From: Ruben Beltran del Rio Date: Mon, 15 Jan 2024 00:25:35 +0000 (+0100) Subject: Add firewalld X-Git-Url: https://git.r.bdr.sh/rbdr/txt/commitdiff_plain/76ed347e600b19d59e2071d3ed8099f214f8d29d Add firewalld --- diff --git a/learning.md b/learning.md index 593df27..2db10ac 100644 --- a/learning.md +++ b/learning.md @@ -1,5 +1,6 @@ 2024-01-15: SELinux provides restrictions to files I wasn't aware of, and can prevent execution in some contexts. With eza you can view it with -Z. 2024-01-14: On linux you can see logical volumes inside a partition with lsblk, they're shown as lvm. If you resize a partition, you still need to resize the lvm (eg. with `lvresize -l +100%FREE` to take all remaining free space), AND the filesystem (eg. using resize2fs). This is important eg when installing an OS from an image as you might not be using your whole disk. +2024-01-14: On fedora rather than ufw or nftables, you use firewalld. You can create services (eg. gopher with port tcp 70 goes in /etc/firewalld/services/gopher.xml), attach them to zones with `firewall-cmd --zone= --add-service=gopher --permanent` 2024-01-14: User systemd files are expected in /etc/ and not /lib/ 2024-01-14: You can use @ and %i in systemd to have multiple instances (eg myfile@.service, and then executable=blabla %i) where %i will be what comes after @. (So in myfile@howdy, %i will expand to howdy) 2024-01-13: PPP Connections stay alive in the old net router, so you don't need to run ATDTPPP again, but just the connection.