Figuring out a headless server's zeroconf addr

[poma]

On 22.07.2014 16:43, poma wrote:
> On 22.07.2014 16:24, Robert Moskowitz wrote:
>>
>> On 07/22/2014 09:57 AM, Ed Greshko wrote:
>>> On 07/22/14 21:49, Robert Moskowitz wrote:
>>>> On 07/22/2014 09:33 AM, Ed Greshko wrote:
>>>>> On 07/22/14 21:22, Robert Moskowitz wrote:
>>>>>> But what file is this in now?  /etc/sysconfig/network-scripts is a mess now with scripts for each wifi connection and I can't find any for my ethernet adapter.
>>>>> Well, "ip link" will/should give a list of links.
>>>> ip link
>>>> 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default
>>>>        link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
>>>> 2: p6p1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN mode DEFAULT group default qlen 1000
>>>>        link/ether e8:9a:8f:8d:7b:56 brd ff:ff:ff:ff:ff:ff
>>>> 3: wlp4s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DORMANT group default qlen 1000
>>>>        link/ether ac:81:12:9c:e0:95 brd ff:ff:ff:ff:ff:ff
>>>>
>>>> But I cannot find a script file for p6p1.  Perhaps it only exists when the link is up, so where do I put this option?
>>>>
>>>>
>>> Odd.  First off, NO-CARRIER would suggest the link is not connected.  I just pulled the plug on one of my systems and I see....
>>
>> Well this is on my notebook and the ethernet was not connected at the
>> time.  So now it is plugged in via crossover to the server and link is up.
>>
>>> [egreshko at f20f ~]$ ip link
>>> 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default
>>>        link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
>>> 2: p2p1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN mode DEFAULT group default qlen 1000
>>>        link/ether 08:00:27:b7:04:4a brd ff:ff:ff:ff:ff:ff
>>>
>>> But the config file still exists.
>>>
>>> [egreshko at f20f ~]$ ls /etc/sysconfig/network-scripts/ifcfg-p2p1
>>> /etc/sysconfig/network-scripts/ifcfg-p2p1
>>
>> But still:
>>
>> ls /etc/sysconfig/network-scripts/ifcfg-p*
>> ls: cannot access /etc/sysconfig/network-scripts/ifcfg-p*: No such file
>> or directory
>>
>>
>>> Do you have access to the system to use the GUI tools of network manager?   (I'm assuming you are using nm).
>>>
>>>
>> I cannot see anyplace to specify use zeroconf if no dhcp.
>>
>> This is gnome3 on F20...
>>
>
> :)
>
> # file /etc/NetworkManager/NetworkManager.conf
> /etc/NetworkManager/NetworkManager.conf: symbolic link to `/etc/NetworkManager/conf.d/keyfile-plugin.conf'
>
> # cat /etc/NetworkManager/conf.d/keyfile-plugin.conf
> [main]
> plugins=keyfile
>
> [keyfile]
> ...
>
> # ll /etc/NetworkManager/system-connections/
> # rpm -ql NetworkManager | grep man
> # rpm -qi $(rpm -qf /usr/lib/systemd/system/avahi-daemon.service)
>

in addition
# grep ^hosts /etc/nsswitch.conf
# man 5 nsswitch.conf
http://0pointer.de/lennart/projects/nss-mdns/
# man 5 avahi.hosts
# man 5 avahi-daemon.conf

In the end it turns out that 'ZeroConf' ain't really configless. :)


poma