topic Re: telnet / Local Flow Control Off in Operating System - HP-UX

telnet / Local Flow Control Off

Kevin_194 — Mon, 08 Mar 2004 07:21:30 GMT

Hi Experts,

I try to telnet a HP-UNIX-Client but I get this Error:

Trying...
Escape character is '^]'.
Local flow control off
Connection closed by foreign host.

I get the telnet on the other Clients, which hast the same NW-Area.

Thanks for advice
Kevin

Re: telnet / Local Flow Control Off

Karthik S S — Mon, 08 Mar 2004 07:24:58 GMT

1. restart inetd on that client.

if that doesn't work,

2. From console of that client try running "insf -e" and telnet again.

-Karthik S S

Re: telnet / Local Flow Control Off

Mark Grant — Mon, 08 Mar 2004 07:39:19 GMT

Sounds to me like you don't have telnet defined in /etc/inetd.conf. Have a look at it and see if you have ane entry that is not commented out that looks like this

telnet stream tcp nowait root /usr/lbin/telnetd telnetd

Also, check you are not being refused by /var/adm/inetd.sec

Re: telnet / Local Flow Control Off

Kevin_194 — Mon, 08 Mar 2004 08:21:25 GMT

Hi Karthink and Mark,

thanks for reply. It seems everything is OK, but still telnet dosen't work.

Kevin

Re: telnet / Local Flow Control Off

Karthik S S — Mon, 08 Mar 2004 08:24:45 GMT

Are you able to do a ftp to that box? Do you see any error messages related to telnet in syslog.log??

-Karthik S S

Re: telnet / Local Flow Control Off

Kevin_194 — Mon, 08 Mar 2004 08:41:34 GMT

Hi Karthink,

FTP works.
Wenn I start a Telnet i get in syslog.log:

Cannot allocate pty

Kevin

Re: telnet / Local Flow Control Off

RAC_1 — Mon, 08 Mar 2004 08:45:03 GMT

What is yout npty kernel parameter setting? Check it as follows.

kmtune -lq npty. (You need to be root for this.) Compare this no. with following command.

ll /dev/pty/*|wc -l.

Anil

Re: telnet / Local Flow Control Off

Kevin_194 — Mon, 08 Mar 2004 09:18:33 GMT

Hi RAC,

I have the command kmtune not in this client:
HP-UX 10.20

ll /dev/pty/*|wc -l.
60

Kevin

Re: telnet / Local Flow Control Off

Fabio Ettore — Mon, 08 Mar 2004 09:26:31 GMT

Hi Kevin,

try the following command:

# insf -d pty -n 150

It will build new pty files and telnet already should work.
Then you should change npty and nstrpty to 150 and after reboot for kernel rebuilding

# rm /dev/pty/*
# rm /dev/ptym/*
# cd /dev
# insf -d pty -n 150

I hope this helps you.

Best regards,
Ettore

Re: telnet / Local Flow Control Off

Kevin_194 — Mon, 08 Mar 2004 09:37:58 GMT

Thank you all. It works.

Re: telnet / Local Flow Control Off

Ramesh_csc — Thu, 10 Mar 2016 15:21:23 GMT

it worked for me , i run insf -e from server console ,

now i am able to telnet server ,

thankyou very much...Ramesh Bhagat