konec #IPTables je v dohlednu, částecně už i na dosah
za poslední rok jsem investoval čas a z předchozích #UFW a mrtvého #Shorewall přeskočil #FirewallD rovnou do nahatých #NFTables

- UFW využívá na pozadí iptables automaticky překládané do nftables, což je paskvil, který může vyhovovat závislákům na prehistorických iptables souborech "na které se nešahá", ale progresivnějšímu uživateli dost svazuje ruce
- navíc je nutné mít namemorovanou jejich speciální syntaxi a hlavně skladbu argumentů, takže většinou zadám validní příkaz na asi 4. pokus

- FirewallD si samozřejmě taky vymyslel vlastní příkazovou syntaxi, ale zároveň zapleveluje nftables nepoužívanými chainy, přijít k cizímu stroji a udělat nějakou drobnou úpravu v pravidlech je skoro na nobelovku

- NFtables jsou za mě nejpřehlednější a nejspolehlivější (největší kontrola), navíc umožňujou mít totální kontrolu nad firewallem a poslat k šípku snahy Dockeru o nadvládu
- navíc jsou velmi jednoduché a snadno pochopitelné

Successful set up of #firewalld, #KVM & #Cockpit Web Console on #openSUSE Leap 16 Beta done manually & without #YaST! Check out #CLI this #testing with #Leap16 #Linux https://dbaxps.blogspot.com/2025/05/setup-firewalld-and-kvm-on-opensuse.html

How To Check And Secure Open Ports In Linux #Linuxnetworking #Linuxsecurity #Linuxadmin #Linuxhowto #Linux #netstat #ss #firewalld #iptables #nmap #lsof
https://ostechnix.com/check-and-secure-open-ports-in-linux/

New Episode: hpr4303 :: TIL two things to do with firewalld

You can't use 10.0.0.0, and if you restart firewalld, you should restart your podman containers.

Hosted by dnt on Wednesday, 2025-01-29 is flagged as Clean and is released under a CC-BY-SA license.

Tags: #firewalld, #podman.

Today on the #HackerPublicRadio #Community #Podcast​

#HPR #CreativeCommons

https://hackerpublicradio.org/eps/hpr4303/index.html

https://www.enricozini.org/blog/2025/debian/debugging-printing-to-a-remote-printer/

I upgraded to Debian testing/trixie, and my network printer stopped appearing in print dialogs. These are notes from the debugging session.

#debian #cups #firewalld

Is there a #FreeBSD 1[34]] #pf to #RockyLinux 8 #iptables, #firewalld <https://docs.rockylinux.org/guides/security/firewalld-beginners/>, or whatever else converter?

I will take a table that would guide how to manually convert the syntax of pf.conf(5) <https://man.freebsd.org/cgi/man.cgi?query=pf.conf&apropos=0&sektion=5&manpath=FreeBSD+14.1-STABLE&arch=default&format=html>.

How to Set Up #FirewallD in #RHEL-based Systems

https://www.tecmint.com/configure-firewalld-rhel-rocky-almalinux/

"Redirect local ports with firewalld" by @major

https://major.io/p/firewalld-port-redirection/

J’ai déjà dû le dire ici, mais j’adore #Firewalld, c’est vraiment un pare-feu simple à configurer

https://firewalld.org/

Why is firewalld so much more confusing than ufw? Is it because of Red Hat?

I'm setting up a small server for personal usage. I'm currently looking at #fail2ban and #firewall configuration. Should I configure fail2ban to use directly #nftables or go through #firewalld I would rather skip using firewalld that doesn't seems relevant in a server scenario but I would appreciate any feedback

Ah, obviously. #docker only gets along with #firewalld if the latter is using the iptables backend (not the higher performing nftables default).
The #iptables backend is depreciated and slated for removal.

And of course there's no error message if configured "incorrectly", just random breakage that one then gets to debug!

I hate computers. I wish I was good enough at something else.

Any firewalld/IPv6 experts here? How can I make firewalld to forward packets to internal network for some destination address/port. #IPv6 #firewalld

Sicher im Netz unterwegs mit der ufw Firewall

Ich zeige dir, wie du die ufw Firewall unter Linux einrichten kannst, um deinen PC vor Angriffen aus dem Internet zu schützen.

#Ufw #Firewall #SpaceFun #firewalld #TuxWiz #Linux

https://gnulinux.ch/sicher-im-netz-unterwegs-mit-der-ufw-firewall

Pop quiz for #Firewalld. All things being equal, which of these determines the priority of which zone rules get applied if an IP source overlaps:

#Firewalld 2.1 Released with Improved Network Security

https://debugpointnews.com/firewalld-2-1/

New #firewalld release!
https://firewalld.org/2024/01/firewalld-2-1-0-release

Do you know how to set up a secure firewall for your network? Our 'firewalld' tutorial has had good reviews from users. It can walk a beginner through the process of setting up the default Rocky Linux firewall daemon. For users with some previous knowledge of older firewall technologies, the IpTables Guide helps translate that knowledge into the 'firewalld' setup. https://docs.rockylinux.org/guides/security/firewalld-beginners/ #tutorialtuesday #firewalld #howto #linuxtips #documentation