Linux - UFW Firewall Setup (ufw)

i like the backgroung, Eli

Thanks a lot for these free topics

Thank you for making these lessons free. God bless you brother.

Thanks for your information Sir

txh, good vid + you have nice map

I'm sorry if this has been asked before. I activated ufw and read in the status that it should block everything at first, but it didn't. Is this normal, or specific to Linux Mint, or...? What do I need to do to get ufw working properly?

Thank you so much sir

Hi,
Do I need to log in/authenticate UFW every time I search the internet/run an application?
In the terminal UFW shows active.

how to block a source port like "11211" memcache from any ip address using linux iptables

Always remember that when you delete a rule the numbers above that rule are going to change. If you delete rule 2 then rule 3 will become rule 2, so if you want to get rid of both 2 and 3 you have to either run delete 2 twice or run delete 3 first and then delete 2, if you delete 2 and then delete 3 you've deleted the incorrect rule. The best bet if you're deleting rules is to always run status numbered between deletes to confirm you're about to delete the correct rule. Also, you should make a habit of creating your rules BEFORE you enable ufw. That's even more important if you're working remotely. Can't tell you how many people have shelled in to a new server setup and without thinking locked themselves out by enabling ufw without allowing ssh first.

Most excellent. :)

what if you want it open to everyone except certain ip's or subnets? Like if I'm using Linux as a BBS server?

cant figure out why ufw isnt working literally at all. keeps blocking all traffic no matter what rules i put in

Does ufw do its work through IPTABLES?

Thanks sir

Allowing only a specific ip-address to access does not work if the client is using DHCP right?

awesome video, subscribed!

Very informative video and Thank you so much for Adding those UFW commands on the description, It really make life lot easier.

sometimes the ftp service ufw doesn't let the ftp work and then when i write "ufw allow proto ftp to any port 21" it returns with "ERROR: Unsupported protocol 'ftp'". Is there a solution to my problem and why is this happening?

Hey eli it's amazing that u made the learning new technologies much in ease manner, y don't u prefer doing videos about RPA(Robotic Process Autonation)

Thank you so much for this series. I've learned a ton so far.

Great tutorial, Sir!

Thanks sir , your MCSC course was very worthy for me and God bless you

It's so simple rules like dog commands.

my system is 10 years old should I start fresh to use this Linux