Is there any way to harden Dovecot against POP/IMAP denial of service attacks?
It doesn’t happen very often, but every so often a script kiddie on the Internet hits Dovecot's POP ports on our mail server hard enough to bring mail service to a crawl such that legit users can’t log in to retrieve their mail. I would say that with our 2.66GHz Intel Core 2 Duo Mac Mini Server, when we receive sustained POP login attacks that exceed ten logins per second, then eventually Dovecot gets swamped with so many requests that legit users are excluded. [Our server runs runs OS X Server 10.6.8-10K549, by the way, and Dovecot 1.1.2apple0.5 is installed as determined by running “dovecotd --version”. We keep the mail sever up to date with all available Apple software updates on a weekly basis, so we have the latest and greatest security updates.]
Here’s the problem: I’ve been studying the Dovecot 1.x Wiki at http://wiki1.dovecot.org/ and finding a number of parameters that *sort* of address this denial-of-service vulnerability, but none that appear to harden Dovecot in a similar fashion as ssh or sftp are hardened. By this, I mean that when ssh or sftp detect multiple login attempts originating from the same address above some threshold, then future login attempts are ignored for a solid fifteen minutes no matter what the login name was in the attempts. I’d like something similar for Dovecot.
I am aware of the “mail_max_userip_connections” setting which can be set independently for POP and IMAP service (see http://wiki1.dovecot.org/MainConfig?highlight=%28mail_max_userip_connections%29). This almost does what I want in that it indeed restricts the number of logins for a particular user coming from a single IP address. The problem is that the script kiddies typically scatter their attacks over hundreds of different login names and they may only attempt three or four logins per user name. What I really want is a parameter which starts to ignore logins no matter what the user name if too many come from a single IP address at the same time. Against this, I also need to balance my mail server restrictions to allow perhaps five or ten of my users with laptops to be behind a remote firewall, so all of their legit logins may hit my server perhaps three to ten at a time which could potentially look like an attack if my tuning parameter is set too low. What I’d really like to find is a tuning parameter that excludes concerted attacks without excluding my legitimate users. I also don’t want to invest in extremely expensive (>$10,000) “smart” firewalls that adaptively look for this type of attack, such as are offered by Netgear and other networking equipment manufacturers.
By examining /etc/dovecot/dovecot.conf on my mail server, it seems that Apple’s defaults are to set IMAP mail_max_userip_connections to 20, and for POP to leave the mail_max_userip_connections parameter commented out. Would there be any downside to enabling POP's mail_max_userip_connections to 20 as well? Offhand I can’t see how this would affect my users. Unfortunately, I also think that if I set the POP mail_max_userip_connections to 20 this won’t have any effect on the attackers since they typically won’t try 20 different passwords for the same login name in a given attack. I’ll post a segment of a log showing an actual attack that occurred today from the San Bernadino School District that I’ve since blocked in my network’s firewall, but it will illustrate the type of hard-core denial-of-service attack that I’m referring to. The login attempts were coming in fast, around forty-per-second, and my mail service went down in a matter of minutes as a result. [Yes: I will report this user… I haven’t gotten around to it yet with other issues.]
Any thoughts?
Here’s a ten second snippet from my mail server's log, showing how intense the login frequency was from the attacker, and also how (s)he was "scattering" the login names used which I suspect would be quite hard to filter out using POP's mail_max_userip_connections parameter. The attack lasted from 1:43:39 through a server restart at 1:50:18, and even about a minute later. The attack stopped at 1:51:36 before I was able to add a firewalling rule to my router or to exclude logins from the 163.150/16 subnet from my router [FYI — that's the San Bernadino Country School District, according to http://whois.arin.net/rest/net/NET-163-150-0-0-1/pft ].
Any thoughts on how to block this type of POP attack in Dovecot?
[FYI — I changed my actual server name to 'myserver' and the actual admin name to 'Administrator'.]
Jan 13 13:43:39 myserver dovecot[72]: auth(default): od(root,163.150.246.27): user account: root not enabled for mail
Jan 13 13:43:39 myserver dovecot[72]: auth(default): od[getpwnam_ext](admin,163.150.246.27): No record for user
Jan 13 13:43:39 myserver dovecot[72]: auth(default): od(admin,163.150.246.27): lookup failed for user: admin
Jan 13 13:43:39 myserver dovecot[72]: auth(default): od(webmaster,163.150.246.27): Credentials could not be verified username or password is invalid.
Jan 13 13:43:39 myserver dovecot[72]: auth(default): od[getpwnam_ext](user,163.150.246.27): No record for user
Jan 13 13:43:39 myserver dovecot[72]: auth(default): od(user,163.150.246.27): lookup failed for user: user
Jan 13 13:43:39 myserver dovecot[72]: auth(default): od[getpwnam_ext](test,163.150.246.27): No record for user
Jan 13 13:43:39 myserver dovecot[72]: auth(default): od(test,163.150.246.27): lookup failed for user: test
Jan 13 13:43:40 myserver dovecot[72]: auth(default): od[getpwnam_ext](web,163.150.246.27): No record for user
Jan 13 13:43:40 myserver dovecot[72]: auth(default): od(web,163.150.246.27): lookup failed for user: web
Jan 13 13:43:40 myserver dovecot[72]: auth(default): od(www,163.150.246.27): user account: _www not enabled for mail
Jan 13 13:43:40 myserver dovecot[72]: auth(default): od(administrator,163.150.246.27): user account: Administrator not enabled for mail
Jan 13 13:43:40 myserver dovecot[72]: auth(default): od[getpwnam_ext](oracle,163.150.246.27): No record for user
Jan 13 13:43:40 myserver dovecot[72]: auth(default): od(oracle,163.150.246.27): lookup failed for user: oracle
Jan 13 13:43:40 myserver dovecot[72]: auth(default): od(root,163.150.246.27): user account: root not enabled for mail
Jan 13 13:43:40 myserver dovecot[72]: auth(default): od[getpwnam_ext](admin,163.150.246.27): No record for user
Jan 13 13:43:40 myserver dovecot[72]: auth(default): od(admin,163.150.246.27): lookup failed for user: admin
Jan 13 13:43:40 myserver dovecot[72]: auth(default): od[getpwnam_ext](sybase,163.150.246.27): No record for user
Jan 13 13:43:40 myserver dovecot[72]: auth(default): od(sybase,163.150.246.27): lookup failed for user: sybase
Jan 13 13:43:40 myserver dovecot[72]: auth(default): od[getpwnam_ext](informix,163.150.246.27): No record for user
Jan 13 13:43:40 myserver dovecot[72]: auth(default): od(informix,163.150.246.27): lookup failed for user: informix
Jan 13 13:43:40 myserver dovecot[72]: auth(default): od(root,163.150.246.27): user account: root not enabled for mail
Jan 13 13:43:40 myserver dovecot[72]: auth(default): od(webmaster,163.150.246.27): Credentials could not be verified username or password is invalid.
Jan 13 13:43:40 myserver dovecot[72]: auth(default): od[getpwnam_ext](oracle8,163.150.246.27): No record for user
Jan 13 13:43:40 myserver dovecot[72]: auth(default): od(oracle8,163.150.246.27): lookup failed for user: oracle8
Jan 13 13:43:40 myserver dovecot[72]: auth(default): od(backup,163.150.246.27): user account: backup not enabled for mail
Jan 13 13:43:40 myserver dovecot[72]: auth(default): od(root,163.150.246.27): user account: root not enabled for mail
Jan 13 13:43:40 myserver dovecot[72]: auth(default): od(webmaster,163.150.246.27): Credentials could not be verified username or password is invalid.
Jan 13 13:43:40 myserver dovecot[72]: auth(default): od[getpwnam_ext](lizdy,163.150.246.27): No record for user
Jan 13 13:43:40 myserver dovecot[72]: auth(default): od(lizdy,163.150.246.27): lookup failed for user: lizdy
Jan 13 13:43:40 myserver dovecot[72]: auth(default): od[getpwnam_ext](test,163.150.246.27): No record for user
Jan 13 13:43:40 myserver dovecot[72]: auth(default): od(test,163.150.246.27): lookup failed for user: test
Jan 13 13:43:40 myserver dovecot[72]: auth(default): od[getpwnam_ext](user,163.150.246.27): No record for user
Jan 13 13:43:40 myserver dovecot[72]: auth(default): od(user,163.150.246.27): lookup failed for user: user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od[getpwnam_ext](web,163.150.246.27): No record for user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(web,163.150.246.27): lookup failed for user: web
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od[getpwnam_ext](admin,163.150.246.27): No record for user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(admin,163.150.246.27): lookup failed for user: admin
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(www,163.150.246.27): user account: _www not enabled for mail
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od[getpwnam_ext](server,163.150.246.27): No record for user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(server,163.150.246.27): lookup failed for user: server
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od[getpwnam_ext](test,163.150.246.27): No record for user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(test,163.150.246.27): lookup failed for user: test
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od[getpwnam_ext](data,163.150.246.27): No record for user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(data,163.150.246.27): lookup failed for user: data
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(administrator,163.150.246.27): user account: Administrator not enabled for mail
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od[getpwnam_ext](web,163.150.246.27): No record for user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(web,163.150.246.27): lookup failed for user: web
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(webmaster,163.150.246.27): Credentials could not be verified username or password is invalid.
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od[getpwnam_ext](user,163.150.246.27): No record for user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(user,163.150.246.27): lookup failed for user: user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od[getpwnam_ext](account,163.150.246.27): No record for user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(account,163.150.246.27): lookup failed for user: account
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(www,163.150.246.27): user account: _www not enabled for mail
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od[getpwnam_ext](oracle,163.150.246.27): No record for user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(oracle,163.150.246.27): lookup failed for user: oracle
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od[getpwnam_ext](sybase,163.150.246.27): No record for user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(sybase,163.150.246.27): lookup failed for user: sybase
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od[getpwnam_ext](test,163.150.246.27): No record for user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(test,163.150.246.27): lookup failed for user: test
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od[getpwnam_ext](access,163.150.246.27): No record for user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(access,163.150.246.27): lookup failed for user: access
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(administrator,163.150.246.27): user account: Administrator not enabled for mail
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od[getpwnam_ext](web,163.150.246.27): No record for user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(web,163.150.246.27): lookup failed for user: web
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od[getpwnam_ext](pwrchute,163.150.246.27): No record for user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(pwrchute,163.150.246.27): lookup failed for user: pwrchute
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od[getpwnam_ext](oracle,163.150.246.27): No record for user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(oracle,163.150.246.27): lookup failed for user: oracle
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od[getpwnam_ext](informix,163.150.246.27): No record for user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(informix,163.150.246.27): lookup failed for user: informix
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(www,163.150.246.27): user account: _www not enabled for mail
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od[getpwnam_ext](sybase,163.150.246.27): No record for user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(sybase,163.150.246.27): lookup failed for user: sybase
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od[getpwnam_ext](oracle8,163.150.246.27): No record for user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(oracle8,163.150.246.27): lookup failed for user: oracle8
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(administrator,163.150.246.27): user account: Administrator not enabled for mail
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od[getpwnam_ext](informix,163.150.246.27): No record for user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(informix,163.150.246.27): lookup failed for user: informix
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od[getpwnam_ext](test,163.150.246.27): No record for user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(test,163.150.246.27): lookup failed for user: test
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od[getpwnam_ext](admin,163.150.246.27): No record for user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(admin,163.150.246.27): lookup failed for user: admin
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(backup,163.150.246.27): user account: backup not enabled for mail
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od[getpwnam_ext](user,163.150.246.27): No record for user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(user,163.150.246.27): lookup failed for user: user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(webmaster,163.150.246.27): Credentials could not be verified username or password is invalid.
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(root,163.150.246.27): user account: root not enabled for mail
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od[getpwnam_ext](oracle,163.150.246.27): No record for user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(oracle,163.150.246.27): lookup failed for user: oracle
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od[getpwnam_ext](lizdy,163.150.246.27): No record for user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(lizdy,163.150.246.27): lookup failed for user: lizdy
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od[getpwnam_ext](oracle8,163.150.246.27): No record for user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(oracle8,163.150.246.27): lookup failed for user: oracle8
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od[getpwnam_ext](sybase,163.150.246.27): No record for user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(sybase,163.150.246.27): lookup failed for user: sybase
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(backup,163.150.246.27): user account: backup not enabled for mail
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od[getpwnam_ext](server,163.150.246.27): No record for user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(server,163.150.246.27): lookup failed for user: server
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od[getpwnam_ext](user,163.150.246.27): No record for user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(user,163.150.246.27): lookup failed for user: user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(root,163.150.246.27): user account: root not enabled for mail
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od[getpwnam_ext](admin,163.150.246.27): No record for user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(admin,163.150.246.27): lookup failed for user: admin
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od[getpwnam_ext](informix,163.150.246.27): No record for user
Jan 13 13:43:41 myserver dovecot[72]: auth(default): od(informix,163.150.246.27): lookup failed for user: informix
Jan 13 13:43:42 myserver dovecot[72]: auth(default): od[getpwnam_ext](lizdy,163.150.246.27): No record for user
Jan 13 13:43:42 myserver dovecot[72]: auth(default): od(lizdy,163.150.246.27): lookup failed for user: lizdy
Jan 13 13:43:42 myserver dovecot[72]: auth(default): od[getpwnam_ext](admin,163.150.246.27): No record for user
Jan 13 13:43:42 myserver dovecot[72]: auth(default): od(admin,163.150.246.27): lookup failed for user: admin
Jan 13 13:43:42 myserver dovecot[72]: auth(default): od[getpwnam_ext](data,163.150.246.27): No record for user
Jan 13 13:43:42 myserver dovecot[72]: auth(default): od(data,163.150.246.27): lookup failed for user: data
Jan 13 13:43:42 myserver dovecot[72]: auth(default): od[getpwnam_ext](oracle8,163.150.246.27): No record for user
Jan 13 13:43:42 myserver dovecot[72]: auth(default): od(oracle8,163.150.246.27): lookup failed for user: oracle8
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od(webmaster,163.150.246.27): Credentials could not be verified username or password is invalid.
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od(backup,163.150.246.27): user account: backup not enabled for mail
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od[getpwnam_ext](user,163.150.246.27): No record for user
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od(user,163.150.246.27): lookup failed for user: user
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od[getpwnam_ext](access,163.150.246.27): No record for user
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od(access,163.150.246.27): lookup failed for user: access
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od[getpwnam_ext](pwrchute,163.150.246.27): No record for user
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od(pwrchute,163.150.246.27): lookup failed for user: pwrchute
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od[getpwnam_ext](server,163.150.246.27): No record for user
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od(server,163.150.246.27): lookup failed for user: server
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od[getpwnam_ext](server,163.150.246.27): No record for user
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od(server,163.150.246.27): lookup failed for user: server
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od[getpwnam_ext](data,163.150.246.27): No record for user
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od(data,163.150.246.27): lookup failed for user: data
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od[getpwnam_ext](lizdy,163.150.246.27): No record for user
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od(lizdy,163.150.246.27): lookup failed for user: lizdy
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od(root,163.150.246.27): user account: root not enabled for mail
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od[getpwnam_ext](account,163.150.246.27): No record for user
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od(account,163.150.246.27): lookup failed for user: account
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od[getpwnam_ext](test,163.150.246.27): No record for user
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od(test,163.150.246.27): lookup failed for user: test
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od[getpwnam_ext](web,163.150.246.27): No record for user
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od(web,163.150.246.27): lookup failed for user: web
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od[getpwnam_ext](access,163.150.246.27): No record for user
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od(access,163.150.246.27): lookup failed for user: access
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od[getpwnam_ext](admin,163.150.246.27): No record for user
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od(admin,163.150.246.27): lookup failed for user: admin
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od[getpwnam_ext](account,163.150.246.27): No record for user
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od(account,163.150.246.27): lookup failed for user: account
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od[getpwnam_ext](data,163.150.246.27): No record for user
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od(data,163.150.246.27): lookup failed for user: data
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od(www,163.150.246.27): user account: _www not enabled for mail
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od[getpwnam_ext](admin,163.150.246.27): No record for user
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od(admin,163.150.246.27): lookup failed for user: admin
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od(administrator,163.150.246.27): user account: Administrator not enabled for mail
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od(www,163.150.246.27): user account: _www not enabled for mail
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od[getpwnam_ext](oracle8,163.150.246.27): No record for user
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od(oracle8,163.150.246.27): lookup failed for user: oracle8
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od[getpwnam_ext](oracle,163.150.246.27): No record for user
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od(oracle,163.150.246.27): lookup failed for user: oracle
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od(administrator,163.150.246.27): user account: Administrator not enabled for mail
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od[getpwnam_ext](oracle8,163.150.246.27): No record for user
Jan 13 13:43:44 myserver dovecot[72]: auth(default): od(oracle8,163.150.246.27): lookup failed for user: oracle8
Jan 13 13:43:46 myserver dovecot[72]: auth(default): od(webmaster,163.150.246.27): Credentials could not be verified username or password is invalid.
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od[getpwnam_ext](oracle,163.150.246.27): No record for user
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od(oracle,163.150.246.27): lookup failed for user: oracle
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od[getpwnam_ext](data,163.150.246.27): No record for user
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od(data,163.150.246.27): lookup failed for user: data
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od[getpwnam_ext](lizdy,163.150.246.27): No record for user
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od(lizdy,163.150.246.27): lookup failed for user: lizdy
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od[getpwnam_ext](admin,163.150.246.27): No record for user
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od(admin,163.150.246.27): lookup failed for user: admin
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od(backup,163.150.246.27): user account: backup not enabled for mail
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od[getpwnam_ext](user,163.150.246.27): No record for user
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od(user,163.150.246.27): lookup failed for user: user
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od[getpwnam_ext](admin,163.150.246.27): No record for user
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od(admin,163.150.246.27): lookup failed for user: admin
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od[getpwnam_ext](test,163.150.246.27): No record for user
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od(test,163.150.246.27): lookup failed for user: test
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od[getpwnam_ext](web,163.150.246.27): No record for user
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od(web,163.150.246.27): lookup failed for user: web
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od[getpwnam_ext](account,163.150.246.27): No record for user
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od(account,163.150.246.27): lookup failed for user: account
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od(www,163.150.246.27): user account: _www not enabled for mail
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od[getpwnam_ext](admin,163.150.246.27): No record for user
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od(admin,163.150.246.27): lookup failed for user: admin
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od(backup,163.150.246.27): user account: backup not enabled for mail
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od[getpwnam_ext](oracle8,163.150.246.27): No record for user
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od(oracle8,163.150.246.27): lookup failed for user: oracle8
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od[getpwnam_ext](web,163.150.246.27): No record for user
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od(web,163.150.246.27): lookup failed for user: web
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od[getpwnam_ext](web,163.150.246.27): No record for user
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od(web,163.150.246.27): lookup failed for user: web
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od[getpwnam_ext](informix,163.150.246.27): No record for user
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od(informix,163.150.246.27): lookup failed for user: informix
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od[getpwnam_ext](oracle,163.150.246.27): No record for user
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od(oracle,163.150.246.27): lookup failed for user: oracle
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od[getpwnam_ext](test,163.150.246.27): No record for user
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od(test,163.150.246.27): lookup failed for user: test
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od[getpwnam_ext](lizdy,163.150.246.27): No record for user
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od(lizdy,163.150.246.27): lookup failed for user: lizdy
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od(backup,163.150.246.27): user account: backup not enabled for mail
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od(www,163.150.246.27): user account: _www not enabled for mail
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od[getpwnam_ext](sybase,163.150.246.27): No record for user
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od(sybase,163.150.246.27): lookup failed for user: sybase
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od(administrator,163.150.246.27): user account: Administrator not enabled for mail
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od(root,163.150.246.27): user account: root not enabled for mail
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od[getpwnam_ext](sybase,163.150.246.27): No record for user
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od(sybase,163.150.246.27): lookup failed for user: sybase
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od[getpwnam_ext](informix,163.150.246.27): No record for user
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od(informix,163.150.246.27): lookup failed for user: informix
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od[getpwnam_ext](sybase,163.150.246.27): No record for user
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od(sybase,163.150.246.27): lookup failed for user: sybase
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od[getpwnam_ext](server,163.150.246.27): No record for user
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od(server,163.150.246.27): lookup failed for user: server
Jan 13 13:43:48 myserver dovecot[72]: auth(default): od(www,163.150.246.27): user account: _www not enabled for mail
Similar Messages
-
After deleting an email address from Contacts is there any way of preventing it from popping up in the To: field of Mail when one starts to type in a contact name?
if you are not on ios 6, then all you can do is wait. if you have deleted the address from your contact list, then it will live on for a while in your 'recently used' addresses. as you use new addresses, those older ones fall down the list, and eventually fall off altogether (unless you use them again). Have patience, it will go away.
Or do the update.... -
Is there any way to affect the progress of availability (iTunes cloud services) for my country?
I am a Norwegian iTunes user, and have purchased various songs on various devices (MabBook, iPhone, iMac).
I'm getting sick and tired of not being able to sync my purchases to all devices.
- Is there any way to provoke the progress of getting services like Match in my country too?Primarely i was thinking about http://support.apple.com/kb/HT5085.
But i think the lack of automatic downloads is an automatic result of not being able to use the cloud for music/video.
You might not be aware of this, but there's currently no way for me (and many others) to have the same files on more than one device (unless paying for another copy). -
I'm using TestStand 2.0/Labview 6i to do a string value test. Is there any way to use a string variable in the edit string value test instead of an actual string?? This forces you to hard code a string to test against.
Hi ART,
You can also use the LimitLoader step to load your string into to step similar to the Numeric Step type.
There should be an example of this in the Resource Library | TestStand
Regards
Ray Farmer
Regards
Ray Farmer -
Is there any way in FDQM to validate the source records against the essbase
hi everyone
i want to know is there any way that FDQM can validate the source records against essbase. say for example i have a a ud dimension member coming from the source i want to compare this member with essbase member in the outline and pass/fail the validation. can we do this?
thanks
tmHi
Are you processing through the web client or as a batch process?
If you are loading manually through the web then it is standard functionality to highlight any source metadata imported that does not get mapped to a target, you then get the opportunity to correct those members at the Validate stage. If you are setting up mapping tables with specific target members then these have to be valid members in the Essbase outline (although I guess there is a risk that those members change over time and do you mappings stay in sync), it also doesn't do that validation if you upload your maps from template files (.xls / .tra / .trn) or if you have a * to * like mapping.
If you are processing in batch then if there are any members that do not have a vliad target member after import (remember mapping is applied during the import stage) then the batch fails. You can use the AutoMapCorrect feature to overcome this and map to a default 'suspense' type member if that gives you an issue.
Ultimately if you get to the load stage and the combination of members is not valid then FDM produces a load error file, this will contain all of the records exported from FDM that have failed to load to Essbase. What this doesn't easily give you is the source metadata that makes up those failed records.
Can you provide any more info as to your current process and then we might be able to provide a few more pointers.
Hope this helps
Stuart -
Is there any way to create fields reports users can enter data into?
I am using Crystal XI to develop reports for my company and have not received any formal training on it. I'm learning it fairly well through the help files.
One of the reports I need to create summarizes our scrap, rework, and additional incurred expenses for our monthly quality reports. Most of the information is stored in the main program used by all employees, a very small amount of it is not. I have created sub-reports for each of the different types of costs that are tracked in the system.
Is there any way to create an area on the report that our QA people can use to enter the items not tracked in the main system? I am imagining that it would be through another sub-report of some kind, but do not know how to create the fields needed.
Thank you very much for any assistance you can provide, even if it is to tell me "You can't do that, ma'am..." At least then I would know and wouldn't beat my head against the desk trying to figure out how to do it.Is defining parameter prompts in the Crystal Report and displaying it in the report a possible workaround?
If you define parameter prompts, then Crystal will query the user before running the report - so this would be problematic if the user needs to reference data in the report to enter appropriate values (one possibility then is to use interactive parameters feature available in CR 2008).
Sincerely,
Ted Ueda -
Is there any way to force the following initial view...
..."fit to page" + "two pages per screen - but only if there's room for two"?
In other words, I want the page to fit in the screen upon initial view, but I also see a lot of wasted real estate all around that could, most of the time, fit a second page. However, I don't want the two pages to count against the "fit" -- meaning, on narrower screens, the priority should go to fitting the first page (and not showing the 2nd) rather than fit both pages at all costs.
Is there any way to ask Acrobat to do this?The initial view (IV) settings within a PDF file are static tags - they can't be made to dynamically-adapt based on the window dimensions,it's the renderer (Acrobat, Reader, or whatever else is opening the file) that decides if and how it will follow the IV requested by the file header.
It would be possible to use a Page Open action on the first page of the file, which does some nasty math with the various doc.*WindowRect objects to work out how much "wasted" space there is, and then set the doc.layout and doc.zoomType properties - but page actions are a different concept to IV as the zoom will reset itself every time that page is viewed. Users don't like their application apparently fiddling with the zoom level without being told to! -
i was working on a project in iMovie (10.0.1) and iMovie just crashed. when i reopened it the project i was working on disappeared. in my list of projects it still says i have 3 projects but its only showing me 2. is there any way i can recover my project?? PLEASE HELP!!!
iMovie on your Mac has nothing to do with iCloud storage. Download and use Find Any File to search for your iMovie project. FAF can search areas that Spotlight can't, like invisible folders, packages and system folders. If there a file with your file name on it anywhere on the hard drive FAF will find it.
Do you have Time Machine enabled backing up to an external HD? This situation is exactly what TM is good at. It makes hourly backups so you can go back to find and restore the missing file. All HDs crash at some time or another and having a good backup strategy is the only protection against that. -
Is there any way for me to remove a broken audio jack stuck in my macbook?
is there any way for me to remove a broken audio jack stuck in my macbook?
You'll have to get a Dremel motor tool and some fine metal bits, make a jig to hold the Dremel so it's stationary, then a slider jig for the MacBook Pro so the bit can drill into the center of the stuck plug.
Gently push the MBP against the drill bit so it drills into the stuck plug.
Once the hole is drilled down deep enough, use some metal to metal epoxy resin to glue the bit into the drilled hole, then let it set up according to directions.
Take a pair of vise-grips and get a good grip on the bit portion sticking out and gently pull it straight out, if you bend or twist, you can snap off the bit. -
I have an IPod Touch 3rd generation 8 gb, is there any way besides jailbreaking that I can get IOS 4.3.?
You do not have a 3rd gen 8Gb iPod Touch. There is no such thing - really, truely, double true, extra double protected true. {lllaass, back me up here}
Jailbreaking cannot be discussed on Apple forums., except to point you to the following article: http://support.apple.com/kb/HT3743 which will let you know why Apple strongly cautions against "jailbreaking".
You could sell your current iPod and buy a new one, which will be able to use iOS 5.
GM: gross mismanagement
I suppoose jailbreaking would be a GM! -
Is there any way to find out what brush is applied to a path?
I'm trying to write a script: select some paths, run the script, then each path that has a brush applied to it is changed to use a random brush whose name is sufficiently similar to its current brush. The application is pretty obvious - draw a bunch of lines in, say, 'ragged marker 1', then give it some extra liveliness by having five or six 'ragged marker' brushes that get randomly chosen.
The problem I'm running against is that as far as I can tell, Illustrator only lets Javascript set what brush an object is using with brush.applyTo (artItem), but I can't seem to find any way to find out what path a brush is currently using via JS.
Am I just not looking in the right place of the Javascript reference, or is this really a thing that only has a setter, with no corresponding getter?Just like you said earlier
3. Re: Is there any way to find out what brush is applied to a path?
imagecollection Apr 7, 2015 6:01 PM (in response to Silly-V)
The skill of scripting in Illustrator is to (due to necessity) find the most difficult way to achieve the simplest of tasks...
so to retort I say this;
“I suppose it is tempting, if the only tool you have is a hammer, to treat everything as if it were a nail.”
― Abraham Maslow, Toward a Psychology of Being -
My MacBook was wiped of all my music and everything else, and now my iTouch is the only device with my entire music database. My iTouch is old. (Version 6.1.6, Model number: MC547LL/A) Is there any way I can put all the music on my iTouch back onto my MacBook? I hate that I could lose my entire music library by dropping my iTouch in the toilet.
I've tried to plug in my iTouch into my MacBook, but I can't seem to give the music-transfusion without subscribing to iTunes Match or just completely wiping my iTouch.
PLEASE HELP MEEEEEYour i-device was not designed for unique storage of your media. It is not a backup device and media transfer was planned with you maintaining a master copy of your media on a computer which is itself independently backed up against loss. To use a device with a different setup you transfer the old library from a computer or a backup directly to the new setup, not the device to the library. Media syncing is one way, computer to device, updating the device content to the content on the computer, not updating or restoring content on a computer. The exception is iTunes Store purchases which can be transferred to a computer.
iTunes Store: Transferring purchases from your iOS device or iPod to a computer - http://support.apple.com/kb/HT1848 - only purchases from iTunes Store
For transferring other items from an i-device to a computer you will have to use third party commercial software. See this document by turingtest2: Recovering your iTunes library from your iPod or iOS device - https://discussions.apple.com/docs/DOC-3991 -
The computer that had my iTunes account on has broken, and was thrown away.
All the media I bought on it are on my iPhone only - is there any way to re-open my iTunes on the new computer or to download them off my iPhone?
I'm worried that if I lose my iPhone all will be lost. Please help!
Thanks,
AlastairBuy yourself a backup drive. Your i-device was not designed for unique storage of your media. It is not a backup device and media transfer is structured around you maintaining your media on a computer which is itself properly backed up against loss. Syncing is one way, computer to device, matching the device content to the content on the computer. The exception is purchased content.
iTunes Store: Transferring purchases from your iOS device or iPod to a computer - http://support.apple.com/kb/HT1848 - only media purchased from iTunes Store
For transferring other items from an i-device to a computer you will probably have to use third party commercial software unless you have an older model iPod. Examples (check the web for others; this is not an exhaustive listing, nor do I have any idea if they are any good):
- Senuti - http://www.fadingred.com/senuti/
- Phoneview - http://www.ecamm.com/mac/phoneview/
- MusicRescue - http://www.kennettnet.co.uk/products/musicrescue/ - Mac & Windows
- Sharepod (free) - http://download.cnet.com/SharePod/3000-2141_4-10794489.html?tag=mncol;2 - Windows
- Snowfox/iMedia - http://www.mac-videoconverter.com/imedia-transfer-mac.html - Mac & PC
- Yamipod (free) - http://www.yamipod.com/main/modules/downloads/ - PC, Linux, Mac [Still updated for use on newer devices? No edits to site since 2010.]
- Post by Zevoneer: iPod media recovery options - https://discussions.apple.com/message/11624224 - this is an older post and many of the links are also for old posts, so bear this in mind when reading them.
Syncing to a "New" Computer or replacing a "crashed" Hard Drive - https://discussions.apple.com/docs/DOC-3141 - dates from 2008 and some outdated information now.
Copying Content from your iPod to your Computer - The Definitive Guide - http://www.ilounge.com/index.php/articles/comments/copying-music-from-ipod-to-co mputer/ - Information about use in disk mode pertains only to older model iPods.
Get Your Music Off of Your iPod - http://howto.wired.com/wiki/Get_Your_Music_Off_of_Your_iPod - I am not sure but this may only work with some models and not newer Touch, iPhone, or iPad.
Additional information here https://discussions.apple.com/message/18324797 -
Is there any way I can use bi beans without the patches
I am a Chinese student,I am doing some research on OLAP.
I'm in the initial stages of evaluating BI Beans for my research. We have previously not used Oracle in house.
In attempting to use BI Beans, the first thing you must do is install the latest patches against the Oracle database. Unfortunately, the patches are only available for people with a suport contract.
Is there any way I can get these patches without a support contract, or is there any way I can use bi beans without the patches?
thanks alot,You must have a valid support contract to access Metalink. You could try contacting your local support centre and ask if they could make the patches available to you.
Business Intelligence Beans Product Management Team
Oracle Corporation -
Is there any way to check a software install disk for damage?
Is there any way I can check a DVD software install disk for damage?
Yes the disk, at least the main one, is O.K. I guess what I'm trying to determine here is whether or not my Logic Pro Studio install disks are corrupted in any way because, on my system Logic behaves in quite a glitchy manner, something that other Logic users (at least on the Logic Forums) are not experincing. I've narrowed it down to a software issue but I've yet to detemine if this is an OS problem, a Logic problem or something else. What mitigates against the idea that this is an OS problem is that anything other than Audio programs on my system runs fine. But audio programs, particularly Logic, are having problems. A reinstallation of Logic solved nothing which is why I suspected that there may be something wrong with the program install disks. But the program does install and it does 95% of what its supposed to do. The disks are clean and have no scratches.
Maybe you are looking for
-
Target coupons will no longer print....error message?
I get this message when I try to print Target coupons now. I have the latest version of Java. I used to be able to print coupons no problem, but something has changed and I don't know how to fix it. I did figure out that the icon represented in the e
-
Sending doc as attachment in mail for Ois 8 I phone 6+
Hi All 1) I just bought apple phone fist time and facing serious problem for attaching document like word or excel of PDF with the mails. All my work goes with PDF, word and excel with out this I can't work. 2) How to make folder to keep the data syn
-
Configure sharepoint 2013 with Microsoft exchange 2010
Hi, I am want to configure SharePoint 2013 with Microsoft exchange 2010. Please let me how can I integrate these server to Send/ Receive domain E-mails. Thanks, C Mahone
-
It just started doing this randomly one day, I tried restarting my computer but it doesn't help. Every b I use is copy and pasted because I just cant press it with firefox anymore. How do I fix this???
-
How to disable the SAPGUI ScreenUpdating using VBA
Hi Somebody Knows how I can disable the ScreenUpdating of SAPGUI 7.30 using VBA Just like we do in Excel using the "Application.ScreenUpdating = False" I want to do that in SAPGUI 7.30 using vba. Thanks for your time