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  #1 (permalink)  
Old 04-16-2009
CRGreathouse CRGreathouse is offline
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KVPNC destroys internet connection
I was using my computer normally, then started up kvpnc to remote into a system. On disconnecting from kvpnc and closing the program, my internet connection would not work -- no sites loaded. Two restarts didn't help. I then opened the program and connected, which let me post this. But I don't always want to use it!

What can I do to fix this?
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Old 04-16-2009
Corona688 Corona688 is offline
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The outputs of ifconfig -a and route -n when your connection is broken would be useful.
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Old 04-23-2009
CRGreathouse CRGreathouse is offline
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Oddly, this time, I was able to load Google (but not other sites). Why might that be? That makes it seem more like a DNS issue than anything else.
Code:
charles@zed:~$ ifconfig 
eth0      Link encap:Ethernet  HWaddr 00:24:8c:04:01:e2  
          inet addr:65.43.209.162  Bcast:65.43.255.255  Mask:255.255.0.0
          inet6 addr: fe80::224:8cff:fe04:1e2/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:3674731 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3129901 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:3172444359 (3.1 GB)  TX bytes:550073505 (550.0 MB)
          Interrupt:18 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:11996 errors:0 dropped:0 overruns:0 frame:0
          TX packets:11996 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:599948 (599.9 KB)  TX bytes:599948 (599.9 KB)

charles@zed:~$ ping google.com
PING google.com (74.125.45.100) 56(84) bytes of data.
64 bytes from yx-in-f100.google.com (74.125.45.100): icmp_seq=1 ttl=245 time=39.6 ms
64 bytes from yx-in-f100.google.com (74.125.45.100): icmp_seq=2 ttl=245 time=39.8 ms
64 bytes from yx-in-f100.google.com (74.125.45.100): icmp_seq=3 ttl=245 time=38.4 ms
64 bytes from yx-in-f100.google.com (74.125.45.100): icmp_seq=4 ttl=245 time=40.3 ms
^C
--- google.com ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3014ms
rtt min/avg/max/mdev = 38.408/39.574/40.347/0.715 ms
charles@zed:~$ ping cnn.com
PING cnn.com (157.166.226.26) 56(84) bytes of data.
^C
--- cnn.com ping statistics ---
103 packets transmitted, 0 received, 100% packet loss, time 102173ms
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Old 04-23-2009
CRGreathouse CRGreathouse is offline
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Code:
charles@zed:~$ route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
65.43.0.0       0.0.0.0         255.255.0.0     U     1      0        0 eth0
0.0.0.0         65.43.223.254   0.0.0.0         UG    0      0        0 eth0
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Old 04-25-2009
Corona688 Corona688 is offline
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You may be right. That doesn't look too broken. What's in /etc/resolv.conf?
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Old 04-27-2009
CRGreathouse CRGreathouse is offline
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Code:
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
#     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 192.168.1.254
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