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Date:      Fri, 10 Oct 2003 12:03:20 -0500
From:      Redmond Militante <r-militante@northwestern.edu>
To:        freebsd-questions@freebsd.org
Subject:   weird ftp-related logcheck msgs
Message-ID:  <20031010170320.GB44852@darkpossum>

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hi all

the last couple of days, i've noticed strange security notifications sent t=
o the root user of one of my boxen.  this box is running proftpd as an ftp =
server.  the messages appear whenever somebody authenticates via ftp.  most=
 often, it's me ftp'ing to the machine, so it's probably not someone doing =
something malicious (just in case, i ran chkrootkit and yafic, which turn u=
p clean...)

the messages look like

Oct 10 11:27:06 server proftpd[45750]: server.com
+(my.box.com[129.xxx.xx.xx]) - PAM(secure): Permission denied.
Oct 10 11:17:25 server sendmail[45703]: h9AGHPbK045703: h9AGHPbL045703: DSN=
: To:... List:;
+syntax illegal for recipient addresses
Oct 10 11:17:41 server sendmail[45708]: h9AGHfPB045708: h9AGHfPC045708: DSN=
: To:... List:;
+syntax illegal for recipient addresses
Oct 10 11:18:43 server sendmail[45715]: h9AGIhBK045715: h9AGIhBL045715: DSN=
: To:... List:;
+syntax illegal for recipient addresses
Oct 10 11:19:13 server sendmail[45720]: h9AGJDEV045720: h9AGJDEW045720: DSN=
: To:... List:;
+syntax illegal for recipient addresses
Oct 10 11:19:29 server sendmail[45725]: h9AGJTMA045725: h9AGJTMB045725: DSN=
: To:... List:;
+syntax illegal for recipient addresses
Oct 10 11:19:56 server sendmail[45730]: h9AGJuBg045730: h9AGJuBh045730: DSN=
: To:... List:;
+syntax illegal for recipient addresses


i'm not sure what to make of these messages.  ftp still seems to work (fyi =
- i upgraded to the latest version of proftpd today - 1.2.8 stable, didn't =
fix the situation though), my server is=20

FreeBSD server.com 4.7-RELEASE-p23 FreeBSD 4.7-RELEASE-p23 #0: Fri Oct  3 2=
1:37:09 CDT 2003

if anyone can shed some light, i'd really appreciate it...

thanks again

redmond

--=20
FreeBSD 5.1-RELEASE-p10 FreeBSD 5.1-RELEASE-p10 #0: Fri Oct 3 21:30:51 CDT =
2003
11:45AM  up 5 days,  2:01, 2 users, load averages: 0.82, 0.51, 0.48
=20
Oh, wow!  Look at the moon!
=20

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