/etc/hosts vs DNS & sendmail

Hi All,
I have a question about how /etc/hosts & DNS work on a solaris 9 box.
When I have entries in /etc/hosts that are not in DNS and I run say nslookup the utility will not find the ip. Put if I ping the entry in /etc/hosts it will find it. Basically I have a box with default sendmail and in /etc/hosts I have a entry with mailhost added to it at the end. nslookup does not find the box ping does and sendmail can't send mail to it and I can not verify that it ever worked correctly.
1) what is up with nslookup no seeing /etc/hosts?
2) can sendmail send to hosts per FQDN listed in /etc/hosts & use a DNS server at the same time?
thanks
-im

When I have entries in /etc/hosts that are not in DNS
and I run say nslookup the utility will not find the
ip. Correct. nslookup and /etc/hosts are controlled by /etc/nsswitch.conf.
Files says to search /etc/hosts.
Anything else says to use that name service.
Put if I ping the entry in /etc/hosts it will
find it.If it is in /etc/hosts and /etc/nsswitch.conf says to search /etc/hosts.
and in /etc/hosts I have a entry with mailhost added
to it at the end. nslookup does not find the box ping
does and sendmail can't send mail to it and I can not
verify that it ever worked correctly. Sendmail can be compiled to use or disregard name server lookups in addition to the /etc/nsswitch.conf file.
sendmail -v e-mail_addr, should show you some basic diagnostics.
1) what is up with nslookup no seeing /etc/hosts?That's the way it works.
2) can sendmail send to hosts per FQDN listed in
/etc/hosts & use a DNS server at the same time?sure, see /etc/nsswitch.conf and the sendmail compile time options.
http://www.ilkda.com/sendmail/
alan

Similar Messages

Oracle 11gR2 RAC VM and SCAN and DNS and /etc/hosts (two) setup questions

Hi,
I am looking forward to setting up two Oracle 11gR2 RAC instances
on my Oracle VM test machine.
I plan on using the Oracle 11gR2 RAC VM template.
I want the final Oracle 11gR2 RAC instances to have SCAN that uses DNS.
The DNS will be pre-installed in the JeOS.
My first simple question about the setup is the following.
In my DNS name file, for example,
/var/named/chroot/var/named/milkyway.univ.db
do I need to provide the racnode1 and racnode2 information,
for example,
# DNS name file (snippet)
myjeos IN A 192.168.1.150
racnode1 IN A 192.168.1.161
racnode1-vip IN A 192.168.1.163
racnode2 IN A 192.168.1.162
racnode2-vip IN A 192.168.1.164
rac-scan IN A 192.168.1.131
rac-scan IN A 192.168.1.132
rac-scan IN A 192.168.1.133
Or, can I just provide only the rac-scan information
# DNS name file alternate (snippet)
myjeos IN A 192.168.1.150
rac-scan IN A 192.168.1.131
rac-scan IN A 192.168.1.132
rac-scan IN A 192.168.1.133
What I am getting at is the following.
Within the install process, will racnode1, racnode1-vip, racnode2,
and racnode2-vip host names and their IP address be written
to the RAC instances /etc/hosts files? (So I should not bother
to put them in the DNS name file like '# DNS name file alternate (snippet)'?)
Or, should I put the racnode and racnode-vip host names and IP addresses
in the DNS name file like '# DNS name file (snippet)'?
The second question is the following.
Are the cluster name and the scan name allowed to be different?
Currently, I would plan them to be different,
for example, rac-cluster and rac-scan.
Or, are they required to be the same,
for example, rac-cluster and rac-cluster.
Thank you.
AIM

AIM wrote:
do I need to provide the racnode1 and racnode2 information,
Or, can I just provide only the rac-scan information You need to provide all of it in DNS, because other hosts in your network will need to be able to resolve all of the normal, VIP and SCAN addresses for your RAC nodes. We write this data out to /etc/hosts just to reduce the amount of round-trip DNS requests the cluster nodes make for themselves.
Are the cluster name and the scan name allowed to be different?They can be different.

How could a java process bypass etc\hosts file while doing dns lookup ?

Hi,
I am developing a java web proxy and developer tool [http://www.tcpcatcher.org|http://www.tcpcatcher.org] .
Right now it is working as a none transparent web proxy.
In some situation and for some hosts, I would like to turn it into a transparent web proxy.
Suppose, user's browser and java proxy are running on same host (typically on localhost). An entry is added in etc\hosts file, for example:
127.0.0.1 google.com
So without any change in browser config , if user visits google.com with its browser , http request is received at proxy level.
Now my proxy has to get the actual ip address of google.com bypassing the etc\hosts file (right now the proxy is doing a loop on itself).
Any idea how this could be achieved ?
Am I searching in wrong direction ?
thanks !

This is a shot in the dark, but I'll try anyway.
Take a look at dnsjava (open source, I never played with it).
My understanding is that using this to resolve names instead of normal Java API's would allow you to bypass etc/hosts in the java code
(see [http://old.nabble.com/DNS-Resolve-from-hosts-file-first-then-DNS-Server-td15431381.html]).

SCAN LISTENER runs from only one node at a time from /etc/hosts !

Dear all ,
Recently I have to configure RAC in oracle 11g(r2) in AIX 6.1 . Since in this moment it is not possible to configure DNS, so I dont use SCAN ip into the DNS/GNS, I just add the SCAN ip into the host file like :
cat /etc/hosts
SCAN 172.17.0.22
Got the info from : http://www.freeoraclehelp.com/2011/12/scan-setup-for-oracle-11g-release211gr2.html#ORACLE11GR2RACINS
After configuring all the steps of RAC , Every services are ok except SCAN_LISTENER . This listener is up only one node at a time . First time when I chek it from node1 , it shows :
srvctl status scan_listener
SCAN listener LISTENER_SCAN1 is enabled
SCAN listener LISTENER_SCAN1 is running on node dcdbsvr1
now when I relocate it from node 2 using
"srvctl relocate scan -i 1-n DCDBSVR2" , then the output shows :
srvctl status scan_listener
SCAN listener LISTENER_SCAN1 is enabled
SCAN listener LISTENER_SCAN1 is running on node dcdbsvr2
Baring these , we have to try to relocate it from the node2 by the following way, then it shows the error :
srvctl relocate scan -i 2 -n DCDBSVR2
resource ora.scan2.vip does not exists
Now my question , How can I run the SCAN and SCAN_LISTENER both of the NODES ?
Here is my listener file (which is in the GRID home location) configuration :
Listener File OF NODE1 AND NODE 2:
==================================
ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER_SCAN1=ON
ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER=ON
LISTENER_SCAN1 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC) (KEY = LISTENER_SCAN1)
ADR_BASE_LISTENER_SCAN1 = /U01/APP/ORACLE
2)
Another issue , when I give the command : " ifconfig -a " , then it shows the SCAN ip either node1 or node2 . suppose if the SCAN ip is in the node1 , and then if I run the "relocate" command from node2 , the ip goes to the Node 2 . is it a correct situation ? advice plz ... ...
thx in advance .. ...
Edited by: shipon_97 on Jan 10, 2012 7:22 AM
Edited by: shipon_97 on Jan 10, 2012 7:31 AM

After configuring all the steps of RAC , Every services are ok except SCAN_LISTENER . This listener is up only one node at a time . First time when I chek it from node1 , it shows :If I am not wrong and after looking at the document you sent, you will be able to use only once scan in case you use /etc/host file and this will be up on only one node where you added this scan entry in /etc/hosts file.
Now my question , How can I run the SCAN and SCAN_LISTENER both of the NODES ?Probably you can't in your case, you might run only one i think and on one node only
srvctl status scan_listener
SCAN listener LISTENER_SCAN1 is enabled
SCAN listener LISTENER_SCAN1 is running on node dcdbsvr1
now when I relocate it from node 2 using
"srvctl relocate scan -i 1 -n DCDBSVR2" , then the output shows :
srvctl status scan_listener
SCAN listener LISTENER_SCAN1 is enabled
SCAN listener LISTENER_SCAN1 is running on node dcdbsvr2You moved scan listener from node 1 to node 2, OK
Baring these , we have to try to relocate it from the node2 by the following way, then it shows the error :
srvctl relocate scan -i 2 -n DCDBSVR2
resource ora.scan2.vip does not exists
--------------------------------------------------------------------------------Since you have only one scan, you can't relocate "2". So ise "1" instead here also
FYI
http://www.oracle.com/technetwork/database/clustering/overview/scan-129069.pdf
Salman

Network-profiles (1) and /etc/hosts

Hi everyone,
i've got a few network-profiles, especially in one network I have to use a static ip to connect to the internet. The only entry in the /etc/hosts which works correctly - without any error messages - for me, is
192.168.0.99 localhost.localdomain myhost
If I use something like 127.0.0.1 in front and simply add my hostname at the end, I can't connect with the Inet, unfortunately. I did not test it, but I'm pretty sure, that this host configuration won't work in any other network, where I get a dynamic IP from the DHCP. Is there a possibility to write the content of the /etc/hosts with netcfg, like the /etc/resolv.conf for example?
MfG Skit

Because you didn't specify what localhost was in your hosts file. It only knows of localhost.localdomain(does not imply 'localhost') and acer being the loopback.
I think he understood that.
'localhost' is universally understood as the loopback.
this is some kind of 'magic' answer isn't it? the resolving doesn't come out as a miracle... and that is IMHO what needs explanation.
his computer alone doesn't (obviously) get it because sure, it's not set. now what 'magic' makes it known when a cable is plugged in? the computer tries to reslove locally (via /etc/hosts), fails at it, and then asks the dns server about it. so I reckon the dns server is instructed on replying '127.0.0.1' for a 'localhost' hostname request. why so? because dns servers have an option to look at their local /etc/host for resolving before delegating to bigger servers, so the dns server certainly has localhost matching 127.0.0.1 in his /etc/host, and blindly replies accordingly, oblivious to the fact that he is replying about his 'own' 127.0.0.1 to someone else.
Last edited by lloeki (2008-01-16 08:24:12)

Editing etc\hosts file on windows xp for apps. problem post installation.

Hi all,
I was able to install 11.5.10.2 apps on my win xp prof machine. During that process I had to edit the etc/hosts file in windows directory as a work around for that domain name field during installation. Also added the primary DNS suffix as 'suneel.com' . I gave the domain name as 'suneel.com' during installation. The RapidWiz is taking localhost as the system name and referring to this system as localhost.suneel.com, though the actual system name is 'websoft-xp' .
The host file on Apps machine has the following entries:
127.0.0.1 localhost
127.0.0.1 localhost.suneel.com suneel.com
127.0.0.1 websoft-xp.suneel.com
So when I connect to apps login server from other systems in lan, I've to edit their hosts file and add an entry for localhost.suneel.com to point to its ip address or else the apps throws an error after logging in as operations/welcome using a different url say 192.168.1.4:8000 . Is there a way to get around this issue?
More over I'm not able connect to VIS db from other systems. The oracle clients give an error 'No listner' at this address. (The original listener was listening at localhost.suneel.com:1521). So I tried to create a new listerner from Net Manager that actually listens at websoft-xp (the real system name) but it throws me an error 'A valid log file is required' while saving the network configuration and prevents me from saving the network configuration.
Did I do something wrong with the hosts file during installation or did i miss any entries in that file thats causing this? Any solutions for the above problems will be appreciated?
Thanks
Suneel
Message was edited by:
suneelgv

Well I tried that option but for some reason it didn't work for me. It kept giving the tns:connection closed error. Then I searched in metalink and found this note : Note:333158.1
It suggested setting tcp.validnode_checking = no
in sqlnet.ora. in
F:\oracle\visdb\9.2.0\network\admin\VIS_websoft-xp
And it works. Hope this helps someone facing a similar problem. Good luck.
BTW how do I run autoconfig?
Thanks,
Suneel Gundlapalli

EtreCheck says /etc/hosts file is Corrupted

EtreCheck says the Cofiguration files: /etc/host - Corrupted. Here is the EtreCheck Report and my actual hosts file from Terminal below:
How do I fix this? Thanks
EtreCheck version: 2.0.1 (82)
Report generated October 10, 2014 at 7:52:19 PM PDT
Hardware Information: ℹ️
iMac (27-inch, Late 2013) (Verified)
iMac - model: iMac14,2
1 3.2 GHz Intel Core i5 CPU: 4-core
8 GB RAM Upgradeable
BANK 0/DIMM0
4 GB DDR3 1600 MHz ok
BANK 1/DIMM0
4 GB DDR3 1600 MHz ok
BANK 0/DIMM1
empty empty empty empty
BANK 1/DIMM1
empty empty empty empty
Bluetooth: Good - Handoff supported
Wireless: en1: 802.11 a/b/g/n/ac
Video Information: ℹ️
NVIDIA GeForce GT 755M - VRAM: 1024 MB
iMac 2560 x 1440
System Software: ℹ️
OS X 10.9.5 (13F34) - Uptime: 0 days 5:59:33
Disk Information: ℹ️
APPLE SSD SM0256F disk0 : (251 GB)
S.M.A.R.T. Status: Verified
EFI (disk0s1) <not mounted> : 210 MB
iMac SSD (disk0s2) / [Startup]: 250.14 GB (202.02 GB free)
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
USB Information: ℹ️
Apple Inc. FaceTime HD Camera (Built-in)
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Wacom Co.,Ltd. CTT-460
Apple, Inc. Keyboard Hub
Apple, Inc Apple Keyboard
Thunderbolt Information: ℹ️
Apple Inc. thunderbolt_bus
Configuration files: ℹ️
/etc/hosts - Corrupt!
Gatekeeper: ℹ️
Mac App Store and identified developers
Kernel Extensions: ℹ️
/Applications/DiskWarrior.app
[not loaded] com.alsoft.Preview (4.4) Support
/Applications/VMware Fusion.app
[not loaded] com.vmware.kext.vmci (90.5.7) Support
[not loaded] com.vmware.kext.vmioplug.12.1.17 (12.1.17) Support
[not loaded] com.vmware.kext.vmnet (0188.79.83) Support
[not loaded] com.vmware.kext.vmx86 (0188.79.83) Support
[not loaded] com.vmware.kext.vsockets (90.5.7) Support
/System/Library/Extensions
[not loaded] com.wacom.kext.pentablet (5.2.6) Support
Launch Agents: ℹ️
[running] com.wacom.pentablet.plist Support
User Login Items: ℹ️
None
Internet Plug-ins: ℹ️
WacomNetscape: Version: 1.1.1-1 Support
Flip4Mac WMV Plugin: Version: 3.2.0.16   - SDK 10.8 Support
QuickTime Plugin: Version: 7.7.3
WacomTabletPlugin: Version: WacomTabletPlugin 2.0.0.4 Support
Default Browser: Version: 537 - SDK 10.9
Safari Extensions: ℹ️
Ghostery (Disabled)
FastestTube
YouTube5
NoMoreiTunes
3rd Party Preference Panes: ℹ️
PenTablet Support
Flip4Mac WMV Support
Perian Support
Time Machine: ℹ️
Time Machine not configured!
Top Processes by CPU: ℹ️
      4% WindowServer
      1% fontd
      0% System Events
      0% fseventsd
      0% imagent
Top Processes by Memory: ℹ️
387 MB com.apple.IconServicesAgent
172 MB WindowServer
120 MB mds_stores
94 MB Grab
94 MB Finder
Virtual Memory Information: ℹ️
5.29 GB Free RAM
1.89 GB Active RAM
632 MB Inactive RAM
774 MB Wired RAM
676 MB Page-ins
0 B Page-outs
and here is my actual hosts file from Terminal:
Joses-iMac:~ josemontanez$ cat /etc/hosts
# Host Database
# localhost is used to configure the loopback interface
# when the system is booting. Do not change this entry.
127.0.0.1 localhost
255.255.255.255 broadcasthost
::1             localhost
fe80::1%lo0 localhost
m
Joses-iMac:~ josemontanez

I have 95 corrupt configuration files in /etc/hosts. Here is my EtreCheck report and my Terminal report follows.
Hardware Information: ℹ️
    iMac (24-inch Mid 2007) (Verified)
    iMac - model: iMac7,1
    1 2.8 GHz Intel Core 2 Duo CPU: 2-core
   2 GB RAM Upgradeable
        BANK 0/DIMM0
            1 GB DDR2 SDRAM 667 MHz ok
        BANK 1/DIMM1
            1 GB DDR2 SDRAM 667 MHz ok
    Bluetooth: Old - Handoff/Airdrop2 not supported
    Wireless: en1: 802.11 a/b/g/n
Video Information: ℹ️
    ATI,RadeonHD2600 - VRAM: 256 MB
        iMac 1920 x 1200
System Software: ℹ️
    OS X 10.10.2 (14C109) - Time since boot: 0:4:31
Disk Information: ℹ️
    ST3500630AS Q disk0 : (500.11 GB)
        EFI (disk0s1) <not mounted> : 210 MB
        Macintosh HD (disk0s2) / : 499.25 GB (310.40 GB free)
        Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
USB Information: ℹ️
    Apple Inc. Built-in iSight
    LaCie Porsche Mobile for Mac 2 TB
        EFI (disk1s1) <not mounted> : 210 MB
        LaCie (disk1s2) /Volumes/LaCie : 2.00 TB (1.70 TB free)
    Apple Inc. Bluetooth USB Host Controller
    Apple Computer, Inc. IR Receiver
Configuration files: ℹ️
/etc/hosts - Count: 99 - Corrupt!
Gatekeeper: ℹ️
    Mac App Store and identified developers
Kernel Extensions: ℹ️
        /System/Library/Extensions
    [not loaded]    com.digidesign.fwfamily.driver (7.4f1) [Click for support]
    [not loaded]    com.digidesign.iokit.DigiDal (7.4f1) [Click for support]
    [not loaded]    com.digidesign.iokit.DigiIO (7.4f1) [Click for support]
    [not loaded]    com.digidesign.mbox2.boot.driver (7.4f1) [Click for support]
    [not loaded]    com.digidesign.mbox2.driver (7.4f1) [Click for support]
    [not loaded]    com.paceap.kext.pacesupport.master (5.5) [Click for support]
        /System/Library/Extensions/PACESupportFamily.kext/Contents/PlugIns
    [not loaded]    com.paceap.kext.pacesupport.leopard (5.5) [Click for support]
    [not loaded]    com.paceap.kext.pacesupport.panther (5.5) [Click for support]
    [not loaded]    com.paceap.kext.pacesupport.tiger (5.5) [Click for support]
Startup Items: ℹ️
    Digidesign Mbox 2: Path: /Library/StartupItems/Digidesign Mbox 2
    DigidesignLoader: Path: /Library/StartupItems/DigidesignLoader
    MySQLCOM: Path: /Library/StartupItems/MySQLCOM
    PACESupport: Path: /Library/StartupItems/PACESupport
    Qmaster: Path: /Library/StartupItems/Qmaster
    Startup items are obsolete in OS X Yosemite
Launch Agents: ℹ️
    [not loaded]    com.adobe.AAM.Updater-1.0.plist [Click for support]
    [loaded]    com.divx.dms.agent.plist [Click for support]
    [loaded]    com.divx.update.agent.plist [Click for support]
    [loaded]    com.oracle.java.Java-Updater.plist [Click for support]
Launch Daemons: ℹ️
    [loaded]    com.adobe.fpsaud.plist [Click for support]
    [loaded]    com.adobe.SwitchBoard.plist [Click for support]
    [loaded]    com.adobe.versioncueCS3.plist [Click for support]
    [running]    com.digidesign.fwfamily.helper.plist [Click for support]
    [loaded]    com.microsoft.office.licensing.helper.plist [Click for support]
    [loaded]    com.oracle.java.Helper-Tool.plist [Click for support]
    [failed]    PACESupport.plist [Click for support]
User Launch Agents: ℹ️
    [running]    com.google.Chrome.framework.plist [Click for support]
    [loaded]    com.google.keystone.agent.plist [Click for support]
    [loaded]    com.spotify.webhelper.plist [Click for support]
User Login Items: ℹ️
    iAntiVirus    UNKNOWN Hidden (missing value)
    Caffeine    Application (/Applications/Caffeine.app)
    Dropbox    Application (/Applications/Dropbox.app)
    X1100 Series Button Monitor    Application Hidden (/Library/Application Support/Lexmark/X1100 Series Scanner.bundle/Contents/SharedSupport/X1100 Series Button Monitor.app)
    EEventManager    Application (/Applications/Epson Software/Event Manager.app/Contents/Resources/Assistants/Event Manager/EEventManager.app)
Internet Plug-ins: ℹ️
    DirectorShockwave: Version: 12.1.3r153 - SDK 10.6 [Click for support]
    nplastpass: Version: 2.5.5 [Click for support]
    OVSHelper: Version: 1.1 [Click for support]
    Default Browser: Version: 600 - SDK 10.10
    Google Earth Web Plug-in: Version: 6.0 [Click for support]
    RealPlayer Plugin: Version: Unknown
    AdobePDFViewerNPAPI: Version: 11.0.09 - SDK 10.6 [Click for support]
    FlashPlayer-10.6: Version: 16.0.0.305 - SDK 10.6 [Click for support]
    DivX Web Player: Version: 3.2.4.1250 - SDK 10.6 [Click for support]
    Silverlight: Version: 4.0.50401.0 [Click for support]
    Flash Player: Version: 16.0.0.305 - SDK 10.6 [Click for support]
    iPhotoPhotocast: Version: 7.0
    QuickTime Plugin: Version: 7.7.3
    SharePointBrowserPlugin: Version: 14.0.0 [Click for support]
    AdobePDFViewer: Version: 11.0.09 - SDK 10.6 [Click for support]
    JavaAppletPlugin: Version: Java 7 Update 55 Check version
User internet Plug-ins: ℹ️
    BrowserPlus_2.9.8: Version: 2.9.8 [Click for support]
Safari Extensions: ℹ️
    LastPass
Audio Plug-ins: ℹ️
    DVCPROHDAudio: Version: 1.3
    Digidesign CoreAudio: Version: 7.4 [Click for support]
3rd Party Preference Panes: ℹ️
    Adobe Version Cue CS3 [Click for support]
    BrowserPlus [Click for support]
    Flash Player [Click for support]
    Growl [Click for support]
    Java [Click for support]
Time Machine: ℹ️
    Auto backup: YES
    Volumes being backed up:
        Macintosh HD: Disk size: 499.25 GB Disk used: 188.85 GB
    Destinations:
        LaCie [Local]
        Total size: 2.00 TB
        Total number of backups: 24
        Oldest backup: 2015-01-25 07:12:35 +0000
        Last backup: 2015-03-07 17:57:35 +0000
        Size of backup disk: Excellent
            Backup size 2.00 TB > (Disk size 499.25 GB X 3)
Top Processes by CPU: ℹ️
         5%    Activity Monitor
         5%    recentsd
         3%    CalendarAgent
         3%    WindowServer
         1%    sysmond
Top Processes by Memory: ℹ️
    268 MB    mds_stores
    75 MB    Dropbox
    69 MB    ocspd
    54 MB    Dock
    52 MB    Activity Monitor
Virtual Memory Information: ℹ️
    162 MB    Free RAM
    889 MB    Active RAM
    766 MB    Inactive RAM
    329 MB    Wired RAM
    1.03 GB    Page-ins
    29 KB    Page-outs
Diagnostics Information: ℹ️
    Mar 7, 2015, 10:23:52 AM    Self test - passed
    Mar 6, 2015, 10:50:33 PM    /Library/Logs/DiagnosticReports/Spotify_2015-03-06-225033_[redacted].hang
    Mar 6, 2015, 10:22:01 PM    /Users/[redacted]/Library/Logs/DiagnosticReports/Dock_2015-03-06-222201_[redact ed].crash
    Mar 6, 2015, 08:34:05 PM    /Library/Logs/DiagnosticReports/Safari_2015-03-06-203405_[redacted].hang
TERMINAL REPORT:
Start time: 12:09:52 03/07/15
Model Identifier: iMac7,1
Memory: 2 GB
System Version: OS X 10.10.2 (14C109)
Kernel Version: Darwin 14.1.0
Time since boot: 1:46
Memory
    BANK 0/DIMM0:
      Size: 1 GB
      Speed: 667 MHz
      Status: OK
      Manufacturer: 0xAD00000000000000
    BANK 1/DIMM1:
      Size: 1 GB
      Speed: 667 MHz
      Status: OK
      Manufacturer: 0xAD00000000000000
SATA
   ST3500630AS Q
USB
   Porsche Mobile for Mac (LaCie)
Diagnostic reports
   2015-02-06 coreduetd crash
   2015-02-06 iTunes crash
   2015-02-12 AddressBookSourceSync crash
   2015-02-17 coreduetd crash
   2015-02-17 iTunes crash
   2015-03-06 Dock crash
   2015-03-06 Safari hang
   2015-03-06 Spotify hang
Log
Mar 7 10:25:12 BUG in process suhelperd[176]: over-released legacy external boost assertions (1 total, 1 external, 0 legacy-external)
   Mar 7 10:25:12 BUG in process suhelperd[176]: over-released legacy external boost assertions (1 total, 1 external, 0 legacy-external)
   Mar 7 10:25:12 BUG in process suhelperd[176]: over-released legacy external boost assertions (1 total, 1 external, 0 legacy-external)
   Mar 7 10:25:12 BUG in process suhelperd[176]: over-released legacy external boost assertions (1 total, 1 external, 0 legacy-external)
   Mar 7 10:25:12 BUG in process suhelperd[176]: over-released legacy external boost assertions (1 total, 1 external, 0 legacy-external)
   Mar 7 10:25:12 BUG in process suhelperd[176]: over-released legacy external boost assertions (1 total, 1 external, 0 legacy-external)
   Mar 7 10:25:12 BUG in process suhelperd[176]: over-released legacy external boost assertions (1 total, 1 external, 0 legacy-external)
   Mar 7 10:25:12 BUG in process suhelperd[176]: over-released legacy external boost assertions (1 total, 1 external, 0 legacy-external)
   Mar 7 10:25:12 BUG in process suhelperd[176]: over-released legacy external boost assertions (1 total, 1 external, 0 legacy-external)
   Mar 7 10:25:12 BUG in process suhelperd[176]: over-released legacy external boost assertions (1 total, 1 external, 0 legacy-external)
   Mar 7 10:25:12 BUG in process suhelperd[176]: over-released legacy external boost assertions (1 total, 1 external, 0 legacy-external)
   Mar 7 10:25:12 BUG in process suhelperd[176]: over-released legacy external boost assertions (1 total, 1 external, 0 legacy-external)
   Mar 7 10:25:12 BUG in process suhelperd[176]: over-released legacy external boost assertions (1 total, 1 external, 0 legacy-external)
   Mar 7 10:25:12 BUG in process suhelperd[176]: over-released legacy external boost assertions (1 total, 1 external, 0 legacy-external)
   Mar 7 10:25:12 BUG in process suhelperd[176]: over-released legacy external boost assertions (1 total, 1 external, 0 legacy-external)
   Mar 7 10:25:12 BUG in process suhelperd[176]: over-released legacy external boost assertions (1 total, 1 external, 0 legacy-external)
   Mar 7 10:25:12 BUG in process suhelperd[176]: over-released legacy external boost assertions (1 total, 1 external, 0 legacy-external)
   Mar 7 10:25:12 BUG in process suhelperd[176]: over-released legacy external boost assertions (1 total, 1 external, 0 legacy-external)
   Mar 7 10:25:12 BUG in process suhelperd[176]: over-released legacy external boost assertions (1 total, 1 external, 0 legacy-external)
   Mar 7 10:25:12 BUG in process suhelperd[176]: over-released legacy external boost assertions (1 total, 1 external, 0 legacy-external)
   Mar 7 10:25:12 BUG in process suhelperd[176]: over-released legacy external boost assertions (1 total, 1 external, 0 legacy-external)
   Mar 7 10:25:12 BUG in process suhelperd[176]: over-released legacy external boost assertions (1 total, 1 external, 0 legacy-external)
   Mar 7 10:25:12 BUG in process suhelperd[176]: over-released legacy external boost assertions (1 total, 1 external, 0 legacy-external)
   Mar 7 10:25:47 proc 307: load code signature error 4 for file "garcon"
   Mar 7 10:26:24 BUG in process suhelperd[176]: over-released legacy external boost assertions (0 total, 0 external, 0 legacy-external)
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Bundles
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   /System/Library/Extensions/JMicronATA.kext
   - com.jmicron.JMicronATA
   /System/Library/Extensions/PACESupportFamily.kext
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   /Library/Audio/Plug-Ins/HAL/Digidesign CoreAudio.plugin
   - com.digidesign.digidesign.DigiCoreAudioPlugIn
   /Library/Internet Plug-Ins/AdobePDFViewer.plugin
   - com.adobe.acrobat.pdfviewer
   /Library/Internet Plug-Ins/AdobePDFViewerNPAPI.plugin
   - com.adobe.acrobat.pdfviewerNPAPI
   /Library/Internet Plug-Ins/DirectorShockwave.plugin
   - com.adobe.director.shockwave.pluginshim
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   /Library/Internet Plug-Ins/Google Earth Web Plug-in.plugin
   - com.Google.GoogleEarthPlugin.plugin
   /Library/Internet Plug-Ins/JavaAppletPlugin.plugin
   - com.oracle.java.JavaAppletPlugin
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   - com.lastpass.nplastpass
   /Library/Internet Plug-Ins/OVSHelper.plugin
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   /Library/Internet Plug-Ins/SharePointBrowserPlugin.plugin
   - com.microsoft.sharepoint.browserplugin
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   - com.microsoft.sharepoint.webkitplugin
   /Library/Internet Plug-Ins/Silverlight.plugin
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   /Library/PreferencePanes/Flash Player.prefPane
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   - N/A
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   Library/Address Book Plug-Ins/SkypeABSMS.bundle
   - com.skype.skypeabsms
   Library/Caches/com.apple.Safari/Extensions/LastPass.safariextension
   - com.lastpass.lpsafariextension
   Library/Internet Plug-Ins/BrowserPlus_2.9.8.plugin
   - com.yahoo.browserplus
   Library/iTunes/iTunes Plug-ins/AudioScrobbler.bundle
   - N/A
   Library/PreferencePanes/BrowserPlusPrefs.prefPane
   - com.yahoo.browserplus.prefpane
   Library/PreferencePanes/Growl.prefPane
   - com.growl.prefpanel
   Library/Widgets/Tumblet.wdgt
   - com.tumblr.tumblet
Apps
    /Applications/Dropbox.app
Contents of /etc/hosts
   127.0.0.1 192.150.14.69
   127.0.0.1 192.150.18.101
   127.0.0.1 192.150.18.108
   127.0.0.1 192.150.22.40
   127.0.0.1 192.150.8.100
   127.0.0.1 192.150.8.118
   127.0.0.1 209-34-83-73.ood.opsource.net
   127.0.0.1 3dns-1.adobe.com
   127.0.0.1 3dns-2.adobe.com
   127.0.0.1 3dns-2.adobe.com
   127.0.0.1 3dns-3.adobe.com
   127.0.0.1 3dns-3.adobe.com
   127.0.0.1 3dns-4.adobe.com
   127.0.0.1 3dns.adobe.com
   127.0.0.1 activate-sea.adobe.com
   127.0.0.1 activate-sjc0.adobe.com
   127.0.0.1 activate.adobe.com
   127.0.0.1 activate.wip.adobe.com
   127.0.0.1 activate.wip1.adobe.com
   127.0.0.1 activate.wip2.adobe.com
   127.0.0.1 activate.wip3.adobe.com
   127.0.0.1 activate.wip3.adobe.com
   127.0.0.1 activate.wip4.adobe.com
   127.0.0.1 adobe-dns-1.adobe.com
   127.0.0.1 adobe-dns-2.adobe.com
   ...and 79 more line(s)
Contents of /System/Library/LaunchDaemons/com.apple.installer.osmessagetracing.plist (XML document text)
   <?xml version="1.0" encoding="UTF-8"?>
   <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
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    <string>com.apple.installer.osmessagetracing</string>
    <key>LaunchOnlyOnce</key>
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    <string>/System/Library/PrivateFrameworks/OSInstaller.framework/Resources/OSMes sageTracer</string>
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Global login items
   /Library/Application Support/Lexmark/X1100 Series Scanner.bundle/Contents/SharedSupport/X1100 Series Button Monitor.app
   /Applications/Epson Software/Event Manager.app/Contents/Resources/Assistants/Event Manager/EEventManager.app
Font issues: 15
Listeners
   launchd: printer
   launchd: printer
   cupsd: ipp
User login items
   iAntiVirus
   - missing value
   Caffeine
   - /Applications/Caffeine.app
   Dropbox
   - /Applications/Dropbox.app
   X1100 Series Button Monitor
   - /Library/Application Support/Lexmark/X1100 Series Scanner.bundle/Contents/SharedSupport/X1100 Series Button Monitor.app
   EEventManager
   - /Applications/Epson Software/Event Manager.app/Contents/Resources/Assistants/Event Manager/EEventManager.app
Safari extensions
   LastPass
Restricted files: 10398
Elapsed time (s): 496

Blocking Ad servers via etc/host file not working

In Snow Leopard I add a list of ad servers and direct them to 127.0.0.1 via the /ect/host file.
I've configured the host file on my mac mini server and it doesn't work.
i just want to block ads when using browsers ON the Mini.
How can I achieve this?

Yeah; that's an old-time Windows and Unix hack.
There are ad-blocking extensions for all major web browsers, and those are easier to manage and maintain.
Off the top, I'd have to check the search order to see if I was getting a response from remote DNS or from /etc/hosts here.
If you're running a Mac OS X Server box, you're hopefully also running DNS services, and if you're running DNS services, then that's going to be where this hackery gets implemented. Add bogus zones. And if DNS gets an answer from its cache, I wouldn't tend to expect it to go read /etc/hosts (for performance reasons), for that matter.
There may well be an ad-blocking DNS server around you can forward queries to, too; I haven't looked for that.
If you make changes to your local /etc/hosts setup, try issuing the following to clear the cache:
dnscacheutil -flushcache
I'd recommend installing an ad-blocker. /etc/hosts is an old-school approach and can end up causing weirdnesses on errors, particularly if your box is (also) a DNS server for your LAN. (Also realize that Apple isn't documenting the /etc/hosts file in the Mac OS X Server 10.6 networking manual.)

/etc/hosts Prank Gone Wrong, need help restoring files to original

Some friends were messing around on my computer and playing a joke on me
using the sudo pico /etc/hosts command they were able to send me from sites I wanted to visit, like facebook, to sites I didnt want to visit..
what they wrote was:
67.55.108.167 facebook.com
67.55.108.167 www.facebook.com
I have since deleted it but the every time I go to facebook from another sight I am still redirected. The odd part is that I can go to facebook, but only after ive been redirected. What I mean is, I try to go to facebook, get redirected, then try to go to facebook right away. If I do that it works fine. Also Safari is the only internet browser that is effected. Opera and Firefox are both un effected. I tried uninstalling and reinstalling safari as well as using the same command as they did, but in reverse. Still no luck. Any suggestion? Unfortunately they didnt back up the /etc/hosts before they edited it

You might also want to flush your DNS cache
dscacheutil -flushcache
Also make that password change.
Look in System Preferences -> Accounts to see if your friends added any new admin accounts or granted an existing account admin access.
If they know how to create ssh-keygen keys, they could have deposited a key in your /private/var/root/.ssh/authorized_keys2 file.
There are any number of additional tricks they could have done, if they had admin access. I'm just scratching the surface.
If you do trust these friends, then most likely they just played with /etc/hosts. If they are the kind of friends that get malicious, I would consider the "nuke and pave" reinstall.

/etc/hosts Private Host Name Fully Qualified Domain Name does it matter?

During installation of 11gR1 on Windows 2003 the examples in the installation guide show adding the Private IP and host name to /etc/hosts
However they only add the short name, racnode1, not Fully qualified Domain Name (FQDN), racnode1.mycompany.com
e.g.
10.0.0.1 racnode1
10.0.0.2 racnode2
Later when installing the Clusterware it then expects to see the FQDN, racnode1.mycompany.com, of course you can modify this and remove the domain name and continue. OR go back and add the FQDN in /etc/hosts
e.g.
10.0.0.1 racnode1 racnode1.mycompany.com
10.0.0.2 racnode2 racnode2.mycompany.com
What is the best practice? Currently my company is just dropping the FQDN from the name during the install, my instinct is instead to add the FQDN to the /etc/host in the first place.
Does anyone have a recommendation or experience with either situation?
Will (using/ or not using) the FQDN cause me issues in the future?

If it's a problem, the assistent will tell you :-)
I don't think it's a problem.
Please mind that the first entry will be the name of the ip address, if it's not in DNS and a utility tries to get the name. (that's the reason 127.0.0.1 resolves to localhost.localdomain, it's the first entry in /etc/hosts)

Interconnect ip is not visible in /etc/hosts !!

Hi, all.
The db is 11.2.0.3 on a linux machine. (2-node RAC)
select * from v$cluster_interconnects;
NAME IP_ADDRESS IS_PUBLIC
bond1:1 122.254.188.11 NOThe 122.254.188.11 ip address does not exists in /etc/hosts.
Does this mean mis-configuration for interconnector?
Thanks in advance.
Best Regards.
Edited by: 869578 on 2013. 2. 27 오후 9:34

Hi Friend,
Please check the following :
1. IP Addresses are configured using one of the following options :
a. Oracle Grid Naming Service (GNS) Using one static address defined during your installation.
b. Static addresses that network administrators assign on a network domain name server (DNS) for each node (In your case two nodes)
2. Public IP must registered in the domain name server (DNS) or the /etc/hosts file.
Finally, the cluster must have the following :
1. Public IP for each node
2. Virtual IP for each node
3. Private IP for each node
4. Single Client Access Name (SCAN) for the cluster
Hope it Helps..
Thanks
LaserSoft

Make nslookup read /etc/hosts file

Dear,
OS: OUL5x64
my nslookup resolve the name thru dns server.
question :
how to make nslookup resolves name through /etc/hosts file.
i do have /etc/resolv.conf and /etc/nsswitch.conf file
here is my nsswitch.conf
/etc/nsswitch.conf
#hosts: db files nisplus nis dns
hosts: files
but it never uses the file to resolve the name.
how can i force it to read /etc/hosts file first
Thanks in advance!

Perhaps it would help to elaborate on WHY you want nslookup to use the /etc/hosts file?
If you look at the the name of the nslookup utility, it quite probably is an abbreviation of "nameserver lookup". That strongly suggests it is a tool for querying nameservers.
NOT a tool to debug the name lookups of your operating system.
On the platforms I use (I don't use HPUX), you can query and set the nameserver nslookup uses. I would consider it a bug if the nslookup tool uses /etc/hosts if set in nsswitch.conf.
this is how I lookup what server is set for the utility:
$ nslookup
serverDefault server: 10.0.1.1
Address: 10.0.1.1#53this is how nslookup responds to a query:
nu.nlServer:        10.0.1.1
Address:     10.0.1.1#53
Non-authoritative answer:
Name:     nu.nl
Address: 62.69.184.53
Name:     nu.nl
Address: 62.69.179.198(I don't know how the "jive quote" comes in, it is supposed to be a "bigger than" sign)

Etc/hosts confusion

hi everybody
i have a general question regarding entries in hosts file.
OS : OEL 5
during the installation lets say if i assign a name (test > as localhost)
and (db > as localdomain) and i do not assign any static ip to it.
then the entries in my hosts file be like this
127.0.0.1 test.db test
right ???
will it cause any problem in hosting the software ??
or if i assign a static ip but dont give any DNS ips etc ???
will that cause any problem in hosting ???
i am doing it for my practice purposes.
so what the best option in that scenario ???
Regards !

Cbl wrote:
hi everybody
i have a general question regarding entries in hosts file.
OS : OEL 5
during the installation lets say if i assign a name (test > as localhost)
and (db > as localdomain) and i do not assign any static ip to it.
then the entries in my hosts file be like this
127.0.0.1 test.db test
right ???
will it cause any problem in hosting the software ??
or if i assign a static ip but dont give any DNS ips etc ???
will that cause any problem in hosting ???
i am doing it for my practice purposes.
so what the best option in that scenario ???
Regards !IP 127.0.0.1 is universally understood to be 'localhost'. DO NOT CHANGE THAT!
What you want to ADD TO your /etc/hosts is a line with the assigned static ip address of the server:
# @(#)B11.23_LRhosts $Revision: 1.9.214.1 $ $Date: 96/10/08 13:20:01 $
# The form for each entry is:
# <internet address>   <official hostname> <aliases>
# For example:
# 192.1.2.34   hpfcrm   loghost
# See the hosts(4) manual page for more information.
# Note: The entries cannot be preceded by a space.
#   The format described in this file is the correct format.
#       The original Berkeley manual page contains an error in
#   the format description.
127.0.0.1            localhost
123.456.789.101 hostname.domainname hostname

/etc/hosts is ignored

I configured my computer to use tor and dnsmasq to resolve dns queries exactly how the arch wiki said to. This seems to work fine, however, when I try to add a entry into /etc/hosts it is ignored. To fix this I tried commenting out no-resolv but it did no good. Why is it ignoring my /etc/hosts file?
Here is my /etc/hosts file:
# /etc/hosts: static lookup table for host names
#<ip-address> <hostname.domain.org> <hostname>
127.0.0.1 localhost.localdomain localhost
::1 localhost.localdomain localhost
0.0.0.0 facebook.com
# End of file
Facebook.com still works...
Last edited by SteveDeFacto (2013-12-21 21:20:47)

WonderWoofy wrote:If you are using dnsmasq, why not just put it in your dnsmasq.conf? The formatting will obviously be different, but if that is what is resolving the dns, it would make more sense to put it there.
Actually, the main reason I was trying to modify /etc/hosts is because I am wanting to build a decentralized peer-to-peer service. I need to redirect the user to localhost upon entering a url with ".mydomain" The only way I can think to do this is to add an entry into /etc/hosts.
I just happen to be using tor/dnsmasq so my thought is that modifying /etc/hosts won't always work for people with abnormal dns configurations. I would like to understand why it is not working more than just finding a work around.

/etc/hosts entries ignored

My Mac Pro, OSX 10.5.8, is ignoring entries in the /etc/hosts/ file. I have been all over the net and not found the definitive solution to this for 10.5.8
I know that 10.5.8 does not use /etc/resolv.conf in the expected way, so adding at the top of resolv.conf the line 'order hosts/bind' does not work.
This is a super handy trick for the work I do (I do lots of conversions and migrations of websites and databases) and I have come to depend on my Mac resolving from the hosts file first, before going on to normal DNS.
Any pointers would be very helpful.
-Bosco

That is probably because the *NetInfo Manager* application is no longer used. I use host file entries for ad blocking (in Snow Leopard, too), and it works just fine.
The OP may have improper entries or is doing something like using a text file with non-Unix line endings, but without further feedback it is hard to say.

/etc/hosts vs DNS & sendmail

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