topic Re: Weird FTP problem in Operating System - HP-UX

Weird FTP problem

Jeff_Traigle — Fri, 29 Jul 2005 15:27:19 GMT

This one makes no sense to me...

Yesterday afternoon, I disabled telnet and other unnecessary services in inetd.conf on an HP-UX 11.00 system. I found out this afternoon that FTP hasn't been working since then. (Connection times out.) Experimenting a little bit revealed that if I re-enabled telnet, FTP started working again. The other two systems we've patched in the past week or two and disabled telnet on do not exhibit this behavior. (Though different class machines, 11.00 is running on all of them and now have the same patches.) I even tried copying the inetd.conf from one of these other systems just in case there was some weird hidden character playing with us, but the result is the same.

Anyone ever seen this kind of thing before? Any ideas?

Re: Weird FTP problem

RAC_1 — Fri, 29 Jul 2005 16:08:36 GMT

First error messsages, what are those??

You should have ftpd -l and inetd logging enabled. Do you have /etc/shells files??

Anil

Re: Weird FTP problem

A. Clay Stephenson — Fri, 29 Jul 2005 16:58:12 GMT

Although you didn't specifically state this, my best guess is that you commented out the /etc/services entry at the same time that you disabled ftpd in /etc/rc.config.d/inetd.conf. ftpd should have nothing to do with the ftp client.

Re: Weird FTP problem

A. Clay Stephenson — Fri, 29 Jul 2005 17:00:22 GMT

2nd off the wall guess: You actually get your services map from NIS/NIS+/LDAP and you disabled one of those at the same time.

Re: Weird FTP problem

Jeff_Traigle — Sat, 30 Jul 2005 16:44:38 GMT

Hmmm... actually, it seems the problem was that inetd needed to be restarted instead of simply rereading the configuration. Discovered this when I killed it and ran with -l option for logging. It worked right away then. Weird.

Re: Weird FTP problem

D Block 2 — Sat, 30 Jul 2005 20:54:48 GMT

Jeff, glad to hear you are doing fine now.

one rule is to turn on (or toggle) logging:

# inetd -l
# tail -f /var/adm/syslog/syslog.log

on another terminal window, do your ftp'ing testing.. and verify what syslog shows.

my 2-cents,
Tom