Learn networking for linuxadministration?

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What's the best route to do that?
I found ccna to be not that helpful to learn networking and net+ too basic. I want to learn RFCs but not directly read them as they're tougher.
Any recommendations? I'm planning to buy dozen of tcpip protocol suites books like fourozan, miller, comer, stevens etc.
Anything else to add on the hitlist?

 

there are 0 udemy courses about networking concepts. those ccna and net+ and sec+ isn't what i want.

 

You will learn all you need to about basic network concepts from a single book about TCP/IP, buying 10 more of those would just repeat a bunch of info.

After that, I see about 20 wireshark and nmap courses on Udemy. You need wireshark and nmap, so pick 1 for each. When you're using wireshark to unpick DNS traffic you'll be learning about protocols the pro way. Reading RFCs is the text version of this.

Then you need to pick up the basics of bind (bind9) or something like that to do DNS on Linux. Not gonna lie, Youtube looks more promising than Udemy for this part. Just make sure you use a tutorial for bind on the same Linux distro you are learning, this is for Ubuntu the config is significantly different on Redhat based distros.

After that, where do you want to go? Web servers aren't a problem, Udemy and youtube both have plenty of resources for Nginx or Apache httpd. By this point you'll be able to use wireshark to capture the whole syn/ack, dns lookup and return through to the http 200 ok. So an nginx instance running a hello world page would be a quick way to get there.

That should keep you busy for a while. There will be another Udemy sale when you need to move onto LDAP, HA Proxy or Traefik, and softrware defined networks. There's always an Udemy sale when you need one.

 

You just shared network security concepts