But in same time I am able to access other existing users via ssh & if I am creating new user that I am also able to access through ssh but this one user I am not able to access through ssh.

Your second command is typed correctly so that usually that indicates that the group you specified does not exist. Run grep Marketing /etc/group to see if it is present. Also, remember that group names are case sensitive.

@nima-khamoush No problem! :)

@Michael-Wittek No, since LPI stopped collaborating with CompTIA on Linux+ you have to take LPIC1 before you can take LPIC2. You're also not eligible for LPI membership until you complete at least the LPIC1, although you are if you completed the old Linux+. Seems a real shame that they ended the collab!

@Brian-Woods-0, @Don-Pezet can give you a better answer I'm sure, but I'm currently a part time pentester, looking to land a full time role, so here's my two cents :)

I started out in IT as a whole 15 years ago - 10 years ago I'd see almost only Red Hat running in enterprise environments, today I'd say it's almost 50/50 rhel/ubuntu server (spent a good chunk of my career so far as a developer, so I may be a bit biased there) LPIC1 and Linux + are, in my view, excellent certifications which give you enough to get to work in cybersecurity whichever Linux family you work with primarily - IMO LPIC-2 (especially the second exam which focuses on services) is the most useful for pentesting and offensive security as being very comfortable with apache/squid/nginx gives you a real advantage.

I don't have any red hat certs, but might well look into it one day!

Thank you so much.

Good day @Majd-Sawaf ,
We do not have any OpenVPN titles on our roadmap for this year. However, one of the edutainers may be able to suggest current catalog episodes. The Search function (in the upper right) does search across course titles as well as episode keywords and titles, so that is a good place to start.

@melvin-mcqueen,

probably both are possible.

if you want to test from the local host:

showmount -e localhost Export list for localhost: /public *

the above will show you where you can mount it

mount localhost:/public /mnt

the above will verify it locally mountable.

Thank you so much.

Greetings, @Lokesh-Suthar

I would start by making sure that port 3306 is open on the MySQL server. An easy way to do that is to run Nmap.

sudo nmap -n -Pn -p 3306 192.168.0.35

This should return something like...

PORT STATE SERVICE 3306/tcp open mysql

If the STATE says closed then you won't be able to connect using that port. If you changed the listening port, then you'll need to connect using that port.

Another circumstance that might be preventing you from connecting remotely would be that you have the right port enabled, but the MySQL service is connected to an internal IP like 127.0.0.1

You can check that with netstat

netstat -antp

There should be an entry under the Local Address column that reads 192.168.0.35:3306

Greetings, @Lokesh-Suthar

I'm not 100% sure this is what you're looking for, but if you just want to see the users that are in the /etc/passwd file and not the system and service accounts, you can just grep for the accounts with a login shell.

Assuming all users are set to /bin/bash by default

dlowrie@linux1:~$ grep /bin/bash /etc/passwd root:x:0:0:root:/root:/bin/bash dlowrie:x:1000:1000:Daniel Lowrie,,,:/home/dlowrie:/bin/bash

If the system is using shells other than bash, you can just switch "/bin/bash" for whatever shell your system uses.

Another way would be to exclude entries whose shell is set to "nologin" or "/bin/false"

dlowrie@linux1:~$ grep -v "nologin\|/bin/false" /etc/passwd

This might not catch every non-user account, but you can just adjust the regular expression(regex) to exclude that as well.

For example, when I ran the previous command I got the following output...

dlowrie@linux1:~$ grep -v "nologin\|/bin/false" /etc/passwd root:x:0:0:root:/root:/bin/bash sync:x:4:65534:sync:/bin:/bin/sync dlowrie:x:1000:1000:Daniel Lowrie,,,:/home/dlowrie:/bin/bash

sync is not a standard user, so I need to remove it from my search results. So I will just modify my regex to include "/bin/sync"

dlowrie@linux1:~$ grep -v "nologin\|/bin/false\|/bin/sync" /etc/passwd root:x:0:0:root:/root:/bin/bash dlowrie:x:1000:1000:Daniel Lowrie,,,:/home/dlowrie:/bin/bash

Now I only get user accounts. So just keep modifying your search until you get the desired results.

I hope that helps!

Cheers,
Daniel

@ronnie-wong Thanks

Hey @David-Underwood

I think I see your problem.

You have a white-space between HNAME= and `hostname`

So you have this...

2 HNAME= `hostname`

You should have this...

2 HNAME=`hostname`

Back-ticks are tricky to work with, so most will suggest you use the more readable form of command execution which looks like this...

2 HNAME=$(hostname)

I hope this helps.

Daniel

@alex-martinez-0 said in Issues with apt command:

Okay, I appreciate your post @Ronnie-Wong --- So what you are saying is I may just need to get a new PC? Because the one I have been using to study on is very old. It is the family computer that has not been renewed in at least a decade.

I would look for spec that support virtualization and what I think intel calls EPT (Extended Paging Tables or AMD SLAT (Second Level Address Translation).

The issue though that you'll have to enable it in BIOS.

Then the other issue is performance. VMs within VMs is incredibly "voodooish", it may work somedays insanely well....other days it may run like a dog.

I would do this if I didn't have any other choice....but not for anything that is critical.