I running SuSE 7.3 Personal. I'm connected to the web via Bell Sympatico ADSL. I'm configured through YaST2. (though, I have to do su and start smpppd manually?) So far I have found that I cannot get 2 web sites, icq.com, or linuxapps.com. I have tried to the site through thier IP, still doesn't work. I have found different DNS values from Sympatico, and I still can get to these sites. Any ideas of what is going on???

Thanks,

Erik

have you tried a tracert to determine where it drops you off when trying to connect to these sites. usually its not a problem with your system, might be your ISP or beyond that.. the way its routing to the sites. I use to do support, customers couldn't get to a particular site but all others worked.. would run a tracert, if it was out of the ISP servers.. not much can be done usually.

" bash: tracert: command not found " from root ! now what ? OS=linux 7.2 , my ttl=255 . Ping works but times out on a few I try to reach. where is tracert ?
ping (thedomaininquestion.com) Packet filtered
"from www.xxx.yyy.zzz : packet filtered"
this is the node just before the site Im trying to reach. tracert from another machine (the gateway) on lan hits it just fine. 19 hops away. Th RH machine cant get it . any suggestions, if it is more than 17 hops its unreachable.
grc.com =18 hops
linuxquestions.org=17 hops
redhat.com=16 hops
yahoo.com=21 hops
google.com=17 hops

what does it mean to be "out of the ISP servers ..." The server is up , I can reach it from one machine but not the other.

As root, use "traceroute" spelled out in full. Win9x and OS/2 have shorter names (tracert and tracerte) so if you use either OS in addition to Linux you might want to add aliases.

If you have iputils probably the program is tracepath not traceroute ... I don't know Suse or Redhat because I just stay away from .rpm
Anyway #tracepath www.linuxapps.com
so you can check where packets stops.

Otherwise without more info I cant't have security but it can be a MTU problem ... see here for details http://www.tldp.org/HOWTO/IP-Masquer...tu-issues.html

"Enternet" DSL PPPoE uses an mtu of 1492 instead of mtu of 1500 as with normal ethernet. Pass the command "ifconfig eth0 mtu 1492" without he quotes of course and assuming that eth0 is your connection to the internet through your DSL gateway.

What is happening when you try to connect to some of these sites is that to get past your gateway, the packets must be fragmented to less than 1493. Some operators see fragmented packets as an attack of sorts and wont allow them to pass. thus the "packets filtered" responce from some routers. http://GRC.com happens to be a site that has been under several such attacks and fragmented packets dont reach their servers. They have the details of the attacks on their site. I changed my mtu to 1492 and I can reach the sites that were not accessible before.

This may be what is happening in your case as well