Re: peculiar problem: ping works, but cannot browse. Need help of network gurus.
From: HS (g_reatexcali_bur_at_yahoo.com)
Date: 07/25/03
- Next message: Ronny Roethof: "bgp and iptables ?"
- Previous message: HS: "Re: peculiar problem: ping works, but cannot browse. Need help of network gurus."
- In reply to: HS: "peculiar problem: ping works, but cannot browse. Need help of network gurus."
- Next in thread: H. S.: "problem SOLVED. Was Re: peculiar problem: ping works, but cannot browse. Need help of network gurus."
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
Date: Fri, 25 Jul 2003 15:21:37 -0400
Since I can browse the web with IP addresses, but not with domain names.
Bill Unruh suggested (in a reply to my earlier post on networking newsgroup)
that there could be a problem with my resolv.conf. I am not sure how to
solve this. Any suggestions?
Could somebody, who has adsl model through ppp0 and eth0, post their config
files and /etc/sysconfig/network and /etc/resolv.conf so that I may see what
is wrong on my side?
Also, for network gurus:
Aren't these the *only* files that matter while trying to connect through
adsl modem using eth0? :
/etc/sysconfig/network
/etc/resolv.conf
/etc/sysconfig/network-scripts/ifcfg-eth0
/etc/sysconfig/network-scripts/ifcfg-ppp0
Thanks for all help,
->HS
HS wrote:
> Hi,
>
> I have posted a coupel of messages earlier today and
> yesterday(comp.os.linux.networking), but no response yet :( Really, Is
> my problem beyond solution?
>
> I have been fiddling with the problem myself and have some more
> information.
>
> In short, at present, I can ping outside world through my ppp0
> (connected to eth0) but I cannot browse. The problem started when I
> installed a new NIC and configured it using the Redhat GUI. After this
> configuration, everything seemed to get screwed up. I guess the GUI
> overwrites some configuration files (eg /sbin/sysconfig/network ?).
>
> Now, I took out the second nic, and I am tryin go get the things as they
> were originally, with ppp0 connected to eth0 (Bell Sympatico HSE). But
> for the world of me, I cannot get it to work. I even tried removing the
> original NIC, so that I could install it anew. But that didn't work
> either.
>
> Some of my config fies I have given below. /sbin/ifconfig -a works, and
> shows ppp0, lo and eth0. I am really worried now, I would really
> appreciate some help. If nothing else, at least I would like to know how
> to uninstall the NIC I have and reintall it from scratch, in the hope
> that that would work.
>
> There is also another peculiar thing: yesterday I tried to change my
> hostname, by changing the entry in /etc/hosts and in
> /etc/sysconfig/network. Now I have changed those back to
> localhost.localdomain. But when i try to login, Gnome says that it
> cannot find IP address associated with the host name. Is this is a
> relevant symptom? How to solve this problem?
>
> Here is additional info if it helps:
>
> >> /sbin/route -n
> Kernel IP routing table
> Destination Gateway Genmask Flags Metric Ref Use
> Iface
> 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0
> lo
>
> >> /sbin/ifup ppp0
>
> >> /sbin/route -n
> Kernel IP routing table
> Destination Gateway Genmask Flags Metric Ref Use
> Iface
> 65.94.113.1 0.0.0.0 255.255.255.255 UH 0 0 0
> ppp0
> 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0
> lo
> 0.0.0.0 65.94.113.1 0.0.0.0 UG 0 0 0
> ppp0
>
> I can ping google(and I tied some other sites, successfully, too):
>
> >> ping 216.239.53.100
> PING 216.239.53.100 (216.239.53.100) from 65.94.113.196 : 56(84) bytes
> of data.
> 64 bytes from 216.239.53.100: icmp_seq=1 ttl=51 time=118 ms
> 64 bytes from 216.239.53.100: icmp_seq=2 ttl=51 time=115 ms
> 64 bytes from 216.239.53.100: icmp_seq=3 ttl=51 time=114 ms
>
> --- 216.239.53.100 ping statistics ---
> 3 packets transmitted, 3 received, 0% loss, time 2028ms
> rtt min/avg/max/mdev = 114.350/116.018/118.285/1.684 ms
>
> Here are my config files:
> ****************************
> [root@localhost tmp]# cat /etc/sysconfig/network
> NETWORKING=yes
> #HOSTNAME=localhost.localdomain
> HOSTNAME=localhost.localdomain
> ****************************
> [root@localhost tmp]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
> DEVICE=eth0
> ONBOOT=no
> BOOTPROTO=dhcp
> USERCTL=no
> PEERDNS=no
> TYPE=Ethernet
> **************************** the IPs in resolv.conf are for Bell
> Sympatico HSE
> [root@localhost tmp]# cat /etc/resolv.conf
> # MADE-BY-RP-PPPOE
> nameserver 209.226.175.223
> nameserver 198.235.216.134
> ****************
> [root@localhost tmp]# cat /etc/hosts
> # Do not remove the following line, or various programs
> # that require network functionality will fail.
> #127.0.0.1 parlo.home.pvt localhost
> 127.0.0.1 localhost.localdomain localhost
> ****************************
> [root@localhost tmp]# cat /etc/sysconfig/network-scripts/ifcfg-ppp0
> USERCTL=yes
> BOOTPROTO=dialup
> NAME=DSLppp0
> DEVICE=ppp0
> TYPE=xDSL
> ONBOOT=no
> PIDFILE=/var/run/pppoe-adsl.pid
> FIREWALL=NONE
> PING=.
> PPPOE_TIMEOUT=360
> LCP_FAILURE=3
> LCP_INTERVAL=80
> CLAMPMSS=1412
> CONNECT_POLL=6
> CONNECT_TIMEOUT=60
> DEFROUTE=yes
> SYNCHRONOUS=no
> ETH=eth0
> PROVIDER=DSLppp0
> USER=<my user name here>
> PEERDNS=no
>
> Thanks,
> ->HS
> --
> ##----------
> Remove all the underscores from my email address to get the correct
> email. Sorry for inconvenience, but this is to reduce spam.
> ##----------
-- ##---------- Remove all the underscores from my email address to get the correct email. Sorry for inconvenience, but this is to reduce spam. ##----------
- Next message: Ronny Roethof: "bgp and iptables ?"
- Previous message: HS: "Re: peculiar problem: ping works, but cannot browse. Need help of network gurus."
- In reply to: HS: "peculiar problem: ping works, but cannot browse. Need help of network gurus."
- Next in thread: H. S.: "problem SOLVED. Was Re: peculiar problem: ping works, but cannot browse. Need help of network gurus."
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
Relevant Pages
|
