misc/97499: one of sshd_config options doesnot work

[Arnold Lee]

>Number:         97499
>Category:       misc
>Synopsis:       one of sshd_config options doesnot work
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri May 19 17:00:36 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator:     Arnold Lee
>Release:        Fb 6.1 release
>Organization:
SOHO
>Environment:
FreeBSD vBSD 6.1-STABLE FreeBSD 6.1-STABLE #0: Sun May 14 00:29:50 UTC 2006     root at vBSD:/usr/obj/usr/src/sys/GENERIC  i386
>Description:
I use adsl to access internet with mpd's dial on demand. In freebsd 6.0, I use the option "UseDNS no" in the /etc/ssh/sshd_config, it works ----- when I use secureCRT to login, sshd doesnot look up dns, mpd doesn't auto dial.

In another computer, I installed fb 6.1-stable with the same sshd_config. But the option "UseDNS no" has no effect! Whenever I login use securecrt, mpd will automatically dial out to internet to access the dns! What is more, the sshd versions in fb 6.0 and fb 6.1 are the same! So I think maybe there are something wrong with the operating system.
>How-To-Repeat:
edit /etc/ssh/sshd_config, change "#UseDNS yes" to "UseDNS no", and set /etc/resolv.conf properly("nameserver Your.DNS.IP.Addr"). Now login using ssh2 protocol via sshd, you can capture packets sshd sends to dns server(s).
>Fix:

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