To work as a Linux network engineer

look man,

If you need to work as a Linux network engineer , you mush study hard and practice all of the following topics :

1- OSI Model and TCP/IP “main concept”

2- all network principles like configuration, routing, and diagnosis from Linux point of view.

3- main differences between daemons and services.

4- Deploying DNS, FTP, SMTP, HTTP,HTTPS,OpenLDAP,FreeRadius, NFS, SAMBA, and Proxy services .

5- How to secure all of these daemons using a lot of techniques like TCP-Wrappers, Iptables or firewalld, PAM, and SELinux.

That’s enough ..but you must practice all of these practically not academically ..

Best Regards,

#Moustafa_ElZenY