Are there any good books on networking?

Question

Python

Good day to all!
I am engaged in development, sometimes I am faced with network administration tasks, setting up routing, or, for example, setting up CNAME for a domain name according to the manual, not understanding how it all works inside, etc.
Advise, please, a good book on network technologies, to refresh knowledge, so to speak. I have not been interested in this direction for a long time. Thanks in advance

Answer 1

> Where is the error?
in DNA! not only did you not bother to write about the technology used in the question (telepaths, as you already understood, are on vacation), you have not yet attached the error log.
And the worst part is, you don't read the documentation.
once:

Note that, if you only want to ask the user for some text input, like Python's `input` 
function would, or a password, you can use the `dialogGetInput` and 
`dialogGetPassword` methods,  which are just convenient wrappers,
allowing you to get these inputs in a single call.

two:

http://www.mithril.com.au/android/doc/index.html
when you call sl4a,you have to tell sl4a what to do, if sl4a can't recognize it,
sl4a throws an Unknown RPC error

three:
//all this was found in 5 minutes, despite the fact that I have never smeared myself with this obscenity on a puff, and I do not advise you!

Answer 2

Here is a good guide to the basics of networks: www.soslan.ru/tcp
Computer networks, E. Tanenbaum - it has an even broader description of the basics, but it is hard to read.