Re: My Debian box can't connect Internet

[Stephen Liu <satimis@icare.com.hk>]

Hi Paul,

Thanks for your advice.

- snip -
> 
> What happens if you try pinging 66.218.71.86 (w7.scd.yahoo.com, one of
> the servers that listens to www.yahoo.com)?

# ping -c 3 66.218.71.86 
PING 66.218.71.86 (66.218.71.86): 56 data bytes 
--- 66.218.71.86 ping statistics --- 
3 packets transmitted, 0 packets received, 100% packet loss 
 
ifconfig ppp0 
ppp0      Link encap:Point-to-Point Protocol 
          inet addr:202.123.68.108  P-t-P:202.123.71.254 
Mask:255.255.255.255 
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1492  Metric:1 
          RX packets:152 errors:0 dropped:0 overruns:0 frame:0 
          TX packets:73 errors:0 dropped:0 overruns:0 carrier:0 
          collisions:0 txqueuelen:10 
          RX bytes:10109 (9.8 KiB)  TX bytes:1932 (1.8 KiB) 

> Take a look at /sbin/ifconfig and see if eth0 is listed there, and if
> so, what the IP on it is.

# ifconfig 
eth0      Link encap:Ethernet  HWaddr 00:50:BF:70:F6:DD 
          inet addr:192.168.2.3  Bcast:192.168.2.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1 
          RX packets:804 errors:0 dropped:0 overruns:0 frame:0 
          TX packets:535 errors:0 dropped:0 overruns:0 carrier:0 
          collisions:0 txqueuelen:100 
          RX bytes:114717 (112.0 KiB)  TX bytes:96191 (93.9 KiB) 
          Interrupt:5 Base address:0xec00 
 
lo        Link encap:Local Loopback 
          inet addr:127.0.0.1  Mask:255.0.0.0 
          UP LOOPBACK RUNNING  MTU:3924  Metric:1 
          RX packets:36068 errors:0 dropped:0 overruns:0 frame:0 
          TX packets:36068 errors:0 dropped:0 overruns:0 carrier:0 
          collisions:0 txqueuelen:0 
          RX bytes:12467899 (11.8 MiB)  TX bytes:12467899 (11.8 MiB) 
 
ppp0      Link encap:Point-to-Point Protocol 
          inet addr:202.123.68.108  P-t-P:202.123.71.254 
Mask:255.255.255.255 
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1492  Metric:1 
          RX packets:347 errors:0 dropped:0 overruns:0 frame:0 
          TX packets:158 errors:0 dropped:0 overruns:0 carrier:0 
          collisions:0 txqueuelen:10 
          RX bytes:24167 (23.6 KiB)  TX bytes:3972 (3.8 KiB) 
 
sl0       Link encap:Serial Line IP 
          inet addr:192.168.0.1  P-t-P:192.168.0.2  Mask:255.255.255.255
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1492  Metric:1 
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0 
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 
          collisions:0 txqueuelen:10 
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b) 


> If that looks good, check /etc/resolv.conf and make sure there's a
> nameserver or two listed.

/etc/resolv.conf  could not be edited even as ROOT (the file can be
opened and its content can be edited.  But saving is impossible) 
 
# cat /etc/resolv.conf 
search domain.com\000 
nameserver 192.168.2.1 
 
# ls -l /etc/resolv.conf 
-rw-r--r--    1 root     root 

B.R.
Stephen