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?
For Linux system administrators, you must understand the ps aux command. If you want to be a Linux system administrator, or you are a Linux user, you should understand this command. ps is process status For short, anyone can find out what kind of program is running on the system and how the status is executed through this command. I saw some programs that should not appear, maybe the system was hacked and used to mine🥹
This article uses CentOS 6.2 to rebuild curl and git. The main reason is that the operating system is too old, so I directly build the latest version of git from source.
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