OpenWRT hourly speedtest maximum bandwidth delivered by ISP

Work in progress, place holder, these are the commands required to run the python code that I wrote

opkg install python3-light opkg install python3-email

opkg install python3-openssl opkg install python3-codecs

opkg install ca-certificates

Setup IPv6 in Tsinghua on Linux(ArchLinux))

Tsinghua university uses ISATAP to provide IPv6 connectivity to students. In Linux you can use the isatapd program to create an ISATAP tunnel based on an IPv4 device.

You can use the isatapd command as follows to establish an ISATAPD tunnel:

isatapd --router isatap.tsinghua.edu.cn

After connecting check …

Create Linux bridge without losing existing connection

The dillemma: You're accessing your server via SSH through interface eth1.102 with the ip 10.20.0.2/24 and gateway 10.20.0.1. Now you want to add eth1 to a linux bridge so you can hookin VMs on a vlan trunk.

Solution: Create a script which …

Docker get private ip address of container

In order to access other containers from a container it's needed to get the private IP address of the other containers. The following command is able to get the private ip address of the container.

$ docker inspect --format="{{.NetworkSettings.IPAddress}}" $CONTAINER_ID_OR_NAME
172.17.0.15

Docker Multiple websites/domains on single ip/host tutorial using a HAproxy as reverse proxy

This post will describe how to expose multiple docker containers running websites on port 80 using HAproxy as a reverse proxy. This makes it possible to run multiple websites on different domains on a single public ip of the host.

The basic setup is to create 1 container for haproxy …

SSH to server behind a firewall via an SSH tunnel

A server behind a firewall was unaccesible from my home, but another server which is on the same local network had public SSH access from my home. So we can create an SSH tunnel via this public server to the server behind a firewall.

For example the public ssh server …

Ignoring every channels join/part/quit messages in IRSSI

Tired of all those join part messages?

/ignore \* joins  
/ignore \* parts  
/ignore \* quits  
/save

Read more about ignore /help ignore

Taken from Archwiki: https://wiki.archlinux.org/index.php/Irssi

Create tar archive of changed/added files in a git commit

The following command first gets the changed and added files of a git commit and then creates a tar archive of those changed files.

git show {{COMMIT_ID}} --name-status | grep -Ew '^M|A' | awk '{ print $2 }' | xargs tar czf usb-passthrough.tar.gz

Full migration/clone of linux installation to a new system(Without reinstalling)

I'm switching to a new laptop, but don't want to have to install Archlinux again. So instead of re-installing I will try to copy all files and hope the system will work. In this blogpost I will describe the steps and issues I encountered while doing so.

Status: Succeeded!!!!

Summary …

Trying to install scrapy with pip lxml error: command 'gcc' failed with exit status 1

Just tried to install scrapy with pip / easy_install, but when it comes to installing lxml it will give the following error:

gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -I/usr/include/python2.7 -c src/lxml/lxml.etree.c -o build/temp.linux-x86_64-2.7/src/lxml/lxml …