Dear my collegues... I have SuSE Linux 8.1 with SuSEfirewall2, BIND 8, ip-masquerading and squid server. This server use ISDN dial up to arcor (www.arcor.de). Everything runs properly, I have opened "53 3128 67 25 110". But after sometimes than my LAN User can not surfing to internet anymore but they still can use e-mail (pop and smtp) properly.I don't know when the problem comes, lookslike after our ISP reset/change the IP number of our ISDN card (I guess so). The LAN user can go to the internet only after I restart my SuSEfirewall, such as: " SuSEfirewall2 stop SuSEfirewall2 start " Thank you very much. ps. If I start my SuSEfirewall2 than comes this error message: " proxy:~ # SuSEfirewall2 start Warning: FW_SERVICE_DNS defined, but no DNS server found running! proxy:~ # " __________________________________________________ Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, more http://taxes.yahoo.com/