DHCP Client Error: mv cannot move /etc/resolv.conf.dhclient-new to /etc/resolv.conf: Operation not permitted
Q. I'm getting following error on my Debian Linux system:
mv cannot move /etc/resolv.conf.dhclient-new to /etc/resolv.conf: Operation not permitted
How do I fix this problem?
A. This error indicate that dhclient (Dynamic Host Configuration Protocol Client) is not able to update your name resolution configuration file /etc/resolv.conf. To fix this error
Run dhclient as root user
Use sudo command to run dhclient, enter:
$ sudo dhclient eth0
Make sure /etc/resolv.conf is not write protected
Use lsattr, command to view file attributes:
$ lsattr /etc/resolv.conf
Output:
----i------------- /etc/resolv.conf
A file with the i attribute cannot be modified: it cannot be deleted or renamed, no link can be created to this file and no data can be written to the file for any user including root user. Clear i attribute, enter:
$ sudo chattr -i /etc/resolv.conf
Now run dhclient again to update file and to obtained new IP address.
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Tags: /etc/resolv.conf, chattr command, configuration file, debian linux system, dhclient error, dynamic host configuration, dynamic host configuration protocol, file attributes, host configuration protocol, lsattr command, mv, name resolution, protocol client, resolution configuration, sudo command
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