Red Hat Bugzilla – Bug 607556
funcd dies if the network is down when it starts
Last modified: 2014-01-21 18:15:36 EST
Description of problem: I'm running funcd on all the machines in my network. All the machines have funcd enabled at boot. The machines which have wired connections via Ethernet will show up when I do a func "*" ping. My laptops, however, do not, even when they are booted and connected to the network. Incidentally, my laptops connect to the network via wireless. When I log into the laptops, I find that service funcd status shows that funcd was started, but crashed. Also, if I disable the network connection on my machine, then start funcd: # service funcd status /usr/bin/funcd is not running # service funcd start Starting func daemon: # service funcd status /usr/bin/funcd is not running Once my network connection is started, I can start funcd and it will keep running, even if the network goes away and comes back. Wireless connections can sometimes take a little while to start, so I suspect what's happening is that funcd (even though it's set to run last) starts before NetworkManager has gotten the wireless interface up. I think the bug is that funcd cares that the interface is up. Version-Release number of selected component (if applicable): func-0.25-2.fc12.noarch How reproducible: 100% Steps to Reproduce: 1. Install funcd on a machine with a wireless network connection 2. Enable funcd (chkconfig funcd on) 3. Restart Alternate recipe: 1. On any machine, disable the network interface 2. service funcd start 3. service funcd status Actual results: funcd is not running, making it useless on machines with wireless connections and laptops in general (since they may start out disconnected, and then later connect). Expected results: funcd is running and pingable when the machine is up and connected to the network. Additional info:
hmm - I suspect the problem is it needs to do a name lookup to know if it knows who it is. Is your hostname for func not defined in your /etc/hosts? If you define it there does func work again?
Actually, it is, though maybe not the way it would think. On my home network, I've configured DHCP to always assign my laptop with a particular IP address by MAC (so wired & wireless will get different IPs). In my local DNS forward zone, I have: nameA.domain A IP-wireless nameB.domain A IP-wireless nameC.domain A IP-wired nameD.domain A IP-wired My hostname is nameB.domain In the reverse zone, I have: IP-wireless PTR nameA.domain IP-wired PTR nameC.domain In /etc/hosts, I have: 127.0.0.1 localhost.localdomain localhost ::1 localhost6.localdomain6 localhost6 IP-wireless nameA.domain nameB.domain nameB IP-wired nameC.domain nameD.domain nameD Kerberos works, and my ssh server ticket has host/nameA.domain@REALM as its principal. Func generated the certificate as nameA.domain.
Right so it generated nameA. when funcd loads it's looking for it's name and then for a key matching that name. If it cannot find one it is generating a new key and csr and attempting to send that to the certmaster.
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