troubleshooting network settings

Kevin Kinsey kdk at daleco.biz
Mon May 29 06:37:47 PDT 2006


Malcolm Fitzgerald wrote:
> 
> On 29/05/2006, at 1:10 PM, Kevin Kinsey wrote:
> 
>> Malcolm Fitzgerald wrote:
>>> I am running freeBSD v6.0 security on a home network behind an adsl 
>>> router. I cannot connect to localhost from a browser (apache is running!)
>>> I cannot connect to localhost port 22 (KPackage tries to use ssh)
>>> What can cause these problems? How can I troubleshoot them?
>>> I am very new to freeBSD, so part of my question is "where do I 
>>> begin?". I have a copy of Complete freeBSD beside me but can't get 
>>> the magical incantations right. Suggestions appreciated.
>>
>> New to "Nix like" systems in general, or just new to FreeBSD?
>>
>> Here are a few suggestions ... no "magic bullet" here, though:
>>
>> First, check to see if the interface exists:
>>
>> $ ifconfig lo0
>> lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
>>         inet6 ::1 prefixlen 128
>>         inet6 fe80::1%lo0 prefixlen 64 scopeid 0x4
>>         inet 127.0.0.1 netmask 0xff000000
>>
>> So, we have a loopback interface (in this case on both IPv4
>> and IPv6).
> 
> bsd-box# ifconfig -a
> rl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>         options=8<VLAN_MTU>
>         inet6 fe80::2e0:4cff:fe08:e02a%rl0 prefixlen 64 scopeid 0x1
>         inet 192.168.1.104 netmask 0xffffff00 broadcast 192.168.1.255
>         ether 00:e0:4c:08:e0:2a
>         media: Ethernet autoselect (100baseTX <full-duplex>)
>         status: active
> plip0: flags=108810<POINTOPOINT,SIMPLEX,MULTICAST,NEEDSGIANT> mtu 1500
> lo0: flags=8008<LOOPBACK,MULTICAST> mtu 16384

Hmm, is that all?  Unusual; I'd think the loopback _should_ be set
up correctly.

`ifconfig lo0 -inet 127.0.0.1 netmask 255.255.255.0`  ??


If that fixes it, then we have to figure out *why* it's not being
doing automatically.  Problem during init/rc, most likely ... weird.

KDK


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