I am experiencing the following problem: I just installed a c7000 enclosure with 3 blades. They are connected to the enclosure's 2 cisco switches for the lan connection. These 2 switches have been configured by our network guys. I have installed HP-UX 11iv3 on the 3 blades, with lan0 set up as the interface. At the moment I cannot connect via ssh on lan0 on either blades, but I set up the other interfaces and I can connect on them. lan0 replies on ping, but ssh gives me the error in the subject and I cannot acces from one blade to another or from outside the enclosure.
To be more specific, the 3 blades are:
sculptor cepheus serpens
These are the network settings from one blade:
sculptor:~# lanscan Hardware Station Crd Hdw Net-Interface NM MAC HP-DLPI DLPI Path Address In# State NamePPA ID Type Support Mjr# 0/2/2/0 0x00226403921A 2 UP lan2 snap2 1 ETHER Yes 119 0/1/1/1 0x002264039219 1 UP lan1 snap1 3 ETHER Yes 119 LinkAgg0 0x00226403921B 900 UP lan900 snap900 6 ETHER Yes 119 LinkAgg1 0x000000000000 901 DOWN lan901 snap901 7 ETHER Yes 119 LinkAgg2 0x000000000000 902 DOWN lan902 snap902 8 ETHER Yes 119 LinkAgg3 0x000000000000 903 DOWN lan903 snap903 9 ETHER Yes 119 LinkAgg4 0x000000000000 904 DOWN lan904 snap904 10 ETHER Yes 119 sculptor:~# ifconfig lan900 lan900: flags=1843 inet 10.230.169.53 netmask ffff0000 broadcast 10.230.255.255 sculptor:~# ifconfig lan1 lan1: flags=1843 inet 10.230.169.7 netmask ffff0000 broadcast 10.230.255.255 sculptor:~# ifconfig lan2 lan2: flags=1843 inet 10.230.169.9 netmask ffff0000 broadcast 10.230.255.255
I am trying to connect via ssh from another blade:
cepheus:~# ssh sculptor ssh_exchange_identification: read: Connection reset by peer cepheus:~# ssh sculptor ssh: connect to host sculptor port 22: Connection refused cepheus:~# ssh 10.230.169.7 Password: sculptor:/root#exit logout root Connection to 10.230.169.7 closed.
cepheus:~# ssh 10.230.169.9 Password:
cepheus:~# ping sculptor PING sculptor..: 64 byte packets 64 bytes from 10.230.169.53: icmp_seq=0. time=0. ms 64 bytes from 10.230.169.53: icmp_seq=1. time=0. ms 64 bytes from 10.230.169.53: icmp_seq=2. time=1. ms 64 bytes from 10.230.169.53: icmp_seq=3. time=0. ms
I started another ssh daemon on port 222, on sculptor:
cepheus:~# telnet sculptor 22 Trying... Connected to sculptor... Escape character is '^]'. Connection closed by foreign host. cepheus:~# telnet sculptor 222 Trying... telnet: Unable to connect to remote host: Connection refused cepheus:~# telnet 10.230.169.7 222 Trying... Connected to 10.230.169.7. Escape character is '^]'. SSH-2.0-OpenSSH_5.2p1+sftpfilecontrol-v1.3-hpn13v5
And on sculptor I see:
debug1: Server will not fork when running in debugging mode. debug1: rexec start in 5 out 5 newsock 5 pipe -1 sock 8 debug1: inetd sockets after dupping: 3, 3 debug1: audit connection from 10.230.169.26 port 63816 euid 0 debug1: Information Ip:10.230.169.26 Port 63816 Session id:16399 af_family=2 Command=
debug1: audit_ret = 0 Connection from 10.230.169.26 port 63816 debug1: HPN Disabled: 0, HPN Buffer Size: 65536 Did not receive identification string from 10.230.169.26
If I unplumb lan1 & lan2 from cepheus and try again:
cepheus:~# ifconfig lan2 unplumb cepheus:~# ifconfig lan1 unplumb cepheus:~# telnet 10.230.169.7 222 Trying... telnet: Unable to connect to remote host: Connection timed out
And on sculptor:
Server listening on 0.0.0.0 port 222. debug1: Server will not fork when running in debugging mode. debug1: rexec start in 5 out 5 newsock 5 pipe -1 sock 8 debug1: inetd sockets after dupping: 3, 3 setsockopt SO_KEEPALIVE: Invalid argument debug1: getpeername failed: Invalid argument debug1: get_remote_port failed
This seems to be a network issue, but the network guys keep telling me they see no problem on the switch :( Any help would be greatly appreciated. Thanks guys
Re: ssh: connect to host port 22: Connection refused
> #ssh -vvv sculptor
If the complaint is "Connection refused", then I would not expect to learn much from "-v[v[v]]". "Connection refused" normally means that the client can talk to the server system, but that the particular (SSH) server program is not running/registered.
Perhaps I'm easily confused, but I see a mix of host names and IP addresses in your commands, and it's not clear to me which address goes with which name.
> LinkAgg0 [...]
I don't use this feature, so I know nothing, but ...
Re: ssh: connect to host port 22: Connection refused
Problem solved, it seems that the IPs 10.230.169.53 & 10.230.169.55 were on another station in the network, not in the DNS, and only showing up from time to time... Thank you for the assistance, points assigned.
