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Date:      Sun, 16 Oct 2011 14:31:59 GMT
From:      John Blazek <freebsd.org@logicalsolutns.com>
To:        freebsd-gnats-submit@FreeBSD.org
Subject:   misc/161710: SSHD starts on boot even if  sshd_enable="NO" in 8.2
Message-ID:  <201110161431.p9GEVxRg094601@red.freebsd.org>
Resent-Message-ID: <201110161440.p9GEe779012915@freefall.freebsd.org>

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>Number:         161710
>Category:       misc
>Synopsis:       SSHD starts on boot even if  sshd_enable="NO" in 8.2
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Oct 16 14:40:07 UTC 2011
>Closed-Date:
>Last-Modified:
>Originator:     John Blazek
>Release:        8.2-RELEASE-p4
>Organization:
>Environment:
[root@kahlua]:[~]# uname -a
FreeBSD kahlua.logicalsolutns.com 8.2-RELEASE-p4 FreeBSD 8.2-RELEASE-p4 #7: Wed Oct  5 07:33:04 CDT 2011     root@kahlua.logicalsolutns.com:/usr/obj/usr/src/sys/KAHLUA  i386
[root@kahlua]:[~]#

>Description:
After upgrading from 7.3 to 8.2, I found errors in my /var/log/message file indicating that inetd had a conflict.

(We run inetd to handle ssh on this machine).

After investigating I discovered that all of my 8.2 boxes are starting SSHD even though /etc/rc.conf has  sshd_enable="NO"

To diagnose the issue, I added   sshd_flags="-p 9991" to rc.conf and rebooted

The system booted with sshd running on port 9991

[root@kahlua]:[/usr/src]# sockstat | grep sshd
root     sshd       37697 3  tcp6   *:9991                *:*
root     sshd       37697 4  tcp4   *:9991                *:*

I then ran the /usr/sbin/sshd command and sshd also started on port 2220 (which is what is set in /etc/ssh/sshd_config

[root@kahlua]:[/usr/src]# /usr/sbin/sshd
[root@kahlua]:[/usr/src]# sockstat | grep sshd
root     sshd       17757 3  tcp6   *:2220                *:*
root     sshd       37697 3  tcp6   *:9991                *:*
root     sshd       37697 4  tcp4   *:9991                *:*

(Note: inetd was running tcp4 on *:2220 per /etc/rc.conf and inetd.conf)

If I've done something wrong on my end, I don't know what it is. It appears that this same issue is impacting all of my 8.2 boxes.
>How-To-Repeat:
[root@kahlua]:[~]# cat /etc/rc.conf | grep sshd
# sshd is controlleb by inetd
sshd_enable="NO"
sshd_flags="-p 9991"
[root@kahlua]:[~]#


/etc/ssh/sshd_config

#Port 22
Port 2220
#Protocol 2
#AddressFamily any
#ListenAddress 0.0.0.0
#ListenAddress ::


ps axu | grep sshd
root  37697  0.0  0.8  6712  4036  ??  Is    9:08AM   0:00.00 /usr/sbin/sshd -p 9991

>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted:



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