Networking, Rkhunter and System Reports

[jean52]

Hello,

I reinstalled Linux Mint and have some more questions. Thank you in advance for your help. I am a newbie and I am lost.

NETWORKING: I do not want to be connected to the internet when I am not using it and I used this command to disconnect (I thought): nmcli networking off (and on). However, when I ran the NETSTAT command, i got 14 pages of connections to my PC. Because of the large number, I disconnected from my modem/router and ran NETSTAT again. All were still connected. When I restarted the PC, I checked and all were still connected (without connecting to my modem/router). I am attaching screenshots. The long list of connections to my PC is not using my network. Can anyone help me figure out what is going on and how to get rid of them? Did the command I used cause this problem? Could you please give me the command to shut off all access to my PC?

RKHUNTER: I would like to use a recommended software for watching and protecting the PC. I found this one in Programs and extracted the software and tried to install by clicking on the install terminal, but it crashed. Could someone please tell me the correct steps to take to install and run?
(I have had ongoing problems on Windows 10 with Windows system/or others creating credentials, registry changes, system changes and software shut offs. I believe this is happening because I try to disconnect from the internet--but new hidden bluetooth devices, adapters or virtual adapters were installed.) I am trying not to have these ongoing problems.

SYSTEM REPORTS: When I click on system reports, it runs and then says No problems found. I would like to be able to see the reports or view events, but when i click on show ignored reports, nothing happens. Is there a way to turn on System Reports so I can see them?

I am unable to attach the screenshots of the results of NETSTAT that I would like, but here are three. Thank you very much.

[SuperJoker]

About rkhunter: You need nothing to protect your system, no antivirus.

[1000]

About rkhunter
viewtopic.php?p=2068148#p2068148

About netstat
Take a close look.
You see

Code: Select all

$ netstat
Active Internet connections (w/o servers)
...

and a little below you see

Code: Select all

...
Active UNIX domain sockets (w/o servers)
...

And now you can try to search in internet what it is.
For example
https://tldp.org/LDP/intro-linux/html/i ... sect_03_01

(Domain) sockets: a special file type, similar to TCP/IP sockets, providing inter-process networking protected by the file system's access control.

https://en.wikipedia.org/wiki/Unix_domain_socket

A Unix domain socket or IPC socket (inter-process communication socket) is a data communications endpoint for exchanging data between processes executing on the same host operating system.

[1000]

SYSTEM REPORTS:
I installed systemd-coredump and it works for me now, so I can share my reports
- install language packs
- install multimedia codecs
As you can see, nothing interesting.

If you want add something, read this
https://linuxmint-troubleshooting-guide ... where.html
https://github.com/linuxmint/mintreport
https://linuxmint-developer-guide.readt ... en/latest/

Additionally, probably every system has something like a system log
Search how check logs in Linux systems.
Check also this viewtopic.php?p=2072947#p2072947

Edit
And read
https://linuxmint-troubleshooting-guide ... rrors.html

Edit
Read also
viewtopic.php?p=2059593#p2059593
viewtopic.php?p=2012516#p2012516
viewtopic.php?p=1945996#p1945996
And https://easylinuxtipsproject.blogspot.c ... urity.html
However, the topic of security is big
For example you can also read
viewtopic.php?f=42&t=240157
Some of games may not work when sandbox is active.

[jean52]

Thank you for your time and thoughtfulness, 1000. I don’t know if I can follow all this, but I’ll read the links this weekend and I hope I can follow up with you?

[Hoser Rob]

rkhunter may be 'recommended' but more for system administrators than for beginners. It assumes a lot of knowledge in users.