Category Archives: Administrative

SSH Problems

OK, so I’ve upgraded my laptop to Fedora 15, and want to restore the backup, but I can’t ssh into it. Here’s what happens:

[simberg@linux-host ~]$ ping 192.168.0.105
PING 192.168.0.105 (192.168.0.105) 56(84) bytes of data.
64 bytes from 192.168.0.105: icmp_req=1 ttl=64 time=0.250 ms
64 bytes from 192.168.0.105: icmp_req=2 ttl=64 time=0.243 ms
64 bytes from 192.168.0.105: icmp_req=3 ttl=64 time=0.225 ms
64 bytes from 192.168.0.105: icmp_req=4 ttl=64 time=0.261 ms
^C
— 192.168.0.105 ping statistics —
4 packets transmitted, 4 received, 0% packet loss, time 3001ms
rtt min/avg/max/mdev = 0.225/0.244/0.261/0.023 ms
[simberg@linux-host ~]$ ssh 192.168.0.105
ssh: connect to host 192.168.0.105 port 22: No route to host
[simberg@linux-host ~]$

So I can ping it, but it won’t connect. I’ve installed opensshd on the laptop, I’ve enabled it, and the firewall has port 22 open. I can also ssh into it from a terminal on the machine (e.g., ssh localhost or ssh 192.168.0.105), but not from another computer on the network. Any ideas?

Ethernet Bleg

So I’m backing up my laptop in preparation for an upgrade from Fedora 13 to 15, and I notice that the data transfer speed is only about half a meg per second. Here is the output of ‘ethtool eth0’:

Settings for eth0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Advertised pause frame use: No
Advertised auto-negotiation: Yes
Link partner advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Link partner advertised pause frame use: No
Link partner advertised auto-negotiation: Yes
Speed: 100Mb/s
Duplex: Full
Port: MII
PHYAD: 0
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: pumbg
Wake-on: g
Current message level: 0x00000033 (51)
drv probe ifdown ifup
Link detected: yes

Any ideas what the problem is?