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

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