Not sure who will use it, but I encountered it myself, because my home is a floating IP.
A software I installed can't detect that the ppp0 network card is an external network, so changing the name can trick him into successfully installing it.
1. File opening
vim /etc/ppp/peers/dsl-provider2. Add ifname eth0 in the last line
plugin rp-pppoe.so
nic-ens3
ifname eth0
rsnapshot is a rsync-based tool that can perform snapshot incremental backups. However, we installed which rsnapshot in CentOS. Why is there no such command? There is no way to install it with yum install rsnapshot?
When we use ssh to connect to the host for the first time, a fingerprint confirmation of the host key will be displayed. Sometimes use rsync for some automated scheduling, maybe the remote host has changed and needs to be automatically allowed, How to let ssh automatically allow fingerprints to connect without manually pressing yes in interactive mode?
Checklist introduces how to start VNC Server on Raspberry Pi
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