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I'm running a Debian server through a router on my home network. My server's hostname is yuuko, but my router thinks it's named computer-2. I also can't ping outside the network (pinging the router and computers by hostname works fine but pinging google.com fails), yet I can access the Internet without issue. I don't have any iptables rules yet. Here is the ifconfig output:

eth0      Link encap:Ethernet  HWaddr 00:0c:76:5f:e1:a2  
          inet addr:  Bcast:  Mask:
          inet6 addr: fe80::20c:76ff:fe5f:e1a2/64 Scope:Link
          RX packets:5462 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2505 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:487573 (476.1 KiB)  TX bytes:335956 (328.0 KiB)
          Interrupt:23 Base address:0xe400 

lo        Link encap:Local Loopback  
          inet addr:  Mask:
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:36 errors:0 dropped:0 overruns:0 frame:0
          TX packets:36 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:2640 (2.5 KiB)  TX bytes:2640 (2.5 KiB)
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