Telnet/ssh connection takes a lot of time.


 
Thread Tools Search this Thread
Operating Systems Solaris Telnet/ssh connection takes a lot of time.
# 1  
Old 11-06-2008
Telnet/ssh connection takes a lot of time.

We have three Oracle instances running on our Sun-Blade-T6300.
Telnet or SSH connection to one of the instance (or to user oramach) takes a lot of time whether using putty or SecureCRT but connection to any other user is very fast. Any idea what may be causing this slow connection to this particular user?

=========
SunOS s56kb1 5.10 Generic_125100-10 sun4v sparc SUNW,Sun-Blade-T6300
=========

Thanks!
# 2  
Old 11-06-2008
Try "su - oramach" as root and see if it takes a long time as well?

Might be something in the .profile for your oracle user or so...
# 3  
Old 11-06-2008
su - oramach ... goes pretty fast, so .profile should not be an issue. Any other thoughts?

Thanks!
# 4  
Old 11-07-2008
I'm not sure...

Is it only slow when connecting and after that it's fast? Or are all the commands slow for that user, even after you're connected?
# 5  
Old 11-07-2008
I'm pretty sure Solaris will try to resolve the IP address of the incoming connection before proceeding. If it can't resolve it then it will wait for however long it takes for the nslookup to time out. This could explain the delay in the connection. Check your resolv.conf and other dns related things. Or if you're always connecting from the same ip address, you could put that address in your hosts file.
Or then again , I could be completely wrong...
This User Gave Thanks to omegad22 For This Post:
# 6  
Old 11-09-2008
Usually when ssh/telnet does not respond in a timely fashion, then it is usually pointing to the network configuration.

Check:
1. netmask
2. network speed and plex settings on both NIC and Switch side
3. switch side lost or request for duplicate packets
4. Return route between the client and server, if there are 2 routes which are taken then it is routing issue on your server or router end.

-GGR
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Ssh script to validate ssh connection to multiple serves with status

Hi, I want to validate ssh connection one after one for multiple servers..... password less keys already setup but now i want to validate if ssh is working fine or not... I have .sh script like below and i have servers.txt contains all the list of servers #/bin/bash for host in $(cat... (3 Replies)
Discussion started by: sreeram4
3 Replies

2. Shell Programming and Scripting

Timeout to abolish ssh connection command it takes too long

Hi, I am running a ssh connection test in a script, how can I add a timeout to abolish the process if it takes too long? ssh -i ~/.ssh/ssl_key useraccount@computer1 Thank you. - j (1 Reply)
Discussion started by: hce
1 Replies

3. AIX

AIX_timeout_thread using lot of cpu time

Hi, i am seeing some strange things on a lpar which we have at this moment. With nmon i see a process aix_timeout_thread which is using lots of cpu (70-80%, all cpu which is "free" is used). This is a kernel process (for as far i can find out) but i am wondering what is causing this to happen... (5 Replies)
Discussion started by: aixvinnie
5 Replies

4. UNIX for Advanced & Expert Users

How keep running a program n an another computer via a connection ssh when the connection is closed?

Hi everybody, I am running a program on a supercomputer via my personal computer through a ssh connection. My program take more than a day to run, so when I left work with my PC I stop the connection with the supercomputer and the program stop. I am wondering if someone know how I can manage... (2 Replies)
Discussion started by: TomTomGre
2 Replies

5. AIX

Telnet or rsh takes too much time

telnet or rsh or ftp to an AIX machine takes too much time, like have to wait 3 minutes before the prompt appears. What can I look to troubleshoot this problem thanks (4 Replies)
Discussion started by: filosophizer
4 Replies

6. Red Hat

Login to server takes time

When I am trying to login to a server using Putty ssh from my windows xp machine it is taking too much time for login. My server name is http2 and when I enter this address into putty I immediately get login as: screen, but after I put my username root and enter the cursor moves downwards... (14 Replies)
Discussion started by: abhilashkrishn
14 Replies

7. UNIX for Advanced & Expert Users

command taking lot of time to execute

Hi, I am running the following command, and it tries to delete some dn from ldap, however, it takes lot of time before it finally request LDAP server to delete it. I am trying to find why it is taking lot of time. Could you anyone help me in this regard. I have copies the pstack output, and... (3 Replies)
Discussion started by: john_prince
3 Replies

8. Shell Programming and Scripting

sort takes a long time

Dear experts I have a 200MG text file in this format: text \tab number I try to sort using options -fd and it takes very long! is that normal or I can speed it up in some ways? I dont want to split the file since this one is already splitted. I use this command: sort -fd file >... (12 Replies)
Discussion started by: voolek
12 Replies

9. Solaris

takes time to connect my application

getting delayed to connect to my database in solaris Does anyone help me to get out of this issue help will be more appreciated. (2 Replies)
Discussion started by: Gods_help
2 Replies

10. Shell Programming and Scripting

find command takes a lot of time ( can I skip directories)

I have a file called "library" with the following content libnxrdbmgr.a libnxrdbmgr.so libnxtk.a libnxtk.so libora0d_nsc_osi.so I am trying to locate if these libraries are on my machine or not. find command runs for about few seconds and hangs after this. Can someone please help me and... (3 Replies)
Discussion started by: knijjar
3 Replies
Login or Register to Ask a Question