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Full Discussion: resolv.conf
Operating Systems Linux Ubuntu resolv.conf Post 302417044 by fpmurphy on Wednesday 28th of April 2010 11:00:02 AM
Old 04-28-2010
chattr +i /etc/resolv.conf means make /etc/resolv.conf immutable, i.e. no process can change it. Depending on which filesystem type you are using it may or may not work.

Your problems are due to the NetworkManager service. Lots of discussion out there on this issue. Just do a web search for "Ubuntu NetworkManager resolv.conf."

I always turn off the NetworkManager service on any system I use. I do not want some bit of software silently changing my network settings.
 

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LEARN ABOUT CENTOS

nm-connection-editor

NM-CONNECTION-EDITOR(1) 				      General Commands Manual					   NM-CONNECTION-EDITOR(1)

NAME

       nm-connection-editor - network connection editor for NetworkManager

SYNOPSIS

       nm-connection-editor  [ OPTIONS ]

DESCRIPTION

       nm-connection-editor  is  a  GTK-based application to add, remove, and modify network connections stored by NetworkManager.  NetworkManager
       must be running for any network connections to be added, removed, or modified.

OPTIONS

       -t, --type=<type>
	      Type of connection to create or show.  Values are NetworkManager setting names, eg  "802-3-ethernet",  "802-11-wireless",  "bridge",
	      "bond", "wimax", "infiniband", "vlan", etc.  Does nothing if --create or --show is not given.

       -s, --show
	      Expand or collapse the network list to highlight the network connection type given by --type.

       -c, --create
	      Create a new connection of the type given by --type and allow the user to modify connection details.

       -e, --edit=<uuid>
	      Show the network connection edit window for the connection of the given UUID.

SEE ALSO

       nmcli(1), NetworkManager(8), nm-applet(1).

								 15 February 2013					   NM-CONNECTION-EDITOR(1)
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