List connections going through openwrt router
(or indeed on any linux system). ssh in and cat /proc/net/*conntrack | grep dport=22 | grep dst=1.2.3.4 to check ssh connections to 1.2.3.4 for example
Archive of entries posted by james
OpenSSL / CVE-2014-0160
The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly handle Heartbeat Extension packets, which allows remote attackers to obtain sensitive information from process memory via crafted packets that trigger a buffer over-read, as demonstrated by reading private keys, related to d1_both.c and t1_lib.c, aka the Heartbleed bug. via CVE …
Manage your inbox with imapfilter
I’ve been looking for something to manage my inbox, I already use procmail to file mails into folders as they arrive, but I end up with a lot of emails that need tidying up later. For example, I receive the weekly BBC 4 progamme guide email – after a week the programmes have been shown …
Check domain expiry in nagios
With the plugin I am currently using failing on one of my domains, I decided to write another short plugin in python, using the pywhois library. Unfortunately this failed to parse the Godaddy whois output, so there is a workaround for this included in the plugin. Download the plugin from github.
scp too slow? try bbcp
bbcp is an alternative to scp that for me was 6x faster – it uses ssh as a transport but uses parallel streams. You may need to open up some firewall ports. Do not use if you don’t want your network bandwidth saturated! Example usage specifying an open port range on the remote server: bbcp …
Ubuntu 14.04 and “classic” Gnome
Upgraded to Ubuntu 14.04. A desktop option is Gnome MATE, which is classic gnome, I’ve kicked XFCE out and this is like welcoming an old friend back. How to Install Mate 1.8 CLassic Desktop Environment in Ubuntu 14.04 Trusty LTS.
Fix your statusbar in Firefox 29+
Adds back the addon bar for Firefox with the Australis theme Firefox 29 and up.It aims to be a lightweight, yet fully functional replacement for the old Addon Bar.Great for power users who have many addons installed, and especially for long toolbar items.This also restores the status-bar area, so it works with extensions such as …
check_tfl – a nagios check for Transport for London
I’ve written a simple nagios check for TFL’s services (Tube & DLR): check_tfl.tar Latest version in my github repository.
Tabs, Whitespaces, and Highlighting in Emacs – for the Python Programmer
If you’re a python programmer, you probably know all about the troubles mixing tabs and spaces can cause. I have searched far and wide, and have collected some really useful configurations for setting up the perfect Emacs configuration for Python. What it does: Insert spaces instead of tabs when indenting Sets indent to 4 spaces …
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Hexspeak
Hexspeak, like leetspeak, is a novelty form of variant English spelling using the hexadecimal numbers. Created by programmers who wanted a magic number, hexspeak words can serve as a clear and unique identifier with which to mark memory or data. via Hexspeak – Wikipedia, the free encyclopedia.