[7.470][BUG][FIXED] dns resolver stop working out of sudden

hi,

In the middle of the afternoon and I suddenly couldn't go to any site. After looking further, I discovered that my system couldn't resolve dns from astaro box.

On the astaro machine itself, dns is working and nslookup does give me a result.

From packfilter log, I could see that dns request are coming to astaro:

2009:07:30-17:37:22 dmzalarm ulogd[2991]: id="2014" severity="info" sys="SecureNet" sub="packetfilter" name="DNS request" action="DNS request" fwrule="60011" seq="0" initf="eth0" outitf="unknown" dstmac="00[:D]0:68:0c:79:2e" srcmac="00:00:00:00:00:00" srcip="192.168.168.100" dstip="192.168.168.66" proto="17" length="58" tos="0x00" prec="0x00" ttl="64" srcport="59011" dstport="53"

There isn't much else in the logs aside from a snort update as I could see:

2009:07:30-16:58:54 dmzalarm snort[5770]: Snort initialization completed successfully (pid=5770)

anything else I could do to troubleshot further?