login about faq

Platform: AIX 6.1. SSH Tectia Server: 6.1.9

When logging in to a SSH Tectia Server, I can notice a gap of about 2 seconds after the process "ssh-user-fileio" process is launched.

Please, see the extract of the SSH Tectia Server log:

...
debug[651448]: 02/03/2011 15:32:48:131  SecShUserProcess/secsh_user_process_unix.c:690: argv[5] = /opt/tectia/libexec/ssh-user-fileio.  
debug[651448]: 02/03/2011 15:32:48:132  SecShUserFileOps/secsh_user_fileops.c:660: Userprocess exec succesful, process handle 2014cea8  
debug[651448]: 02/03/2011 15:32:48:133  SecShUserFileOps/secsh_user_fileops.c:686: Allocated userfile context 0x2014c8a8  
debug[651448]: 02/03/2011 15:32:48:133  SecShUserFileOps/secsh_user_fileops.c:838: operation start for 2014c8a8.  
debug[651448]: 02/03/2011 15:32:48:133  SshNioPacketWrapper/sshnio_packet_wrapper.c:815: Packet added to send queue.  
debug[651448]: 02/03/2011 15:32:49:969  SecShUserFileOps/secsh_user_fileops.c:868: operation end for 2014c8a8.  
...

asked Apr 12 '11 at 13:11

SSH%20KB's gravatar image

SSH KB ♦
509249246237

edited Apr 12 '11 at 16:09


When ssh tectia server does the fork for launching the new process, it closes all inherited file descriptors. Hosts that have "unlimited" amount of file descriptors may suffer this penalty. For the session that starts the SSH Tectia Server, Tectia recommends to specify with a given number the amount of file descriptors, do not have it set as "unlimited", as it will attempt to close all of them.

link

answered Apr 12 '11 at 14:55

SSH%20KB's gravatar image

SSH KB ♦
509249246237

Your answer
toggle preview

Follow this question

By Email:

Once you sign in you will be able to subscribe for any updates here

By RSS:

Answers

Answers and Comments

Markdown Basics

  • *italic* or __italic__
  • **bold** or __bold__
  • link:[text](http://url.com/ "title")
  • image?![alt text](/path/img.jpg "title")
  • numbered list: 1. Foo 2. Bar
  • to add a line break simply add two spaces to where you would like the new line to be.
  • basic HTML tags are also supported

Tags:

×3

Asked: Apr 12 '11 at 13:11

Seen: 1,972 times

Last updated: Apr 12 '11 at 16:09

All user contributed content licensed under the cc-by-sa license.
Powered by OSQA.