joshenders

How to improve tailscale throughput via transport layer offloading in OpenWrt 24.10

Tailscale version 1.54 or later used with OpenWrt 24.10 or later (which uses kernel 6.6) enables UDP throughput improvements via transport layer offloading.

Namely, tuning two features may show improved throughput:

• rx-udp-gro-forwarding: Enables UDP Generic Receive Offload (GRO) forwarding, which aggregates incoming UDP packets to reduce CPU overhead on receive.
• rx-gro-list: If disabled (off), it prevents multiple flows from being aggregated simultaneously which simplifies flow handling and performance on some workloads.

[!NOTE]

LinuxSBC

#!/bin/bash
set -oue pipefail

INFO='\033[0;36m'    # Cyan for general information
SUCCESS='\033[0;32m' # Green for success messages
WARN='\033[0;33m'    # Yellow for warnings
ERROR='\033[0;31m'   # Red for errors
NC='\033[0m'         # No Color

echo "This script will help you set up 1Password in a Flatpak browser."

borcean

ThinkPad T480 fingerprint reader on Fedora Linux

Background

The Synaptics fingerprint sensor (06cb:009a) present on my T480 is not supported by libfprint and fprintd as it requires a non-free binary blob. uunicorn created open-fprintd, a replacement for fprintd, that allows for loading of binary blobs. In conjunction with their python-validity driver we are able to make use of the inbuilt fingerprint reader. The following instructions were tested against Fedora Linux 35.

Installing open-fprintd and python-validity

sudo dnf copr enable tigro/python-validity
sudo dnf install open-fprintd fprintd-clients fprintd-clients-pam python3-validity

craftyc0der

How to setup RAID1 with BTRFS on Fedora

Here we list our disks for future use.

sudo lsblk

sinbad

#!/bin/bash

# `gitea dump` doesn't currently back up LFS data as well, only git repos
# It primarily backs up the SQL DB, and also the config / logs
# We'll backup like this:
#   * "gitea dump" to backup the DB and config etc
#   * tar / bzip all the repos since they will be skipped
#     * Not rotated because git data is immutable (normally) so has all data
#   * rsync LFS data directly from /volume/docker/gitea/git/lfs
#     * No need for rotation since all files are immutable

bruvv

Note: this was tested and used on DSM5 and partly on 6. Since V7 I am not using this anymore.

Got and ssh into your box. Find what is using swap:

find /proc -maxdepth 2 -path "/proc/[0-9]*/status" -readable -exec awk -v FS=":" -v TOTSWP="$(cat /proc/swaps | sed 1d | awk 'BEGIN{sum=0} {sum=sum+$(NF-2)} END{print sum}')" '{process[$1]=$2;sub(/^[ \t]+/,"",process[$1]);} END {if(process["VmSwap"] && process["VmSwap"] != "0 kB") {used_swap=process["VmSwap"];sub(/[ a-zA-Z]+/,"",used_swap);percent=(used_swap/TOTSWP*100); printf "%10s %-30s %20s %6.2f%\n",process["Pid"],process["Name"],process["VmSwap"],percent} }' '{}' \;  | awk '{print $(NF-2),$0}' | sort -hr | head | cut -d " " -f2-

Update synoinfo.conf to correct memory in MB (https://www.gbmb.org/gb-to-mb) for 8GB:

hjbotha

#! /bin/bash

# NEWLY ADDED BACKUP FUNCTIONALITY IS NOT FULLY TESTED YET, USE WITH CARE, ESPECIALLY DELETION
# Developed for DSM 6 - 7.0.1. Not tested on other versions.
# Steps to install
# Save this script in one of your shares
# Edit it according to your requirements
# Backup /usr/syno/share/nginx/ as follows:
# # cd /usr/syno/share/
# # tar cvf ~/nginx.tar nginx

Ashton-W

Click to toggle contents of `code`

CODE!

spalladino

# Backup
docker exec CONTAINER /usr/bin/mysqldump -u root --password=root DATABASE > backup.sql

# Restore
cat backup.sql | docker exec -i CONTAINER /usr/bin/mysql -u root --password=root DATABASE

valorin

#!/bin/bash

# Load active ports
PORTS=`lsof -i | grep mosh-serv | cut -f2 -d":"`
STATUS=`sudo ufw status`

# Add Rules for new ports
for PORT in $PORTS; do

    echo $STATUS | grep "$PORT/udp" > /dev/null