E-Mail header manipulation with Postfix


So the company I’m working for requires some agents from our partner to be able to send email on our behalf, using our domain, from their site. We can give them access to our Office365 smtp server but then we need to deal with authenticating them without giving them too much access, and currently there’s…

Realtek r815x USB 3.0 Ethernet adapter on Linux


So if you’re using Ubuntu 14.04 (and derivatives) and you are having trouble using an RTL815x based USB ethernet adapter, like connection being dropped after a while, or the interface simply refusing DHCP, please make sure that you’re using the latest available kernel for your distro. To check: ikhsan@SlaveE:~$ uname -r 3.13.0-37-generic If you’re using…

Publishing a Webmethod IS WSDL behind a NAT


So I need to publish a webservice to one of our business partner. For security (through obscurity, HA!) we decided to put the ESB behind NAT. Obviously, WSDL generated by Webmethods will point to the original IP, instead to the newly assigned NAT IP. Check your WSDL for to see which IP is used on…

IIS Authentication failed on locally hosted website with custom/alternate FQDN


So, the company I work for use nintex workflow to extend Sharepoint workflow capabilities. This includes nintex consuming webservice hosted on sharepoint’s IIS. The problem starts when one of the webservices are hosted on the sharepoint server’s IIS, but uses alternate Fully Qualified Domain Name (FQDN) On IIS log you’ll see: 2015-02-24 06:52:14 172.16.1.188 GET…

AIX 0506-324 and 0516-1736


Transporting servers from one site to another site is always a painful job. There are a lot of precautions that must be addressed, such as backup, for data and OS partition A couple of days a go, we moved a server from production data center to our DR site. The process went smoothly, we were…

My 10 essential Gnome-Shell extensions


While hating Gnome Shell seems to be a popular stance among linux users, I actually like it, and have been using it since version 3.4, to get away from that monstrosity called Unity (which is as of now is actually quite good). Anyway, while it’s not as customizable as combination of Gnome 2, Compiz, and…

Cleaning a Logitech M950 Performance MX Scroll Wheel


So, recently, the scroll wheel of my 4 years old M950 Performance MX got stuck. While the usual clicky wheel mode is not affected , the free  scrolling mode is totally unusable. So I decided it’s time to clean it up. Here’s what you need: A medium sized regular slot screwdriver A small and medium…

DNSCrypt on Mac OSX


So after i posted a how to on using dnscrypt on ubuntu, a friend of mine asked for a how to of dnscrypt on OSX. I happen to have a Yosemite instance lying around, so why not 😀 There are a couple of ways to do this. The first one is to use it as…