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
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?
When we use ssh public key authentication, we usually add relevant settings in ~/.ssh/config. If some are used by the company or at home, can multiple configs be used? In fact, it is possible. We can use git to load the company-shared, version-controlled config through Include.
Recently, I just started using Google's GCE, and I will record the official Goolge documentation on how to generate a key for the instance to use. The -C comment here will use the name of the logged-in user, and the -t will use rsa.
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