Mail Service and ssh lagging
Hello,
I am having a trouble with our mail server.
Through out the day our mail server has been acting funny, it will stop receiving e-mail for small amount of time then start again. OR it will go on "thinking mode" for 1-2 minutes while sending.
The client with get this message when the mail server decided to "stuck" or "think".
----
Alert
There may be a problem with the mail server or network. Check the setting for account or try again.
The server error encountered was: The connection to the server on port 110 time out.
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When the mail server get stuck I will not able to open new ssh. But the connected ssh will be able to browse around. BUT mailq will go into stuck mode too it'll take 3 minutes to display 4 queued messages...
Here's what the secure.log looks like
Nov 20 16:13:04 students sshd[7403]: fatal: Timeout before authentication for xxx.xxx.xxx.xxx
Nov 20 16:13:48 students sshd[7454]: Did not receive identification string from xxx.xxx.xxx.xxx
Nov 20 16:13:48 students sshd[7455]: Did not receive identification string from xxx.xxx.xxx.xxx
Nov 20 16:14:04 students sshd[7438]: fatal: Timeout before authentication for xx.xxx.xxx.xx
Nov 20 16:14:04 students sshd[7439]: fatal: Timeout before authentication for xx.xxx.xxx.xx
Nov 20 16:15:49 students sshd[7468]: fatal: Timeout before authentication for xx.xxx.xxx.xx
Nov 20 16:15:49 students sshd[7469]: fatal: Timeout before authentication for xx.xxx.xxx.xx
Nov 20 16:17:25 students sshd[7541]: reverse mapping checking getaddrinfo for dsl-162.n-chelny.ru failed - POSSIBLE BREAKIN ATTEMPT!
Nov 20 16:17:25 students sshd[7542]: reverse mapping checking getaddrinfo for dsl-162.n-chelny.ru failed - POSSIBLE BREAKIN ATTEMPT!
Nov 20 16:17:34 students sshd[7491]: fatal: Timeout before authentication for xxx.xx.x.xxx
Nov 20 16:17:34 students sshd[7492]: fatal: Timeout before authentication for xxx.xx.x.xxx
The system.log looks like this:
Nov 20 16:16:28 students postfix/smtpd[7507]: auxpropfunc error no mechanism available\n
Nov 20 16:16:28 students servermgrd: TIME-CHECK: NSLXStandardRegisterService took 106.078815 seconds!\n
Nov 20 16:16:30 students pop3[7504]: login: mail.nese.com [xx.xx.xx.xx] harrybudiman plaintext User logged in
Nov 20 16:16:30 students pop3[7495]: login: mail.nese.com [xx.xx.xx.xx] housing plaintext User logged in
Nov 20 16:16:30 students pop3[7498]: login: mail.nese.com [66.92.90.38] michelleduval plaintext User logged in
Nov 20 16:16:30 students pop3[7497]: login: h-67-101-123-170.cmbrmaor.dynamic.covad.net [67.101.123.170] greenhall plaintext User logged in
Nov 20 16:16:30 students pop3[7496]: login: pool-151-203-107-247.bos.east.verizon.net [151.203.107.247] greenhallmanager plaintext User logged in
Nov 20 16:16:30 students pop3[7500]: login: 189-68-234-220.dsl.telesp.net.br [xxx.xx.xxx.xxx] vbellim plaintext User logged in
Nov 20 16:16:47 students postfix/smtpd[7120]: warning: xxx.xxx.xxx.xx: hostname 190-178-128-33.speedy.com.ar verification failed: Host not found
What is happening here? and how can I solve this?
I'd really appreciate some advice and help here 🙂
Thank you!
Jeanny
I am having a trouble with our mail server.
Through out the day our mail server has been acting funny, it will stop receiving e-mail for small amount of time then start again. OR it will go on "thinking mode" for 1-2 minutes while sending.
The client with get this message when the mail server decided to "stuck" or "think".
----
Alert
There may be a problem with the mail server or network. Check the setting for account or try again.
The server error encountered was: The connection to the server on port 110 time out.
----
When the mail server get stuck I will not able to open new ssh. But the connected ssh will be able to browse around. BUT mailq will go into stuck mode too it'll take 3 minutes to display 4 queued messages...
Here's what the secure.log looks like
Nov 20 16:13:04 students sshd[7403]: fatal: Timeout before authentication for xxx.xxx.xxx.xxx
Nov 20 16:13:48 students sshd[7454]: Did not receive identification string from xxx.xxx.xxx.xxx
Nov 20 16:13:48 students sshd[7455]: Did not receive identification string from xxx.xxx.xxx.xxx
Nov 20 16:14:04 students sshd[7438]: fatal: Timeout before authentication for xx.xxx.xxx.xx
Nov 20 16:14:04 students sshd[7439]: fatal: Timeout before authentication for xx.xxx.xxx.xx
Nov 20 16:15:49 students sshd[7468]: fatal: Timeout before authentication for xx.xxx.xxx.xx
Nov 20 16:15:49 students sshd[7469]: fatal: Timeout before authentication for xx.xxx.xxx.xx
Nov 20 16:17:25 students sshd[7541]: reverse mapping checking getaddrinfo for dsl-162.n-chelny.ru failed - POSSIBLE BREAKIN ATTEMPT!
Nov 20 16:17:25 students sshd[7542]: reverse mapping checking getaddrinfo for dsl-162.n-chelny.ru failed - POSSIBLE BREAKIN ATTEMPT!
Nov 20 16:17:34 students sshd[7491]: fatal: Timeout before authentication for xxx.xx.x.xxx
Nov 20 16:17:34 students sshd[7492]: fatal: Timeout before authentication for xxx.xx.x.xxx
The system.log looks like this:
Nov 20 16:16:28 students postfix/smtpd[7507]: auxpropfunc error no mechanism available\n
Nov 20 16:16:28 students servermgrd: TIME-CHECK: NSLXStandardRegisterService took 106.078815 seconds!\n
Nov 20 16:16:30 students pop3[7504]: login: mail.nese.com [xx.xx.xx.xx] harrybudiman plaintext User logged in
Nov 20 16:16:30 students pop3[7495]: login: mail.nese.com [xx.xx.xx.xx] housing plaintext User logged in
Nov 20 16:16:30 students pop3[7498]: login: mail.nese.com [66.92.90.38] michelleduval plaintext User logged in
Nov 20 16:16:30 students pop3[7497]: login: h-67-101-123-170.cmbrmaor.dynamic.covad.net [67.101.123.170] greenhall plaintext User logged in
Nov 20 16:16:30 students pop3[7496]: login: pool-151-203-107-247.bos.east.verizon.net [151.203.107.247] greenhallmanager plaintext User logged in
Nov 20 16:16:30 students pop3[7500]: login: 189-68-234-220.dsl.telesp.net.br [xxx.xx.xxx.xxx] vbellim plaintext User logged in
Nov 20 16:16:47 students postfix/smtpd[7120]: warning: xxx.xxx.xxx.xx: hostname 190-178-128-33.speedy.com.ar verification failed: Host not found
What is happening here? and how can I solve this?
I'd really appreciate some advice and help here 🙂
Thank you!
Jeanny
Mac OS X (10.4)
