SSH can't connect
Jim
binarynut at comcast.net
Sat Oct 2 20:44:02 UTC 2010
On 10/02/2010 04:02 PM, Roberto Ragusa wrote:
> Jim wrote:
>> On 10/02/2010 01:11 PM, Roberto Ragusa wrote:
>>> Jim wrote:
>>>> On 10/02/2010 12:32 PM, Jim wrote:
>>>>> Wether I run NX (nomachine) or SSH I get the same error message, no
>>>>> matter what host I try to connect to.
>>>>>
>>>>> And on the host servers SSHd is running.
>>>>> And so is the Client box.
>>>>>
>>>>> Running NX
>>>>> Error message: ssh: connect to host 70.236.39.98 port 22: Connection
>>>>> timed out
>>>>>
>>>>> Running $ ssh jim at 70.236.39.98
>>>>> ErrorMessage: ssh: connect to host 70.236.39.98 port 22: Connection
>>>>> timed out
>>>>>
>>>> I forgot to add;
>>>>
>>>> These are all FC13 boxes, clients and hosts and the Firewall in each box
>>>> has SSH check as Trusted Service.
>>> Try keeping a running
>>> tcpdump -i eth0 -n -n
>>> in a different terminal before invoking ssh.
>>>
>>> You should be able to see if packets are exchanged between the machines.
>>> If you see your packets but no packet from the other machine, one of the
>>> firewalls is interfering. You can sniff on the other side too for more
>>> information.
>>>
>> Running your command I get a steady output of IP's I have never seen,
>> example below
>>
>> 14:05:10.307914 ARP, Request who-has 69.243.174.143 tell 69.243.168.1,
>> length 46
>> 14:05:10.331512 ARP, Request who-has 69.243.175.116 tell 69.243.168.1,
>> length 46
>> 14:05:10.331695 ARP, Request who-has 71.25.91.72 tell 71.25.88.1, length 46
>> 14:05:10.332746 ARP, Request who-has 69.243.175.114 tell 69.243.168.1,
>> length 46
>> 14:05:10.386862 ARP, Request who-has 69.243.170.149 tell 69.243.168.1,
>> length 46
>> 14:05:10.566254 ARP, Request who-has 69.243.174.15 tell 69.243.168.1,
>> length 46
>> 14:05:10.576918 ARP, Request who-has 73.45.175.36 tell 73.45.168.1,
>> length 46
>> 14:05:10.622413 ARP, Request who-has 69.243.174.176 tell 69.243.168.1,
>> length 46
>> 14:05:10.625877 ARP, Request who-has 73.44.155.236 tell 73.44.152.1,
>> length 46
>> 14:05:10.667900 ARP, Request who-has 69.243.175.116 tell 69.243.168.1,
>> length 46
>> 14:05:10.681633 ARP, Request who-has 69.243.175.114 tell 69.243.168.1,
>> length 46
>>
> Quite strange output: ARP requests for 69.*, 71.* and 73.* networks
> and nothing else. You only pasted 0.3 seconds of activity. Was there
> something for 70.236.39.98 when you tried to ssh?
> What kind of network connections do you have?
> Is the 70.236.39.98 machine supposed to be contacted on eth0?
>
> Would you give us some info about your network connection?
> ifconfig -a
> route -n
>
> Thanks.
# ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:1D:72:A5:DD:B5
inet addr:69.243.171.15 Bcast:69.243.175.255 Mask:255.255.248.0
inet6 addr: fe80::21d:72ff:fea5:ddb5/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:509708 errors:0 dropped:0 overruns:0 frame:0
TX packets:23265 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:59884381 (57.1 MiB) TX bytes:2849745 (2.7 MiB)
Interrupt:28 Base address:0xc000
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:153 errors:0 dropped:0 overruns:0 frame:0
TX packets:153 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:9086 (8.8 KiB) TX bytes:9086 (8.8 KiB)
# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use
Iface
69.243.168.0 0.0.0.0 255.255.248.0 U 1 0 0 eth0
0.0.0.0 69.243.168.1 0.0.0.0 UG 0 0 0 eth0
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