Linux - www.m00nie.com

Linux

A collection of 55 posts

SSH Unable to negotiate

SSH Unable to negotiate

Trying to connect to some older Cisco routers from a reasonabley modern linux machine gave me the following errors: Unable to negotiate with 1.1.1.1 port 22: no matching host key type found. Their offer: ssh-rsa Unable to negotiate with 1.1.1.1 port 22: no matching

Install Wireguard on Fire stick

Install Wireguard on Fire stick

Recently its been handy to have some traffic from fire sticks to traverse VPNs using wireguard. The below was found to be working well for me using 4k fire stick (Fire stick lite did not work at all for me :(). I also used adb to install the wireguard package just

Simple traffic control tester (traffic mangling)

Simple traffic control tester (traffic mangling)

This post covers how to make a nice simple (cheap!) but still powerful traffic ‘mangler’ :) It can quite granularly control the bandwidth, latency, loss and error injection levels without having to re-plumb or reconfigure the network you are trying to test. To do this we’ll use two nice features

Specifically disable certificate verification in lftp

Specifically disable certificate verification in lftp

LFTP is a great FTP program that I use quite regularly. I recently had a problem connecting to a server (that I didnt control) and getting the following error due to the cert being self signed:

Install and verify softflowd for Netflow on OpenWrt

Install and verify softflowd for Netflow on OpenWrt

softflow is a great opensource Netflow exporter that is support on OperWrt :) This allows us to sample the flows running through our OpenWrt router, export them to a netflow analyzer (more on those in a future post) and "see" our traffic. Netflow is much richer in information than just SNMP

openweathermap script for eggdrop

openweathermap script for eggdrop

Recently wunderground announced the end of new registrations for "free" API access making an earlier eggdrop weather script [here] somewhat less useful. The script below attempts to replicate the functionality but using the very nice people over at openweathermap.org API. It also makes use of a second API from

movie search script for eggdrop bot using api

movie search script for eggdrop bot using api

Recently another script I used to search for film information got broken. After a quick look around I found the nice people over at OMDb (http://www.omdbapi.com/) who have a good API to expose things like IMDB rating and other information regarding movies. Its a simple script (as

Twitter Eggdrop script

Twitter Eggdrop script

I've started to play around the the Twitter API a little and created a small script to grab the contents of a spammed tweet link and display it in the channel. Requires a v1 API key etc for Oauth which you can request here: https://apps.twitter.com/ Take a

News script for eggdrop bot

News script for eggdrop bot

This script uses the API from newsapi.org to return the latest headlines from a users preselected news site. Requires +news set on the channel and your own free API key Any comment or suggestions more then welcome :) Example screenshot: Script can be grabbed [here]. Script: ################################################################################################ # Name m00nie::news # Description

kodi-pvr-mythtv addon for Fedora (25)

kodi-pvr-mythtv addon for Fedora (25)

Kodi MythTV PVR automated packages from rpmfusion. and unitedrpms. sadly haven't been working on my Fedora 24 or 25 systems for quite sometime with crashes and failures to load that I couldnt figure out easily. I've manually built the addon using the following commands (on a 64bit Fedora 25 system)

Gif search script for eggdrop bot

Gif search script for eggdrop bot

Just another small script that uses the nice API over at giphy to return gif links based on the query from a user. Requires +giphy set on the channel but hopefully a very simple and straight forward script although as ever any comment or suggestions more then welcome :) Script can

Weather eggdrop script for wunderground.com API

Weather eggdrop script for wunderground.com API

*** This API has since been closed by Wunderground :( Please look HERE for an more modern alternative This is a simple script tcl script for an eggdrop that will allow users to set a default location and then grabs current conditions or a 3 day forecast using that default location or

Install GNS3 1.x on Fedora 22

Install GNS3 1.x on Fedora 22

Quick guide to installing the quite awesome GNS3. Very similar process to Fedora 20 but this time using DNF and a small adjustment on some package names with some extras included now for dynamips to compile since it now uses cmake. Install dependencies sudo dnf install git gcc python3-devel python-pip

Decrypt HTTPS (SSL/TLS) with Wireshark

Decrypt HTTPS (SSL/TLS) with Wireshark

Wireshark has some very nice SSL/TLS decryption features tucked away although you need either of the following two: * Access to the servers private pki key * Access to the client machines and its (pre)master secrets (also need Firefox or Chrome) Unfortunately, dumping the premaster secret was removed in FireFox

Install NGINX with HTTP/2 and Pagespeed

Install NGINX with HTTP/2 and Pagespeed

[toc] Been playing recently with nginx rather than apache (nginx supports http/2 now as of 1.9.5) and its been quite a nice change with a much cleaner config in my mind. Pagespeed is also quite a nice module from our friends over at google to help automatically

jun2acl (Juniper to Cisco ACL Script)

jun2acl (Juniper to Cisco ACL Script)

Recently we've needed to migrate an inherited environment away from Juniper Junos and onto Cisco IOS. As part of this a lot (!) of old an quite nasty firewall filter config needed to be converted to Cisco ACL style. Unfortunately (maybe for a good reason???) there doesnt already seem to be

Youtube eggdrop script using API v3

Youtube eggdrop script using API v3

Just a very simple eggdrop script that allows users to search on youtube using the youtube and will also return some information for any youtube link spamming into the channel set with +youtube. This uses the youtube v3 API. You can grab your own API key [here]. This script is

Kuvaton Eggdrop script

Kuvaton Eggdrop script

A very simple little TCL script for an eggdrop bot that will grab either some random images or return search results from http://kuvaton.com/. Any problems or suggestions just let me know. Example: Script should hopefully be quite readable and reusable :) #################################################################### # Name moonie:kuvaton # # Author m00nie # # Description Grabs some

Install GNS3 1.0 on Fedora

Install GNS3 1.0 on Fedora

Recently started to play around with the new GN3 1.0 release on my Fedora 20 laptop. Just a quick guide to installing since the official notes only seem to mention apt/debian. On a side note the new 1.0 releases are starting to look awesome already :) Install dependencies

Install NFSEN (Centos 6 & Fedora 20)

Install NFSEN (Centos 6 & Fedora 20)

Found myself having to do this a few times now and it usually ends up being quite messy in the end so some nice clean instructions from a real sysadmin. All credit goes to @gowmonster. I've tested this guide against Fedora 20 and Centos 6. This guide follows Centos 6

Simple script to add route to exaBGP

Simple script to add route to exaBGP

Continuing to play around with the very fine exaBGP. This time adding my own little script to announce a new route and reload the exaBGP config to announce the new prefix :) Please note this script makes use of another script that I posted about [here] and I have the script

Fedora 19 how to install GNS3

Fedora 19 how to install GNS3

Doesnt seem to be a package for GNS3 on Fedora but installing from source is pretty straight forward :) The example below uses the latest version at the time of writing which was 0.8.4 stable. wget http://sourceforge.net/projects/gns-3/files/GNS3/0.8.4/GNS3-0.8.4-src.

Use tcpdump to analyse HTTP POST data

Use tcpdump to analyse HTTP POST data

Today it has been useful to look at POST data being sent to this webserver. A nice filter to do this at the console with tcpdump is: tcpdump -s 0 -A 'tcp dst port 80 and (tcp[((tcp[12:1] & 0xf0) >> 2):4] = 0x504f5354)' This will capture and output

Simple script to reload exaBGP config

Simple script to reload exaBGP config

Recently started to look at exabgp as a tool to inject routes for a RTBH setup. Works nicely so far so made the following simple script to reload the config after changes so they take effect. This was made using exabgp 3.0.11 and Centos 6. The config is

Fedora sound over HDMI using pulseaudio

Fedora sound over HDMI using pulseaudio

On a few machine builds I've had some problems getting sound over HDMI interfaces to TVs on Fedora machines (15/16/17). I guess this is probably the same for any system using pulseaudio though like Ubuntu. Sound would work with MythTV but not browser or desktop sounds like youtube