"refusing connections" isn't completely clear as a problem description. What
is the system actually doing that you characterize this way? That is, what
does a "refusal" look like on the machine that attempts unsuccessfully to
connect to the service?
Not knowing that, the rest of these are really wild guesses.
1. Are you running all 3 services through inetd, or are you running Web
service directly? If the first, might there be intermittant DNS-based
authentication problems?
2. What do the logs (syslogd logs for ftp and telnet, apache (I'm guessing
here) logs for http) say about example refused connections?
3. If you can check it, at a point when it is actually refusing connections,
or just afterward, what does "free" report? Might the system just be very
slow due to swapping? 32 megs isn't much for a server these days.
4. What type and speed of connection are the service requests coming in
over? Might ther be a problem with the interface?
At 09:05 PM 6/26/00 -0700, Jeff Nelson wrote:
>Hi all,
>
>I have encountered a problem that I've never seen before, so I'm hoping
>that some of you folks with more experience can give me some clues as to
>what's going on...
>
>My Linux server runs on a Pentium Pro 180 with 32MB of RAM, a 3c509
>network card, anda 2.2 GB hard drive with roughly equal / and /home
>partitions, as well as a 128MB swap partition. As of last week I was
>running Red Hat 6.1. I'm running it as a web, ftp, mail, and telnet
>server.
>
>Last week I suddenly found that it was refusing web, ftp, and telnet
>connections. (I didn't test mail connections.) However, the machine was
>still on and running. Rebooting seemed to fix the problem. Then the
>problem returned a couple of days later.
>
>Although rebooting temporarily solved this problem again, I didn't want to
>be bothered with it in the future, and being busy with other projects, I
>didn't think I would have time to do a thorough troubleshooting, and since
>I was thinking about changing to Mandrake anyway, leaving the home
>partition in place I made a fresh installation of Mandrake 6.1 and soon
>had all the previous services back working.
>
>Unfortunately, this didn't solve the problem; today it was refusing
>connections again. Most puzzling, when I came to the server room to check
>it out, it started (or had already started, possibly) working again. (All
>I did was log in as root open localhost with lynx.)
--
------------------------------------"Never tell me the odds!"---
Ray Olszewski -- Han Solo
Palo Alto, CA [EMAIL PROTECTED]
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