On 03/30/2016 09:14 AM, Andrew C Aitchison wrote:
> On Wed, 30 Mar 2016, Benjamin Lefoul wrote:
>
>> Hi,
>>
>>
>> I have set monitor-connection-files=true in my 
>> /etc/NetworkManager/NetworkManager.conf
>>
>>
>> It works fine (in fact, instantly) if I edit 
>> /etc/sysconfig/network-scripts/ifcfg-eth0 with emacs or vi (for 
>> instance, changing the IP).
>>
>>
>> It fails miserably if I use sudoedit, or sed:
>
> I *think* emacs writes a new file with a different name and then 
> renames it.
> Try "ls -li /etc/sysconfig/network-scripts/ifcfg-eth0" before and 
> after editting; if the inode/inum (the number at the beginning) has 
> changed
> that is what your editor is doing, and what NetworkManager is looking 
> for.
>
>> # grep 100 /etc/sysconfig/network-scripts/ifcfg-eth0
>> IPADDR=192.168.4.100
>>
>>
>> # sed -i 's/100/155/g' /etc/sysconfig/network-scripts/ifcfg-eth0
>>
>>
>> Even though all stats (access modify and change) are renewed.
>>
>> It's worse than that: even nmcli con reload afterwards fails.
>>
>> In fact, the only way to get the ip to change is by entering the file 
>> with vi, not touching it, and leave with ":wq" (not just ":q").
>>
>>
>> Why is that? What is going on here?
>>
>>
>> I know, I know, I can use nmcli in scripts, and not 
>> string-manipulation tools, but say I don't want to... :)
>>
>>
>> And still, during operations, I'd rather edit the files with sudoedit...
>>
>>
>> Thanks in advance,
>>
>>
>> Benjamin Lefoul
>>
>> nWISE AB
>>
I have a related question.  I have now inserted an appropriate UTP cable 
into the RJ-45 jack on my laptop, I have a green LED (meaning MAC 
signal) -- thus I have a 802.3 connection.  However, unlike previous 
incarnations of Network Manager, the present SL7 one does not allow me 
to activate the 802.3 connection, but only the 802.11 connection.  
Evidently, despite claims that NAT should work with 802.11 to VirtualBox 
running a MS Win 7 Pro guest (a claim as I recall contradicted by other 
respondents), it does not (MS Win sees no network).  Thus, I am 
attempting to run my laptop on a wired 802.3 connection, but I cannot 
seem to activate it.  I do need Network Manager when I am in the field 
and must connect to arbitrary 802.11 WLANs in a fashion similar to MS 
Win and Mac OS X (for which the "automagic" 802.11 DHCP hotel, etc., 
networks seem to be designed).  How do I get Network Manager to allow me 
to activate the wired connection?  Note that Network Manager does "see" 
the 802.3 NIC ( it displays Ethernet Network (Intel Ethernet Connection 
I217-LM) but shows disconnected and will not let me connect.  Do I need 
to be root to make this happen?

If this related query should be a new thread, I will repost as such if 
that is appropriate.

Any help would be appreciated.

Yasha Karant