Solved: make sure that libnss-mdns is installed!
I'm having trouble using SSH'ing from my netbook to my desktop using a .local hostname. Every so often, I have to reset the router I use, which resets the addresses it give out to my devices, so a while ago I set up Avahi to get around this*. The /etc/avahi/services/ssh.service file is the standard one copied from the documentation:
<?xml version="1.0" standalone='no'?><!--*-nxml-*--> <!DOCTYPE service-group SYSTEM "avahi-service.dtd"> <!-- See avahi.service(5) for more information about this configuration file --> <service-group> <name replace-wildcards="yes">%h</name> <service> <type>_ssh._tcp</type> <port>22</port> </service> </service-group>
This used to work fine, but now for some reason when I try to ssh from my netbook to my desktop, I get the following error message (note I changed my pc's hostname in this output):
user@netbook>> ssh pc.local -vvv OpenSSH_6.2p2 Ubuntu-6ubuntu0.3, OpenSSL 1.0.1e 11 Feb 2013 debug1: Reading configuration data /home/username/.ssh/config debug1: Reading configuration data /etc/ssh/ssh_config debug1: /etc/ssh/ssh_config line 19: Applying options for * debug2: ssh_connect: needpriv 0 ssh: Could not resolve hostname pc.local: Name or service not known
I can ssh from my netbook to my PC when I put in the IP address manually, and when I've set up /etc/hosts correctly (so the daemon on my PC is working fine), it only stops working when I try to use the .local address. SSH'ing in the other direction (PC->netbook) works fine, even when using a .local hostname. Avahi also appears to be working fine:
user@netbook>> avahi-browse -a -t+ + wlan0 IPv6 netbook SSH Remote Terminal local + wlan0 IPv6 netbook [<MAC address>] Workstation local + wlan0 IPv6 netbook Remote Disk Management local + wlan0 IPv4 netbook SSH Remote Terminal local + wlan0 IPv4 netbook [<MAC address>] Workstation local + wlan0 IPv4 netbook Remote Disk Management local + wlan0 IPv4 pc SSH Remote Terminal local + wlan0 IPv4 pc [<MAC address>] Workstation local + wlan0 IPv4 pc Remote Disk Management local + wlan0 IPv6 pc SSH Remote Terminal local + wlan0 IPv6 pc [<MAC address>] Workstation local + wlan0 IPv6 pc Remote Disk Management local
The netbook is running Lubuntu 13.10; note that I did change to Lubuntu recently, and I only recall seeing this error with Lubuntu and not with plain Ubuntu. My desktop is running Ubuntu 13.10.
Any help would be appreciated!
*I am aware that can set up my router to permanently give set addresses to both devices, and I will do that if I can't resolve this issue, but I'd prefer to try and fix this rather than work around it.
ETA: Pinging the PC from the netbook with the .local hostname doesn't work (unknown host) .
Edit 2: Contents of
# /etc/nsswitch.conf # # Example configuration of GNU Name Service Switch functionality. # If you have the `glibc-doc-reference' and `info' packages installed, try: # `info libc "Name Service Switch"' for information about this file. passwd: compat group: compat shadow: compat hosts: files mdns4_minimal dns [NOTFOUND=return] mdns4 networks: files protocols: db files services: db files ethers: db files rpc: db files netgroup: nis