When I navigate to /usr/local/bin...
Screenshot 2023-05-11 at 07.02.07.png

With the permission denied error, I ask if the admin credentials on the newcomputer the same as the admin credentials of your own computer. It appears as if you do not have the correct credentials being used on the new computer.

@Giovanni-Baldi said in Configuring Cache Server with Bind:

I have just discovered a strange behaviour. As soon i enable the vpn bind start to works.

This seems to point the fact the VPN configuration may have changed your DNS setting to what was configured for your VPN, is it configured to your Bind caching server or something else?

Is it possibile that my provider block some bind traffic?

I tested also a laptop where bind works only if i use my smartphone as hotspot but stop to work if i connect to my Vodafone Router .
:anguished_face:

This one also may point to the default DNS server of your hotspot rather than your Bind server.

Thanks so much Joshua! Great stuff!

@Matthew-Dudek,

Be careful with indentations as ldapadd may see whitespace as command or data as confusing.

So check your formatting against what you've seen in the episode.

Let me know if this helped.

@S-M-SHAER,

You can do a search for his name in our course section. He also mainly does the Apple and Linux categories in our course library.

Hey @Marco-Antonio-D-Imperio

So sorry to hear that you're having trouble with Proxychains. Could you post some screenshots illustrating the problem you're having and the steps you're taking to get there?

Thanks,
Daniel

@Victor-Rosa Thanks very much for posting the solution, I did look at this post and was stumped myself - I learned something! :)

@Derek-Sompong No worries!

How long ago was the A+ and the Net+? If that A+ is expired unfortunately taking Linux+ won't renew it - once they're expired they need to be re-earned. If it's still current though it renews it for anther 3 years :)

Compilation errors are almost always tied to version differences in the compiler or dependencies. I suspect your version of GCC is either older or newer than what John the Ripper is expecting. Check their documentation and see what their requirements are. Then you can compare that against whatever tooling you are using to make sure you have the required supporting software.

Rodrigo,

It looks like you set the default FACL, but didn't actually assign permissions to the directory. You didn't share the command you typed to assign the FACL, but I'm pretty sure I can guess it. I recreated your example by doing the following:

dpezet@Dons-Desktop:~$ sudo useradd toni dpezet@Dons-Desktop:~$ mkdir gtic dpezet@Dons-Desktop:~$ setfacl -d -m u:toni:rw ./gtic dpezet@Dons-Desktop:~$ getfacl gtic # file: gtic # owner: user # group: user user::rwx group::rwx other::r-x default:user::rwx default:user:toni:rw- default:group::rwx default:mask::rwx default:other::r-x

This sets the default for new files in the directory to give read and write access to Toni. However, it doesn't actually give Toni the ability to write a new file in the folder. For that, we need one more command.

dpezet@Dons-Desktop:~$ setfacl -m u:toni:rwx ./gtic dpezet@Dons-Desktop:~$ getfacl gtic # file: gtic # owner: user # group: user user::rwx user:toni:rwx group::rwx mask::rwx other::r-x default:user::rwx default:user:toni:rw- default:group::rwx default:mask::rwx default:other::r-x

Notice that I left off the -d argument so that I am assigning actual permissions. Now we can see that Toni has permission to write into the folder. I granted execute as well since that is required to navigate into and view a folder's contents. From here, we can test it out.

dpezet@Dons-Desktop:~$ cd gtic dpezet@Dons-Desktop:~/gtic$ su toni $ touch file.txt $ ls -la total 8 drwxrwxr-x+ 2 user user 4096 Sep 15 07:55 . drwxr-xr-x 18 user user 4096 Sep 15 07:53 .. -rw-rw-r--+ 1 toni toni 0 Sep 15 07:55 file.txt $

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!