With "-t XXX" you select the TABLE to modify/view To display the forward-chain you can just do iptables -t filter -nvL FORWARD
("-t filter" is default and can be left out) For example, to make uml reach the outside world and protect uml against connections from outside you would do iptables -I FORWARD 1 -m state --state ESTABLISHED,RELATED -j ACCEPT iptables -I FORWARD 2 -i <TAP-INTERFACE> -s 192.168.0.0/24 -j ACCEPT There is a good tutorial to iptables at frozentux.net: http://iptables-tutorial.frozentux.net/iptables-tutorial.html To at least see, if the umls do any ns-lookups at all you can use tcpdump on the host: tcpdump -n -i tapX udp port 53 as root. Be sure to specify the right tap-interface. Greets, Chris Am 26.06.2006 um 17:31 schrieb paul john: > thank you guys all. > > 2006/6/26, Christian Bockermann <[EMAIL PROTECTED]>: What's /etc/ > resolv.conf look like in your UML? You have to specify a > name server here. > Does your FORWARD-chain allow udp 53 from 192.168.0.0/24 to the > > is this forward-chain of host ? i don't know how to ? iptables > -t FORWARD.... ,please give a practical command. > > nameservers you have in /etc/resolv.conf? > > yes the resolv.conf has the same nameserver . in host ,ping domain > name ok, in uml ,it can't . > > Greets, > Chris > > Am 26.06.2006 um 15:52 schrieb paul john: > > > in host , i use "iptables -t nat -A POSTROUTING -s 192.168.0.0/24 - > > j MASQUERADE" to enable umls accessing the world . but can't > > resolve domain name , if you just give a ip , in umls can ping out > > the world .but if give a domain name , can't , i don't know what's > > problem . > > please . > > > > > > -- > > skype id (flourishing21633) > > [EMAIL PROTECTED] > > Using Tomcat but need to do more? Need to support web services, > > security? > > Get stuff done quickly with pre-integrated technology to make your > > job easier > > Download IBM WebSphere Application Server v.1.0.1 based on Apache > > Geronimo > > http://sel.as-us.falkag.net/sel? > > cmd=lnk&kid=120709&bid=263057&dat=121642 > > _______________________________________________ > > User-mode-linux-user mailing list > > User-mode-linux-user@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user > > > > > -- > skype id (flourishing21633) > [EMAIL PROTECTED] > Using Tomcat but need to do more? Need to support web services, > security? > Get stuff done quickly with pre-integrated technology to make your > job easier > Download IBM WebSphere Application Server v.1.0.1 based on Apache > Geronimo > http://sel.as-us.falkag.net/sel? > cmd=lnk&kid=120709&bid=263057&dat=121642 > _______________________________________________ > User-mode-linux-user mailing list > User-mode-linux-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ User-mode-linux-user mailing list User-mode-linux-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user