[stunnel-users] Reverse DNS lookup in stunnel log possible?

Sun Jul 28 08:34:33 CEST 2013

Hello,
Not particularly demanding on that matter,
but if it is slower, could that be an option in the conf file : 
LogReverseDNS=yes/no ?

Anyway, even in that case, there will be an extra charge to stunnel...

Regards
Pierre

Le 27/07/2013 02:28, Brian Wilkins a écrit :
> It is slower because it would have to do a DNS lookup for every IP. 
> Sure, it could be cached but its just informational.
>
> On Friday, July 26, 2013, mkanet at yahoo.com <mailto:mkanet at yahoo.com> 
> wrote:
>
>     The benefit would be the added convenience of seeing meaningful
>     DNS names instead of numeric IPs for those that prefer this.  The
>     added load on stunnel would be trivial for reverse dns lookups on
>     separate process threads.
>
>     -----------------
>     What would be the benefit? It would slow stunnel down.
>     On Jul 26, 2013 5:47 PM, "mkanet at yahoo.com <javascript:_e({},
>     'cvml', 'mkanet at yahoo.com');>" <mkanet at yahoo.com
>     <javascript:_e({}, 'cvml', 'mkanet at yahoo.com');>> wrote:
>     Thanks, I guess I could do the equivalent with a batch file; but,
>     was really hoping for buitin support for this in stunnel.  It
>     would be nice to see in the upcoming 5.00 release as an option.
>     -----------------
>     Don't know on windows, but did a little test with a script to get
>     the hostnames. First did a test using you records, and then used
>     my current stunnel.log
>     script stlog.chk
>     ==================
>     grep -Eo '([0-9]{1,3}\.){3}[0-9]{1,3}' /var/log/stunnel.log | sort
>     | uniq
>     >stout
>     echo "" >stout2
>     for a in `cat stout` ; do
>     echo -n $a " ">>stout2;
>     host $a | awk '{print $5}' >>stout2;
>     done
>     The results of stout2 are
>     127.0.0.1 localhost.
>     173.194.74.108 qe-in-f108.1e100.net <http://qe-in-f108.1e100.net/>.
>     173.194.74.109 qe-in-f109.1e100.net <http://qe-in-f109.1e100.net/>.
>     192.168.128.201 3(NXDOMAIN)
>     74.125.25.108 pa-in-f108.1e100.net <http://pa-in-f108.1e100.net/>.
>     74.125.25.109 pa-in-f109.1e100.net <http://pa-in-f109.1e100.net/>.
>     Probable would want to add some code to filter out private address.
>     Final step would be to scan original log and add the name on
>
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>
>
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