C.NET Core is a highly performant programming language created by Microsoft, which is an evolution of the legacy .NET Framework. Notably the latest version now natively supports op...
Clickhouse is a column-oriented database created by Yandex and open sourced, which supports real-time SQL queries for Online Analytic Processing. It is designed from the ground up ...
So if you're anything like me you might be using Spotify to listen to music on your iMac/MacBook, and also use the built-in keyboard media keys to control Spotify while it's minimi...
Overview This is going to be a quick guide on how to setup VPN access on your Cisco router (in my case a Cisco 887 router with VDSL), for remote clients to access your network and ...
ShellSock - Patching Unless you've been under a rock for the last few days you've probably heard about the new Bash exploit (CVE-2014-6271) 'ShellShock' that allows remote code exe...
Overview After spending quite a bit of time getting my Cisco VDSL router working with PPPoE I though others might benefit from an example configuration, please read through and tun...
Cisco IOS has a build in Command Scheduler called KRON, with very similar functionality to the Linux CRON service many will be familiar with, we are able to use this scheduler to r...
The Problem After the bash exploit 'shellshock' was released a few days ago I've been going around my servers and applying the required patches, however after doing a 'apt-get upda...
[](http://pingbin.com/wp-content/uploads/2014/08/yum-via-proxy-yum-package-management-mascot.png)Introduction. TL,DR; - Go to Installing Squid Yum is a great package manager for Ce...
[](http://pingbin.com/wp-content/uploads/2014/03/bwMeterCase.jpg)The home and small business routers these days that us geeks would be interested in buying are shipping with SNMP s...
So at PingBin we have decided to start doing a weekly round up of the great Raspberry Pi projects, the plan is to have one of these every week assuming you Pi hackers pump out enou...
In this post I will take you through the fairly simple task of getting your Raspberry PI to control an LED via the GPIO interface, the task is simple however it lays a great founda...
<figure> [](http://pingbin.com/2012/12/raspberry-pi-web-cam-server-motion/raspberry-pi-web-cam-server-motion/) <figcaption> Raspberry PI Web Cam </figcaption> </figure> The Raspber...
[](http://pingbin.com/2012/12/telnet-access-netgear-dgnd3700/dgnd3700-product-image-low-resolution73-17289/) Quite a few netgear devices come with a hidden page that you can browse...
[](http://pingbin.com/2012/12/setup-wifi-raspberry-pi/screen-shot-2012-12-23-at-13-26-05/)The Raspberry Pi has many great features straight out of the box, unfortunately WiFi is n...
Once you login to a device via SSH the first thing you'll be presented with is a banner of text. This is the MOTD (Message of The Day) and can actually be set to any text that you ...
Ideas for your Raspberry Pi! The chances are you have a Raspberry Pi or there's one on the way to you, now you are starting to think about what kind of cool things you could build ...
[](http://pingbin.com/2012/12/view-live-logfile-realtime-linux/2032546019c80084ed99/)As a system admin or even just a Linux enthusiast you will most likely find yourself dabbling w...
[](http://pingbin.com/wp-content/uploads/2012/12/DGND3700-Product-Image-Low-Resolution73-17289.jpeg)I have already done a post about getting telnet access on to your DGND3700 netge...
[](http://pingbin.com/2012/12/import-video-itunes-copying-files-itunes-library/itunes10music/)When you import anything into iTunes by default it will create a copy of the content i...
[](http://pingbin.com/2012/12/restart-finder-mac/osx-finder-restart/)If your like me and rarely turn off your computer (any further than a 'sleep') then your OSX finder can get a b...
[](http://pingbin.com/2012/10/configuring-cisco-router-nat/cisco7604router/)Traditionally Cisco based NAT on routers and firewalls was done in a fairly singular direction by defini...
[](http://pingbin.com/2012/09/asterisk-sip-packet-debug/asterisk/) Asterisk and FreePBX is an Open Source PBX which can be installed on Linux, and is commonly used to provide PBX s...
When first installing your raspberry pi you mostlikey used the linux tool 'DD' to copy over your operating system image over to your SD card, as I did in this guide. The problem wi...
[](http://pingbin.com/2012/07/howto-install-munin-raspberry-pi/index/)Munin is a great open source tool for graphing performance metrics (amongst other things) of your linux hardwa...
[](http://pingbin.com/2012/07/format-raspberry-pi-sd-card-mac-osx/raspberry-pi-need-to-know/)So to get started with the Raspberry PI you will obviously need the board, a USB power ...
I have been doing quite a bit of development work recently on CentOS and Debian systems, I am sure like me you will find yourself endlessly typing the same commands over and over a...
[](http://pingbin.com/2012/01/memcache/memcache-2/) What is MemCache? Some of you have probably just stumbled along this post without actually knowing what MemCache does, so here i...
[](http://pingbin.com/2012/01/howto-rsync-backup-ftp-server/img0129yb8ts1/)My hosting company is great, with all of their dedicated servers even the low cost ones users get 100GB f...
[](http://pingbin.com/2012/01/iptables-blocking-outbound-traceroute/tux-with-a-gun/)I have seen a few people having problems with getting outbound traceroutes to work, normally jus...
[](http://pingbin.com/2012/01/nginx-php-remoteaddr-proxy-varnish-cache/varnish-cache/)Typically your public web server with consist of two principle pieces of software, the web ser...
[](http://pingbin.com/2011/12/moved-cloud-vpss/cloud-4/)As the title probably suggests this post is going to be somewhat single sided, however I will try outline the benefits of VP...
I recently installed Varnish Cache infront of all of my websites on this server, good news was the websites got a lot faster and the cache was great and offloading the effects of t...
So may times I see people installing MySQL on a linux box using a command like the below, and then trying to secure the server, usually this ends up fairly insecure and open for ha...
Overview SCP is a command line tool which allows files and directories to be copied between two Linux servers or computers via a network - The tool is very similar to the commonly ...
[](http://pingbin.com/2011/12/python-thoughts/python-logo-master-v3-tm-flattened/)I have recently been playing around with python in my lack of "spare time", it's quite a powerful ...
\[caption id="attachment\638" align="alignleft" width="300"\][](http://pingbin.com/2011/12/billion-8200n-vdsl-snmp/688704-219969/) Billion 8200N vDSL\[/caption\] My ISP recently la...
![Cisco router missing startup-configuration after reload [FIX]](/content/posts/2011/12/cisco-router-missing-startup-configuration-reload-fix/images/2032546019_c80084ed99-500x219.jpeg)
[](http://pingbin.com/2011/12/cisco-router-missing-startup-configuration-reload-fix/initial-config-dialog/) I recently got my hands on a few Cisco 1760 routers to make up part of...
I have recently been working on a few small frame relay networks, traditionally the networks will have two components, either a router that will "map" IP addresses to DLCI's to tra...
\[caption id="attachment\576" align="alignright" width="358"\][](http://pingbin.com/2011/07/disable-crons-email-alerts/exim-mail-throughput/) Exim Mail Throughput (With Cron)\[/cap...
[](http://pingbin.com/index.php/2011/07/host-to-replace-openssh-and-install-dropbear/dropbear/)OpenSSH is used on the majority of linux systems that require SSH access, however in ...
[](http://pingbin.com/index.php/2011/07/scan-your-webserver-with-nikto/nikto/)Targeted hacking attacks are almost impossible to stop as the likes of Sony found out recently, howeve...
\[caption id="attachment\535" align="alignleft" width="300"\][](http://pingbin.com/index.php/2011/07/how-to-install-munin-on-debian/munin-processing-time/) Munin Graph\[/caption\] ...
\[caption id="attachment\491" align="alignright" width="300"\][](http://pingbin.com/2011/07/irc-bouncer-keep-connected-and-history/znc/) ZNC configuration\[/caption\] IRC is still ...
[](http://pingbin.com/2011/07/view-the-routing-cache-and-hits/routeusage/) Most of us check the normal thinks like traceroute or arp on a web server, but actually checking recent r...
After a recent server move I had an issue where I kept getting a blank page after publishing a post to the blog, after turning on PHP error's is became obvious there was actually a...
\[caption id="attachment\477" align="alignleft" width="250"\][](http://pingbin.com/2011/07/how-to-find-large-files-on-linux-server/harddisk/) Hard Disk Drive\[/caption\] One of the...
<figure> [](https://pingbin.com/2011/07/install-links-to-test-a-website-via-sshcli/links/) <figcaption> Viewing an Website from Links </figcaption> </figure> Links (also called Lyn...
\[caption id="attachment\458" align="alignright" width="381"\][](http://pingbin.com/programming/php/2011/06/centos-secure-tmp/attachment/centos3) CentOS Logo\[/caption\] This guide...
\[caption id="attachment\429" align="alignleft" width="357"\][](http://pingbin.com/servers/scom-servers/2011/06/hyper-v-integration-components-for-centos/attachment/centos) CentOS ...
Note: HSRP is Cisco proprietary, however VRRP also contains similar functionality. By design all networks should incorporate redundancy throughout, for maximum uptime all equipment...
Google can get lost or confused when browsing your website, a perfect example of this is my website www.whatportis.com there is really only a few pages that make up the whole site....
So when you import a virtual machine template in self service portal you might not see your library server available, for some strange reason there are no error messages either whi...
[](http://pingbin.com/network/2011/02/cisco-pix-506e-hangsstuck-on-boot/attachment/ciscologo) I managed to get my hands on a few old PIX 506e firewalls, while doing a quick test of...
[](http://pingbin.com/servers/scom-servers/2011/02/scom-gateway-approval-tool-already-exists/attachment/microsoft-sql-server-2008-logo-490x306)So you might be getting the below err...
[](http://pingbin.com/servers/scom-servers/2011/02/scom-gateway-approval-tool-hangs/attachment/scom)If your using Microsoft System Center Operations Manager to monitor agents that ...
[](http://pingbin.com/servers/2011/02/centos-nginx-php-fpm-part-2/attachment/php-fpm-logo)So Nginx is now installed if you followed part 1, before we configure that though it's pro...
[](http://pingbin.com/servers/2011/02/centos-nginx-php-fpm-part-3/attachment/nginxphp128128)Great to see you have made it this far. Good news is that hopefully by the end of this p...
[](http://pingbin.com/servers/2011/02/centos-nginxphp-fpmmysqlbind-part-1/attachment/nginxsmall)So I am currently setting up a new virtual server with ngnix, php-fpm and the usual ...
[](http://pingbin.com/servers/2011/02/linux-centos-hyper-v-time-drift/attachment/linux-time)Overview In virtual environments CPU processing is shared between the virtual machines, ...
[](http://pingbin.com/2011/02/ubuntu-eth0-missing-after-reboot/ifconfig/)I have seen this problem a lot on hyper-visors that use dynamic MAC addresses over the past few weeks, such...
[](http://pingbin.com/servers/2011/02/scvmm-high-ram-usage-and-crashing/attachment/scvmm-2)As standard SCVMM (system center virtual machine manager) will save all job logs for the ...
I have been playing around with BIND DNS and the GeoIP/GeoDNS patch for a while now. This error always seems to pop up on CentOS, and Google didn't show that much. checking for C c...
I recently had a problem trying to delete a few thousand files off a windows server, which all contained a common string. Windows search and delete just couldn't do it without cras...