Greetings., ---------------------------------1 st thing.------------------------------------------------ [root@www root]# ping www.sina.com ping: unknown host www.sina.com ------------------------------------------------------------------ look this indicate error have to possbile valid reason either t your dns which u configured that is not working or u did not configure dns in your /etc/reslove.conf use your favorite editor like vi and open file /etc/reslove.conf and add like nameserver YOUR_NAME_SERVER_IP if u dont know how to use vi editor than give command like echo " YOUR_NAMESERVER_IP >> /etc/reslove.conf doing this try to ping www.sina.com it must reslove. using dns which u r using in linux..got it. ... -----------------------------------------2nd things----------------------------------------------------- >>[root@www root]# ping 210.xx.xx.xx >>PING 210.xx.xx.xx (210.xx.xx.xx) from 210.xx.xx.xx : 56(84) bytes of data. >>>From 210.xx.xx.xx icmp_seq=1 Packet filtered >>>From 210.xx.xx.x x icmp_seq=2 Packet filtered >>>From 210.xx.xx.xx icmp_seq=3 Packet filtered >>>From 210.xx.xx.xx icmp_seq=4 Packet filtered >>>From 210.xx.xx.xx icmp_seq=5 Packet filtered ---------------------------------------------------------------------------------------------------------------- if u r using ipchains /sbin/ipchains -F or iptable /sbin/iptables- F After... his reslut indicate your gatway end there router or machine is filtering ICMP traffic. try to ping www.yahoo.com and check it.. otherwise there will not be any issue. kindly paste /sbin/route -n out put so we will get idea also... On Sat, 4 Sep 2004 14:23:27 +0200, Michael Schwendt <fedora@xxxxxxxxxxxxxxxxx> wrote: > On Fri, 03 Sep 2004 16:34:32 +0300, Crucificator wrote: > > > >>My computer's OS is Red Hat Linux7.3,I can ping this Linux computer > > > >Post the unmodified output of the following commands to add some > > >details: > > > > > > cat /etc/resolv.conf > > > netstat -nr > > > /sbin/ifconfig -a > > > > > >Also describe what steps you did to configure your network. > > > > > > > > > > > > > > iptables -L wont hurt, too... :) > > Then /sbin/ipchains-save, please, since the machine is running Valhalla, > and ipchains -L would not be as readable. Btw, iptables-save would also > print the rules for all tables in case the machine has been converted > to using iptables/netfilter. > > -- > Fedora Core release 1 (Yarrow) - Linux 2.4.22-1.2199.nptl > loadavg: 0.26 0.22 0.14 > > > > > -- > redhat-list mailing list > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > https://www.redhat.com/mailman/listinfo/redhat-list > -- Vipul Ramani linux2000in@xxxxxxxxx linux2000in@xxxxxxxxx ~~~~~We Know HOW NetWorkS ~~~~~ -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list