all pseudo ttys busy, AIX 5.2


 
Thread Tools Search this Thread
Operating Systems AIX all pseudo ttys busy, AIX 5.2
# 1  
Old 07-07-2009
all pseudo ttys busy, AIX 5.2

I have several users connecting via a Windows-based SSH\telnet client. The previous sysadmin used FacetTerm to allow certain users to switch between multiple "windows." I'm told there are AIX-native ways to do this but I work with what I inherited.

Originally, many users were still connecting via telnet. I know this isn't usually a big risk on a private network but I'd still prefer SSH for the encryption. However, the users that have been switched to SSH have to be very careful about how they end the session. If they simply disconnect or close the client without logging off, they are unable to log back in. Here's a specific example:

Code:
/dev/ptyqd: Permission denied                
Assigned pty cannot be opened.
All pseudo ttys are busy.

I've tried killing processes associated with their username but that doesn't seem to free them up. So far, the only successful fix has been a reboot. I'm comfortable on the command line but I'm a long, long way from a real expert and, in particular, I'm clueless when it comes to anything dealing with ttys. Any input at all will be a help and an education.
# 2  
Old 07-07-2009
Hello lacroix,

Did you tried increasing number of pseudo ttys??

If no, please try to increase number of pseudo ttys by "smit chgpty"


Hope this will help you.....Smilie
# 3  
Old 07-07-2009
Now that I think about it, both the title and my explanation are probably misleading.

Each user is assigned specific ttys. If they don't log out properly, it is *only* their ttys that are busy. I think "Assigned pty cannot be opened." is the informative part of the error.
# 4  
Old 07-07-2009
Hmmm,
looks like accounting info got out if sync...
man fwtmp

All the best
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. AIX

Need to know %age disk busy on AIX

Hi , Following alerts are coming for %busy device on a server Disk Device hdisk5 is 100% busy Please assist how do I analyse this and also how do I check the %age busy for hdisk5. Best regards, Vishal (4 Replies)
Discussion started by: Vishal_dba
4 Replies

2. UNIX for Dummies Questions & Answers

Pseudo Terminal

How can i view what my colleague is doing in the terminal pts/1 while i have logged into terminal pts/2 ?? Both have remotely logged in via ssh. (4 Replies)
Discussion started by: proactiveaditya
4 Replies

3. UNIX for Advanced & Expert Users

Filesystem mystery: disks are not busy on one machine, very busy on a similar box

Hi, We have a filesystem mystery on our hands. Given: 2 machines, A and Aa. Machine Aa is the problem machine. Machine A is running Ubuntu, kernel 2.6.22.9 #1 SMP Wed Feb 20 08:46:16 CST 2008 x86_64 GNU/Linux. Machine Aa is running RHEL5.3, kernel 2.6.18-128.el5 #1 SMP Wed Dec 17 11:41:38... (2 Replies)
Discussion started by: mschwage
2 Replies

4. UNIX for Dummies Questions & Answers

Difference between console and ttys

Sometimes when I open up the terminal (like just now) it says Last login: Wed Jun 17 07:29:25 on console sometimes it says ttys (like when I exit and open a new window/tab). What's the difference? and is something fishy going on? (6 Replies)
Discussion started by: Straitsfan
6 Replies

5. UNIX for Advanced & Expert Users

Need pseudo connectivity

Hi All, I have putty on my system (Vista). I need some server details to login via internet for my personnel practice. Can any body help me out. In case this not feasible, just let me know any other way to work with UNIX terminal on Windows Vista itself. Please help me since i am desparately... (3 Replies)
Discussion started by: vikas_kesarwani
3 Replies

6. Solaris

what is /devices/pseudo/ ??

Hi all, what does this mean? if then <something> fi here is what i know.. it checks if the specified argument no($devid) in some function call is made into a block device and then proceeds with the execution of the loop. However am not understand what lofi@0:means? also is there... (3 Replies)
Discussion started by: wrapster
3 Replies

7. Solaris

pseudo: [ID 129642 kern.info] pseudo-device: vol0

Hi I have a system that gave me some messages on bootup that I was not used to seeing: pseudo: pseudo-device: vol0 genunix: vol0 is /pseudo/vol@0 these came with these: Feb 13 17:42:17 system1 eri: SUNW,eri0 : 100 Mbps full duplex link up Feb 13 17:42:21 system1sendmail: My unqualified... (0 Replies)
Discussion started by: mndavies
0 Replies

8. UNIX for Advanced & Expert Users

Dead pseudo-ttys

We are having a problem on an AIX 4.3 system, whereby users somehow exit the system in a way such that their process continues to run. In the who listing, the user may or may not be listed. Processes are still listed in ps, and are still assigned to the pseudo-tty. Processes continue to... (1 Reply)
Discussion started by: markat2k
1 Replies

9. Programming

Pseudo Terminals

I need to spawn a number of foreground process by reading a configuration file. Each process needs some form of I/O. Hence I need to run it on different terminals. How it can be done programatically , i.e. , my module needs to find which terminal is not in use, then open it, execute the process... (2 Replies)
Discussion started by: S.P.Prasad
2 Replies

10. UNIX for Dummies Questions & Answers

ttys.. i must be doing something wrong..

SCO Unix OpenServer 5 I have this old impact printer that prints invoices, after about 15 pages it becomes misaligned. ditty -a ttya04 shows -ixon -ixoff -ixany, which is not the right setting.. so, i type ditty /dev/ttya04 ixon ixoff -ixany when i ditty -a ttya04 again, the... (2 Replies)
Discussion started by: LowOrderBit
2 Replies
Login or Register to Ask a Question