Slow SSH connection buildup
Hello, i have a problem while connecting to (openssh) hosts from the commandline of my Mac OS X 10.4.3 machine.
The connection takes very long to complete, i have this to nearly all hosts on my network, and on the internet.
There is a 'pause' of about 20 seconds between these two lines:
debug1: Local version string SSH-2.0-OpenSSH_3.8.1p1
debug1: An invalid name was supplied
After some research i think the kerberos authentication is to blame for the delay, but setting GSSAPIAuthentication and GSSAPIDelegateCredentials to no, or starting ssh with -k doesn't solve the problem.
I have been searching for a solution for this problem for quite some time now, has anyone seen this problem?
Debug output of a session:
joost-leks-powerbook-g4-15:~/Documents/idisk joost$ ssh -v 10.0.0.123
OpenSSH_3.8.1p1, OpenSSL 0.9.7g 11 Apr 2005
debug1: Reading configuration data /Users/joost/.ssh/config
debug1: Reading configuration data /etc/ssh_config
debug1: Connecting to 10.0.0.123 [10.0.0.123] port 22.
debug1: Connection established.
debug1: identity file /Users/joost/.ssh/identity type -1
debug1: identity file /Users/joost/.ssh/id_rsa type 1
debug1: identity file /Users/joost/.ssh/id_dsa type 2
debug1: Remote protocol version 2.0, remote software version OpenSSH_3.8.1p1 Debian-8.sarge.4
debug1: match: OpenSSH_3.8.1p1 Debian-8.sarge.4 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_3.8.1p1
debug1: An invalid name was supplied
Cannot determine realm for numeric host address
debug1: An invalid name was supplied
A parameter was malformed
Validation error
debug1: An invalid name was supplied
Cannot determine realm for numeric host address
debug1: An invalid name was supplied
A parameter was malformed
Validation error
debug1: SSH2MSGKEXINIT sent
debug1: SSH2MSGKEXINIT received
debug1: kex: server->client aes128-cbc hmac-md5 none
debug1: kex: client->server aes128-cbc hmac-md5 none
debug1: SSH2MSG_KEX_DH_GEXREQUEST(1024<1024<8192) sent
debug1: expecting SSH2MSG_KEX_DH_GEXGROUP
debug1: SSH2MSG_KEX_DH_GEXINIT sent
debug1: expecting SSH2MSG_KEX_DH_GEXREPLY
The authenticity of host '10.0.0.123 (10.0.0.123)' can't be established.
(after this, the connection is started fine)
Thank you both for your quick replies. I happened to try these suggestions both allready and they do not sufficiently solve my problem.
This is the debug3 output:
joost-leks-powerbook-g4-15:~ joost$ host 10.0.0.123
123.0.0.10.in-addr.arpa domain name pointer tech.
joost-leks-powerbook-g4-15:~ joost$ ssh -v -v -v 10.0.0.123
OpenSSH_3.8.1p1, OpenSSL 0.9.7g 11 Apr 2005
debug1: Reading configuration data /Users/joost/.ssh/config
debug1: Reading configuration data /etc/ssh_config
debug2: ssh_connect: needpriv 0
debug1: Connecting to 10.0.0.123 [10.0.0.123] port 22.
debug1: Connection established.
debug1: identity file /Users/joost/.ssh/identity type -1
debug3: Not a RSA1 key file /Users/joost/.ssh/id_rsa.
debug2: keytype_fromname: unknown key type '-----BEGIN'
debug3: key_read: missing keytype
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug2: keytype_fromname: unknown key type '-----END'
debug3: key_read: missing keytype
debug1: identity file /Users/joost/.ssh/id_rsa type 1
debug3: Not a RSA1 key file /Users/joost/.ssh/id_dsa.
debug2: keytype_fromname: unknown key type '-----BEGIN'
debug3: key_read: missing keytype
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug2: keytype_fromname: unknown key type '-----END'
debug3: key_read: missing keytype
debug1: identity file /Users/joost/.ssh/id_dsa type 2
debug1: Remote protocol version 2.0, remote software version OpenSSH_3.8.1p1 Debian-8.sarge.4
debug1: match: OpenSSH_3.8.1p1 Debian-8.sarge.4 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_3.8.1p1
debug3: Trying to reverse map address 10.0.0.123.
reverse mapping checking getaddrinfo for tech failed - POSSIBLE BREAKIN ATTEMPT!
debug1: An invalid name was supplied
Configuration file does not specify default realm
debug1: An invalid name was supplied
A parameter was malformed
Validation error
debug1: An invalid name was supplied
Configuration file does not specify default realm
debug1: An invalid name was supplied
A parameter was malformed
Validation error
debug1: SSH2MSGKEXINIT sent
debug1: SSH2MSGKEXINIT received
debug2: kexparsekexinit: diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1
debug2: kexparsekexinit: ssh-rsa,ssh-dss
debug2: kexparsekexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijn [email protected],aes128-ctr,aes192-ctr,aes256-ctr
debug2: kexparsekexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijn [email protected],aes128-ctr,aes192-ctr,aes256-ctr
debug2: kexparsekexinit: hmac-md5,hmac-sha1,hmac-ripemd160,[email protected],hmac-sha1-96,hmac- md5-96
debug2: kexparsekexinit: hmac-md5,hmac-sha1,hmac-ripemd160,[email protected],hmac-sha1-96,hmac- md5-96
debug2: kexparsekexinit: none,zlib
debug2: kexparsekexinit: none,zlib
debug2: kexparsekexinit:
debug2: kexparsekexinit:
debug2: kexparsekexinit: firstkexfollows 0
debug2: kexparsekexinit: reserved 0
debug2: kexparsekexinit: diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1
debug2: kexparsekexinit: ssh-rsa,ssh-dss
debug2: kexparsekexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijn [email protected],aes128-ctr,aes192-ctr,aes256-ctr
debug2: kexparsekexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijn [email protected],aes128-ctr,aes192-ctr,aes256-ctr
debug2: kexparsekexinit: hmac-md5,hmac-sha1,hmac-ripemd160,[email protected],hmac-sha1-96,hmac- md5-96
debug2: kexparsekexinit: hmac-md5,hmac-sha1,hmac-ripemd160,[email protected],hmac-sha1-96,hmac- md5-96
debug2: kexparsekexinit: none,zlib
debug2: kexparsekexinit: none,zlib
debug2: kexparsekexinit:
debug2: kexparsekexinit:
debug2: kexparsekexinit: firstkexfollows 0
debug2: kexparsekexinit: reserved 0
debug2: mac_init: found hmac-md5
debug1: kex: server->client aes128-cbc hmac-md5 none
debug2: mac_init: found hmac-md5
debug1: kex: client->server aes128-cbc hmac-md5 none
debug1: SSH2MSG_KEX_DH_GEXREQUEST(1024<1024<8192) sent
debug1: expecting SSH2MSG_KEX_DH_GEXGROUP
debug2: dhgenkey: priv key bits set: 122/256
debug2: bits set: 526/1024
debug1: SSH2MSG_KEX_DH_GEXINIT sent
debug1: expecting SSH2MSG_KEX_DH_GEXREPLY
debug3: checkhost_inhostfile: filename /Users/joost/.ssh/known_hosts
debug3: checkhost_inhostfile: match line 76
debug1: Host '10.0.0.123' is known and matches the RSA host key.
debug1: Found key in /Users/joost/.ssh/known_hosts:76
debug2: bits set: 505/1024
debug1: sshrsaverify: signature correct
debug2: kexderivekeys
debug2: set_newkeys: mode 1
debug1: SSH2MSGNEWKEYS sent
debug1: expecting SSH2MSGNEWKEYS
debug2: set_newkeys: mode 0
debug1: SSH2MSGNEWKEYS received
debug1: SSH2MSG_SERVICEREQUEST sent
debug2: service_accept: ssh-userauth
debug1: SSH2MSG_SERVICEACCEPT received
debug2: key: /Users/joost/.ssh/identity (0x0)
debug2: key: /Users/joost/.ssh/id_rsa (0x307490)
debug2: key: /Users/joost/.ssh/id_dsa (0x300ce0)
debug1: Authentications that can continue: publickey,keyboard-interactive
debug3: start over, passed a different list publickey,keyboard-interactive
debug3: preferred gssapi-with-mic,gssapi,publickey,keyboard-interactive,password
debug3: authmethod_lookup publickey
debug3: remaining preferred: keyboard-interactive,password
debug3: authmethodisenabled publickey
debug1: Next authentication method: publickey
debug1: Trying private key: /Users/joost/.ssh/identity
debug3: no such identity: /Users/joost/.ssh/identity
debug1: Offering public key: /Users/joost/.ssh/id_rsa
debug3: sendpubkeytest
debug2: we sent a publickey packet, wait for reply
debug1: Authentications that can continue: publickey,keyboard-interactive
debug1: Offering public key: /Users/joost/.ssh/id_dsa
debug3: sendpubkeytest
debug2: we sent a publickey packet, wait for reply
debug1: Authentications that can continue: publickey,keyboard-interactive
debug2: we did not send a packet, disable method
debug3: authmethod_lookup keyboard-interactive
debug3: remaining preferred: password
debug3: authmethodisenabled keyboard-interactive
debug1: Next authentication method: keyboard-interactive
debug2: userauth_kbdint
debug2: we sent a keyboard-interactive packet, wait for reply
debug2: inputuserauth_inforeq
debug2: inputuserauth_inforeq: num_prompts 1
Password:
the last line of my /etc/ssh_config:
CheckHostIP no
But the delay is still there.
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Greetings fellow Arch users,
I have hit a bit of a snag that I could really use some extra help getting around. I've tried everything I can think of (and everything that Google thought might work) and I have my back rather against a wall, so I thought I'd come here to see if anyone can offer some advice.
To make a long story short, I am a college student and am attempting to set up an ssh server on a desktop at my house so I can access it remotely from the college. I have the computer set up and the server running, however I am having difficulty making connections to it from my laptop. I know that the server is running, because I can log into it both from the server itself (sshing into local host) and from my laptop when I use the internal IP address.
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ssh -p 1500 douglas@[external ip address
As I am really not sure what is causing this problem, I don't know what information to provide. So here is everything that my inexperienced mind sees as likely being important. If you need anything more, let me know and I will do my best to provide it.
Here is the sshd_config file from my server.
# This is the sshd server system-wide configuration file. See
# sshd_config(5) for more information.
# This sshd was compiled with PATH=/usr/bin:/bin:/usr/sbin:/sbin
# The strategy used for options in the default sshd_config shipped with
# OpenSSH is to specify options with their default value where
# possible, but leave them commented. Uncommented options override the
# default value.
Port 1500
#AddressFamily any
#ListenAddress 0.0.0.0
#ListenAddress ::
# The default requires explicit activation of protocol 1
#Protocol 2
# HostKey for protocol version 1
#HostKey /etc/ssh/ssh_host_key
# HostKeys for protocol version 2
#HostKey /etc/ssh/ssh_host_rsa_key
#HostKey /etc/ssh/ssh_host_dsa_key
#HostKey /etc/ssh/ssh_host_ecdsa_key
# Lifetime and size of ephemeral version 1 server key
#KeyRegenerationInterval 1h
#ServerKeyBits 1024
# Ciphers and keying
#RekeyLimit default none
# Logging
# obsoletes QuietMode and FascistLogging
#SyslogFacility AUTH
#LogLevel INFO
# Authentication:
#LoginGraceTime 2m
PermitRootLogin no
#StrictModes yes
#MaxAuthTries 6
#MaxSessions 10
#RSAAuthentication yes
#PubkeyAuthentication yes
# The default is to check both .ssh/authorized_keys and .ssh/authorized_keys2
# but this is overridden so installations will only check .ssh/authorized_keys
AuthorizedKeysFile .ssh/authorized_keys
#AuthorizedPrincipalsFile none
#AuthorizedKeysCommand none
#AuthorizedKeysCommandUser nobody
# For this to work you will also need host keys in /etc/ssh/ssh_known_hosts
#RhostsRSAAuthentication no
# similar for protocol version 2
#HostbasedAuthentication no
# Change to yes if you don't trust ~/.ssh/known_hosts for
# RhostsRSAAuthentication and HostbasedAuthentication
#IgnoreUserKnownHosts no
# Don't read the user's ~/.rhosts and ~/.shosts files
#IgnoreRhosts yes
# To disable tunneled clear text passwords, change to no here!
#PasswordAuthentication yes
#PermitEmptyPasswords no
# Change to no to disable s/key passwords
ChallengeResponseAuthentication no
# Kerberos options
#KerberosAuthentication no
#KerberosOrLocalPasswd yes
#KerberosTicketCleanup yes
#KerberosGetAFSToken no
# GSSAPI options
#GSSAPIAuthentication no
#GSSAPICleanupCredentials yes
# Set this to 'yes' to enable PAM authentication, account processing,
# and session processing. If this is enabled, PAM authentication will
# be allowed through the ChallengeResponseAuthentication and
# PasswordAuthentication. Depending on your PAM configuration,
# PAM authentication via ChallengeResponseAuthentication may bypass
# the setting of "PermitRootLogin without-password".
# If you just want the PAM account and session checks to run without
# PAM authentication, then enable this but set PasswordAuthentication
# and ChallengeResponseAuthentication to 'no'.
UsePAM yes
#AllowAgentForwarding yes
#AllowTcpForwarding yes
#GatewayPorts no
#X11Forwarding no
#X11DisplayOffset 10
#X11UseLocalhost yes
PrintMotd no # pam does that
#PrintLastLog yes
#TCPKeepAlive yes
#UseLogin no
UsePrivilegeSeparation sandbox # Default for new installations.
#PermitUserEnvironment no
#Compression delayed
#ClientAliveInterval 0
#ClientAliveCountMax 3
#UseDNS yes
#PidFile /run/sshd.pid
#MaxStartups 10:30:100
#PermitTunnel no
#ChrootDirectory none
#VersionAddendum none
# no default banner path
#Banner none
# override default of no subsystems
Subsystem sftp /usr/lib/ssh/sftp-server
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#Match User anoncvs
# X11Forwarding no
# AllowTcpForwarding no
# ForceCommand cvs server
The ouptut of ip addr when run on the server:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp8s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
link/ether 00:21:9b:3a:be:94 brd ff:ff:ff:ff:ff:ff
inet 192.168.0.75/24 brd 192.168.255.0 scope global enp8s0
valid_lft forever preferred_lft forever
inet6 fe80::221:9bff:fe3a:be94/64 scope link
valid_lft forever preferred_lft forever
Here is the output from running nmap on the network:
Starting Nmap 6.40 ( http://nmap.org ) at 2013-09-28 21:05 EDT
Initiating Ping Scan at 21:05
Scanning address [2 ports]
Completed Ping Scan at 21:05, 0.01s elapsed (1 total hosts)
Initiating Parallel DNS resolution of 1 host. at 21:05
Completed Parallel DNS resolution of 1 host. at 21:05, 0.05s elapsed
Initiating Connect Scan at 21:05
Scanning pa-addresss.dhcp.embarqhsd.net (address) [1000 ports]
Discovered open port 80/tcp on address
Discovered open port 443/tcp on address
Discovered open port 23/tcp on address
Discovered open port 21/tcp on address
Completed Connect Scan at 21:05, 4.08s elapsed (1000 total ports)
Nmap scan report for pa-address.dhcp.embarqhsd.net (address)
Host is up (0.036s latency).
Not shown: 995 closed ports
PORT STATE SERVICE
21/tcp open ftp
23/tcp open telnet
80/tcp open http
443/tcp open https
8080/tcp filtered http-proxy
Read data files from: /usr/bin/../share/nmap
Nmap done: 1 IP address (1 host up) scanned in 4.19 seconds
Here is the ssh_config client-side:
# $OpenBSD: ssh_config,v 1.27 2013/05/16 02:00:34 dtucker Exp $
# This is the ssh client system-wide configuration file. See
# ssh_config(5) for more information. This file provides defaults for
# users, and the values can be changed in per-user configuration files
# or on the command line.
# Configuration data is parsed as follows:
# 1. command line options
# 2. user-specific file
# 3. system-wide file
# Any configuration value is only changed the first time it is set.
# Thus, host-specific definitions should be at the beginning of the
# configuration file, and defaults at the end.
# Site-wide defaults for some commonly used options. For a comprehensive
# list of available options, their meanings and defaults, please see the
# ssh_config(5) man page.
# Host *
# ForwardAgent no
# ForwardX11 no
# RhostsRSAAuthentication no
# RSAAuthentication yes
# PasswordAuthentication yes
# HostbasedAuthentication no
# GSSAPIAuthentication no
# GSSAPIDelegateCredentials no
# BatchMode no
# CheckHostIP yes
# AddressFamily any
# ConnectTimeout 0
# StrictHostKeyChecking ask
# IdentityFile ~/.ssh/identity
# IdentityFile ~/.ssh/id_rsa
# IdentityFile ~/.ssh/id_dsa
# Port 22
Protocol 2
# Cipher 3des
# Ciphers aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc
# MACs hmac-md5,hmac-sha1,[email protected],hmac-ripemd160
# EscapeChar ~
# Tunnel no
# TunnelDevice any:any
# PermitLocalCommand no
# VisualHostKey no
# ProxyCommand ssh -q -W %h:%p gateway.example.com
# RekeyLimit 1G 1h
Output of ssh -v during connection attempt:
OpenSSH_6.3, OpenSSL 1.0.1e 11 Feb 2013
debug1: Reading configuration data /home/douglas/.ssh/config
debug1: Reading configuration data /etc/ssh/ssh_config
debug2: ssh_connect: needpriv 0
debug1: Connecting to address [address] port 1500.
debug1: connect to address address port 1500: Connection refused
ssh: connect to host address port 1500: Connection refused
Thank you guys ahead of time. Getting this server operational is hardly critical, it is just a side project of mine, but I would really like to see it working.
Douglas Bahr Rumbaugh
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douglas ~ $ ssh -vvv -p 2000 address
OpenSSH_6.3, OpenSSL 1.0.1e 11 Feb 2013
debug1: Reading configuration data /home/douglas/.ssh/config
debug1: Reading configuration data /etc/ssh/ssh_config
debug2: ssh_connect: needpriv 0
debug1: Connecting to address [address] port 2000.
debug1: connect to address address port 2000: Connection timed out
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<script id="ncoEventScript" type="text/javascript">function DOMContentLoaded(browserID, tabId, isTop, url) { var object = document.getElementById("cosymantecnisbfw"); if(null != object) { object.DOMContentLoaded(browserID,
tabId, isTop, url);} }; function Nav(BrowserID, TabID, isTop, isBool, url) { var object = document.getElementById("cosymantecnisbfw"); if(null != object) object.Nav(BrowserID, TabID, isTop, isBool, url); }; function NavigateComplete(BrowserID, TabID,
isTop, url) { var object = document.getElementById("cosymantecnisbfw"); if(null != object) object.NavigateComplete(BrowserID, TabID, isTop, url); } function Submit(browserID, tabID, target, url) { var object = document.getElementById("cosymantecnisbfw");
if(null != object) object.Submit(browserID, tabID, target, url); }; </script>Thank you for responding. As I stated in my original post the reason I went through this process was because of an extremely slow internet connection from both the WLAN and LAN connections on my G53SW. At that time I had all of the correct drivers on the
machine. Whilst I would agree that with the machine only having a video and WLAN driver it may well not be working 'optimally', the rationale for doing this was to get the machine working with the minimum of processes to show that it was not anti-virsu software,
Steam or the like causing interference.
I have changed out both of the HDDs this evening (a primary SSD and a secondary 1Tb HDD) for a clean hybrid 1Tb Seagate drive. Once I have installed all of the Asus drivers (and nothing else) I will try the speed test again and report back.
I can now report that with a fresh install of Windows 7 Ultimate SP1 and ONLY Asus drivers as supplied the issue remains. On a connection where I should see around 75mbps I am actually getting around 18mbps, sometimes considerably slower. This only affects
my Asus machine.
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tabId, isTop, url);} }; function Nav(BrowserID, TabID, isTop, isBool, url) { var object = document.getElementById("cosymantecnisbfw"); if(null != object) object.Nav(BrowserID, TabID, isTop, isBool, url); }; function NavigateComplete(BrowserID, TabID,
isTop, url) { var object = document.getElementById("cosymantecnisbfw"); if(null != object) object.NavigateComplete(BrowserID, TabID, isTop, url); } function Submit(browserID, tabID, target, url) { var object = document.getElementById("cosymantecnisbfw");
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My macbook pro 13in is slow to connect
Hello,
My Macbook pro is slow to connect to the internet, even though the wifi is at all five bars. This happens at my home, and sometimes at work. At work, the internet is at all five bars, and everyone else's macbook, macbook air, pc connects fine, but mine does not. Can someone help me?Hello anashakeka,
After reviewing your post, I have located an article that can help in this situation. It contains a number of troubleshooting steps and helpful advice concerning network issues:
Wi-Fi: How to troubleshoot Wi-Fi connectivity
http://support.apple.com/kb/HT4628
Learn how to troubleshoot Wi-Fi network connectivity issues on your Mac.
Thank you for contributing to Apple Support Communities.
Cheers,
BobbyD -
[SOLVED] Problem with adding a SSH connection to startup
Hi guys. I have a problem with adding ssh connection to startup. i want this command to run before kde login screen and keep running all time.
ssh -D 9292 remoteuser@remotehost
but it doesnt connect. Thanks for help!
Last edited by alperenel (2011-03-11 00:10:27)cactus wrote:
ssh -fN -D 9292 remoteuser@remotehost
you need -f, which sends ssh to the background, and -N which does not execute a remote command.
If you need it to run as a user other than root, then you probably need to utilize su as well.
it didnt work either. i am putting it in rc.local but doesnt work. -
I have had Windows Server 2012 Essentials setup and running now for over 12 months and have been using the Remote Web Access to share certain files with our employees. When using the RWA you can download files in seconds without issue.
I recently wanted to setup a VPN connection to the server so that I could remote manage the server if needed rather than have to go to the office all the time. I added the role on the server, forwarded port 1723 as needed whilst at the office. Then at home
created a VPN connection on my Windows 7 PC. The VPN connects very quickly without issue but when trying to do anything the lag is very slow. On the laptop I used the cmd prompt so I could ping the server to see what was going on, i get a lot of time outs
when doing anything, even when trying to just open a folder that is also shared by RWA and opens without issue.
If i use Remote Desktop it just constantly times out and closes, so cant do anything.
It appears this is just a VPN issue as RWA works perfectly. Any ideas as to what would cause this?Hi,
Regarding the current issue, I suggest we could refer to the following similar thread to see if it helps. Please follow the suggestions Tiger provided in the thread.
Slow VPN Connection to Windows Server 2008
http://social.technet.microsoft.com/Forums/en-US/3e68223a-26d8-4f39-a476-e7092c44afd9/slow-vpn-connection-to-windows-server-2008?forum=winserversecurity
In addition, here is an article about how to troubleshoot VPN slowness issue.
Why is something so slow over a VPN connection?
http://projectdream.org/wordpress/2007/03/20/why-is-something-so-slow-over-a-vpn-connection/
Hope it helps.
Best Regards,
Andy Qi
Andy Qi
TechNet Community Support -
Slower internet connection when connection wireless network
Currently using a Linksys WRT54GL wireless broadband (firmware v4.30.5) router in conjunction with a Thomson Speedtouch 546i ADSL router (ISP provided).
My problem is that when I connect to the internet over the wireless network I experience a much slower internet connection in comparison with when I use a tp-cable.
Tested with various online "speed-tests" (I know they are not to be trusted, but they do give a basis for comparison):
Over wireless network : ca.6000kbits/sec.
Direct cable from pc to router (tested on both routers):12-13000kbits/sec.
Hope anyone has any idea what the problem may be, and any help is greatly appreciated.Change the beacon to 50 ....and reduce the RTS and the fragmentation by 40 each.....these options are found under the advanced wireless settings...
Also make sure that u have the latest drivers installed for the Wireless NIC. -
Prime 4.2 Telnet/ SSH Connections to Switches
Hi everybody,
I have a problem with LMS 4.2 and use Telnet/ SSH tool to open network devices.
If I start the tool telnet/ssh, always starts a telnet session and no ssh session.
But telnet is disabled on all devices in my network. Can I change something to open automatically a ssh session with putty?
regards BjoernHi Bjoern,
I am assuming you refer to the Device Center > Tools > Telnet/SSH option.
The problem is not on LMS actually. What happens is that in the background, a telnet:// is being called.
What will happen is that your system will launch whatever application has been assigned to the telnet protocol, typically the Windows CMD, which will open a telnet session automatically.
In order to change this to use Putty for example, which would allow you to change to SSH connectivity (manually though) you can do the following:
1) BACKUP YOUR REGISTRY.
Go to Start > Run > Regedit > File > Export.
2) Locate the following key:
HKEY_CLASSES_ROOT > Telnet > shell > Open > command > (default)
3) Modify the key value to point to the location of your "putty.exe" file (make sure to include the double quotes).
Default value:
"C:\Windows\System32\rundll32.exe" "C:\Windows\System32\url.dll",TelnetProtocolHandler %l
New value (will open putty automatically to the selected IP):
"D:\Tools\putty.exe" %l
New value (will open putty normally, you will need to type the IP but can change the connection protocol/port if desired):
"D:\Tools\putty.exe"
This should make your system open Putty for any "telnet://" links, including the Telnet/SSH link in the Tools section of Device Center.
Best regards,
Luis
Message was edited by: Luis Jimenez
Message was edited by: Luis Jimenez -
WiFi *really* slow to connect on wake
I recently moved to a new neighborhood and now my wifi is really slow to connect when I open up my MacBook from sleep mode.
My old place had other networks in the vicinity, but about half as many as there are available at my new place.
Either way, its really becoming a pain, as I have become very used to opening my MacBook and being instantly online.
I have power cycled my router and modem and done everything short of resetting the firmware.
I am using a standard Linksys WRT-54G and it's served me fine for years, as has this MacBook.
Any ideas on how to remedy this?
Nejat
Message was edited by: nugxHow long is this "really slow"? Several minutes?
You may want to look through System Preferences>Network and take a look at the "advanced" options for Airport. Might be worth clearing out all preferred networks and get those reset.
~Lyssa -
I am having problems with a very slow internet connection, that seems to be getting slower.
Currently we have a DSL Modem connected to a LinkSys DSL Router connected to an Airport Extreme. We have been using this setup for several years.
We run 2-4 laptops of various types...MacBook, MacBook Pro, and 1 Windows. Today, I can hardly get my MacBook to go anywhere.
I went up to my iMac G5 and plugged in the ethernet directly to a port in the router and did a DSL speed test through my ISP and it came back as 4.4 Mbps, about the same as it has since I upgraded speeds last fall.
I then disconnected the ethernet and switched back to wireless, and ran the same test. This time is came back 775 Kbps.
Any suggestions? Thanks!I am assuming that you are still having the issue with network performance, or at least it has not stabilized.
I would still think Wi-Fi interference to be the potential issue and suggest that you pursue this a bit farther ... if you don't mind.
Again, I would suggest downloading a copy of iStumbler. Use iStumbler's Inspector feature (select Edit > Inspector from iStumbler's menu) to determine the Signal-to-Noise Ratio (SNR) at different points around your house, by performing a simple RF site survey. Within the Inspector, note the values for "signal" & "noise" at these locations. Start with your MacBook near the base station, note the readings, and then, choose the locations where you will typically use your MacBook to access the Internet.
SNR is the signal level (in dBm) minus the noise level (in dBm). For example, a signal level of -53dBm measured near an access point and typical noise level of -90dBm yields a SNR of 37dB, a healthy value for wireless LANs.
The SNR, as measured from the MacBook, should decrease as the range to the base station increases because of applicable free space loss. Also an increase in RF interference from microwave ovens and cordless phones, which increases the noise level, also decreases SNR.
SNR Guideline
o 40dB+ SNR = Excellent signal
o 25dB to 40dB SNR = Very good signal
o 15dB to 25dB SNR = Low signal
o 10dB to 15dB SNR = Very low signal
o 5dB to 10dB SNR = No signal
If the SNR is 20dB+ at each of these locations, then you should be getting reasonable performance from your AirPort. If less, either try to locate the source of the Wi-Fi interference or try relocating either the base station or the wireless clients until they are within a 20dB SNR range. -
Very slow to connect to apex 4.1
i have installed apex 4.1 on port 7777
and sometimes resul very slow to connect.
someone know i i can resolve the probelm ??We have approximately the same problem, sometime APEX 4.1 is very slow. But we haven't change the default port.
-
Ipfilter reload rules - how it impac the current SSH connection?
Hi,
I login to another solaris 10 system thru SSH, and change the ipfilter rultes in /etc/ipf/ipf.conf, generally as follows;
- flush all the existing rules (not the state table)
- reload the rules from cfg file
I've sometimes my SSH connection is not impacted, but sometimes it can hange for a while, and a couple CR hits could bring it back...
Anybody can explain how this part of ipfilter works internally? I suppose if the state table is flushed out, the SSH connection would definitely be shut-down?
ThanksSeems that the problem was because my J2E app was running in a tomcat servlet container as a service. The service user account was set to the local service account. Plink was looking for its public key in CURRENT_USER (i.e. local service user) and not finding it.
I've added the required registry settings to the default user in the registry and these get picked up by the local system user.
Hey presto - plink can connect! -
SSH connections not logged on wtmpx
Hello,
which patch enables ssh to log connections to wtmpx?
Actually the "last" command only shows login data about assigned pts, but if i
connect using:
ssh -T root@sunbox
no record is logged on wtmpx. Also the "w" and "last" command doesn't show
the user root as logged in, while... it is.
I checked on solaris 10 and this issue is fixed, as ssh connections are logged
apart from the terminal allocation.
Someone know wich patch is needed on solaris 9 to solve this problem?
Thank you in advance
RobertHello,
which patch enables ssh to log connections to wtmpx?
Actually the "last" command only shows login data about assigned pts, but if i
connect using:
ssh -T root@sunbox
no record is logged on wtmpx. Also the "w" and "last" command doesn't show
the user root as logged in, while... it is.
I checked on solaris 10 and this issue is fixed, as ssh connections are logged
apart from the terminal allocation.
Someone know wich patch is needed on solaris 9 to solve this problem?
Thank you in advance
Robert
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