Have you ever downed a network interface on a server at the other end of the world? Should the changes cause a networking outage, the timer expires before the user can confirm success and the changes are reverted, hopefully restoring connectivity. A checkpoint is essentially a snapshot of an active network configuration along with a timer. The user needs to define a checkpoint first, then conduct the potentially dangerous changes and finally confirm that the changes didn’t disrupt connectivity.
It allows the user to roll back to a working network configuration if any changes render a machine inaccessible over a network. One of the lesser known goodies provided by NetworkManager is the checkpoint/restore functionality. Read on to learn what awaits you in the version 1.12! We are especially proud of the increased community contributions to NetworkManager. Nevertheless, we’ve spent significant effort improving things under the hood, addressed many bug reports and added new features.
As usual, the new version is 100% compatible with the older releases and most users can update their systems without spending much time caring about technicalities. A brand new version of NetworkManager, a standard Linux network management daemon, is likely to reach your favourite Linux distribution soon.
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