Hi everyone, Mi problem with 'nslookup' is kind of strange, the story is:
I've installed a Debian Sarge 3.1r2 as a gateway which is running Squid and Dansguardian for proxy and web content filtering. My internet conection is a ADSL (ppp0) link. The communication trace follows like this: To get to a web page, Web clients (i.e: 192.168.1.3) connect to Dansguardian (in 192.168.1.1:8080) which at the same time connects to Squid (127.0.0.1:3128). This setting had been worked fine for two or three weeks till yesterday. Web clients couldn't access to web pages, because web content requested never came back. I changed http proxy setting in web clients from 192.168.1.1:8080 (dansguardian) to 192.168.1.1:3128 (squid) wich didn't work. So I changed again http proxy setting in web clients from 192.168.1.1:3128 to 'Direct connection'. This time web clients could access to web sites. Searching in my Debian firewall I tried to find something that could block access to/from any port. Searching any update for Squid and Dansguardian with apt-get, I found ftp.debian.org couldn't be reached when one minute before I updated my Debian desktop (192.168.1.3). In my linux desktop I can do 'nslookup' but not in my gateway box: # nslookup ftp.debian.org ;; connection timed out; no servers could be reached I stopped iptables in gateway box to see if there was something wrong with rules, but is still the same problem. # nslookup ftp.debian.org ;; connection timed out; no servers could be reached dbfw:~# nslookup > server Default server: 200.33.146.249 Address: 200.33.146.249#53 Default server: 200.33.146.241 Address: 200.33.146.241#53 > server cancun.net nslookup: Couldn't find server 'cancun.net': Temporary failure in name resolution dbfw:~# I'm not a linux expert, but I can say there's nothing to block DNS queries. 'nslookup' doesn't seem corrupted. Any idea?, Any tip? Thanx in advance. Marinho.- -------------------------------------------------------------------- mail2web - Check your email from the web at http://mail2web.com/ .
