topic telnet / Local flow control off in Operating System - HP-UX

telnet / Local flow control off

SYSADMIN_8 — Tue, 01 Nov 2005 10:58:14 GMT

Hi,

Telnet to selfserver is not working
# uname -a
HP-UX ccewm01a B.11.11 U 9000/800 1127164723 unlimited-user license

# telnet ccewm01a.airindia.com
Trying...
Connected to ccewm01a.airindia.com
Escape character is '^]'.
Local flow control off
Connection closed by foreign host.

# telnet 127.0.0.1
Trying...
Connected to 127.0.0.1.
Escape character is '^]'.
Local flow control on
Telnet TERMINAL-SPEED option ON

HP-UX ccewm01a B.11.11 U 9000/800 (ta)
login:

and it is working.
Checked with /etc/hosts and /etc/inetd.conf and it is found ok.

can u please help me in this.

Re: telnet / Local flow control off

Mel Burslan — Tue, 01 Nov 2005 12:41:30 GMT

check to see if you have an inetd.sec and if you have, see if the source ip (self ip address) is blocked for telnet access.

Also, on a separate window, run the command

tail -f /var/adm/syslog/syslog.log

while you try the failing command to see what error message gets logges into the syslog. This only works if your inetd is running with logging option enabled. To see if you have logging enabled:

ps -ef | grep inetd

if you get something like

/usr/sbin/inetd -l

you are good. If you do not see "-l" option, then you have to stop and restart inetd with logging enabled as follows:

/usr/sbin/inetd -k
/usr/sbin/inetd -l

after that, proceed with tailing the syslog as described above. Post your findings if you can not resolve the problem for more help

HTH

Re: telnet / Local flow control off

Kent Ostby — Tue, 01 Nov 2005 13:41:16 GMT

Have you made any changes?

Added ip addresses?

Added patches?

What is your level of patching for telnetd and ARPA?