Gentoo Archives: gentoo-user

From: walt <w41ter@×××××.com>
To: gentoo-user@l.g.o
Subject: [gentoo-user] Re: plenty of strange sshd-logs... what does it mean?
Date: Tue, 22 Feb 2011 00:07:40
Message-Id: ijut9k$jem$1@dough.gmane.org
In Reply to: [gentoo-user] plenty of strange sshd-logs... what does it mean? by Jarry
1 On 02/21/2011 11:48 AM, Jarry wrote:
2 > Hi,
3 >
4 > I just noticed my /var/log/sshd.log is suddenly somehow big.
5
6 That's interesting. I have no such logfile. Did you change something
7 in /etc/ssh/sshd_config?
8
9 Oh, wait, I'm running openssh-5.8-p1, and my config file says the logging
10 configuration has eliminated the "FascistLogging" option. (Nerds are a
11 laugh a minute, eh?)
12
13 > After checking it out I have found a lot of messages like this:
14 >
15 >> 2011-02-21T03:49:21+00:00 obelix sshd[19767]: SSH: Server;Ltype:
16 >>Version;Remote: my.ip.add.ress-56254;Protocol: 2.0;Client:
17 >>OpenSSH_5.8p1-hpn13v10
18
19 >
20 > This message was recorded on 2011-02-14T17:45:24+00:00 for
21 > the first time, and since then exactly every 2 minutes.
22 > I think it was the day when I updated to openssh-5.6-p1-r2.
23
24 So, if your machine is running openssh-5.6 server, then whose machine
25 is running an openssh-5.8 client?
26
27 Could it be your cable or DSL router? I can ssh into my DSL router,
28 but it doesn't send me any traffic unless I send some first.
29
30 I'd use a sniffer like ngrep or wireshark to see who is poking at your
31 ssh port, if anyone really is.
32
33 Anyway, my sshd_config file (version 5.8) has a "LogLevel" setting.
34 In your case I'd be tempted to increase the verbosity to figure out
35 what the messages are really trying to tell you.

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