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тАО10-18-2007 11:31 PM
тАО10-18-2007 11:31 PM
Since Yesterday, I notice that after giving telnet IP or SSH IP - it takes long time to display login: , I mean earlier after entering Server name It used to immediately ask for login ID and then password. But, now it takes min of 2-3 minute to ask for login ID.
Where can I check, whats going wrong?
Solved! Go to Solution.
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тАО10-18-2007 11:40 PM
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тАО10-19-2007 02:53 AM
тАО10-19-2007 02:53 AM
Re: Login Process takes longer
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тАО10-19-2007 03:27 AM
тАО10-19-2007 03:27 AM
Re: Login Process takes longer
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тАО10-19-2007 06:05 AM
тАО10-19-2007 06:05 AM
Re: Login Process takes longer
Try a direct telnet from the server back to itself. Should get an immediate prompt. If not then you have system performance issues and need to start looking at CPU, MEM, DISK, etc..
Best of luck.
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тАО10-19-2007 08:55 PM
тАО10-19-2007 08:55 PM
Re: Login Process takes longer
Please advice.
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тАО10-20-2007 01:24 AM
тАО10-20-2007 01:24 AM
Re: Login Process takes longer
Did it suddenly go bad, or did it get slowly worse?
What changed? Re-boot? Patches? Security settings? Auditing?
As the others suggest, most times when I experienced delays with 'login:' prompts it has been due to network name resolution.
Make sure that works BOTH ways.
How about 'ping' response times?
By name? By number? 1st one versus the rest?
Anyway, if you experiences delays with a local login as you now indicatee (console port, telnet 0) then one must check for system overload, to rule that out (or not).
Just use 'vmstat'.
Specificaly check the free, po, sy, and id columns.
free should be several thousands, po should be 0 or low, sy less than 30, id gt 20.
If that's not the case, then it si time to whip out 'glance', 'top', swapinfo and such for futher analysis.
Share those details here when in doubt about their meaning.
Hope this helps some,
Hein van den Heuvel (at gmail dot com)
HvdH Performance Consulting
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тАО10-21-2007 02:24 PM
тАО10-21-2007 02:24 PM
Re: Login Process takes longer
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тАО10-21-2007 02:29 PM
тАО10-21-2007 02:29 PM
Re: Login Process takes longer
Did it ever work right - Yes. I am facing this problem of login slower nothing else since few days.
What changed? Re-boot? Patches? Security settings? Auditing? - Nothing is changed
As the others suggest, most times when I experienced delays with 'login:' prompts it has been due to network name resolution. --> Where are these settings? and How to verify/fix them?
How about 'ping' response times? - ping works perfect - No loss
By name? By number? 1st one versus the rest? - All ways.
Anyway, if you experiences delays with a local login as you now indicatee (console port, telnet 0) then one must check for system overload, to rule that out (or not). --> No load on system
Just use 'vmstat'. --> Here is the output, I dont understand much:
System configuration: lcpu=4 mem=15936MB
kthr memory page faults cpu
----- ----------- ------------------------ ------------ -----------
r b avm fre re pi po fr sr cy in sy cs us sy id wa
1 1 472314 428943 0 0 0 219 449 0 64 632 403 1 0 98 1
Please advice your comments and I got some info from google that such problem happens due to DNS. What is DNS? and how to verify/where/fix them?
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тАО10-21-2007 05:49 PM
тАО10-21-2007 05:49 PM
Re: Login Process takes longer
prodipas@ssydpapp007 /data/ipas/d2/ipsmk2 $ nslookup 10.68.129.57
prodipas@ssydpapp007 /data/ipas/d2/ipsmk2 $ nslookup 10.68.129.57
*** Can't find server name for address 10.68.128.1:No response from server
*** Can't find server name for address 10.72.128.1:No response from server
*** Default servers are not available
prodipas@ssydpapp007 /data/ipas/d2/ipsmk2 $
It took 75 seconds to display first line. and then 75 seconds again to display remaining output. Earlier it used to display different output , dont remember very quickly. The IP address for server , users generally connect or I used to connect is 10.68.129.57 I am not sure what is 10.68.128.1 ? Something looks to be changed as nslookup output is differnt now.
I dont see any changes made recently in this file too:
prodipas@ssydpapp007 /etc $ more resolv.conf
nameserver 10.68.128.1
nameserver 10.72.128.1
domain au.challenger.net
prodipas@ssydpapp007 /etc $ ls -lt resolv.conf
-rw-r--r-- 1 root system 71 Apr 17 2007 resolv.conf
prodipas@ssydpapp007 /etc $
Please advice ... whats going on? and whats the command to bring up DNS Servers?