Posts

Linux gateway/router + unable to access certain (HTTPS) sites

· Errors, Linux, Networking

I’ve had an issue for a while, being unable to access certain websites such as https://fon.com, but also certain parts of the Apple, Fortis and Microsoft site, while other (https) websites worked fine.

Running Wireshark I found that only about 5ish packets got transferred, and all other data to that website abruptly stopped.

I’m using ADSL (EDPnet), which has an MTU of 1492, however, I was able to access all websites from the router (using lynx, for example), but not from any other PC within the network.

Brussels-Midi + iRail

· Errors, iRail

Apparently the NMBS/SNCB website now makes a difference between “Brussels-Midi” and “Brussels-Midi Eurostar”; same station, different track.

Due to this change, iRail was no longer able to provide any scheduling information which included Brussels-Midi.

I’ve made a quick and dirty work around (by including “+ Eurostar” in the drop down menu), solving this bug.

However, please, NMBS/SNCB, please please please provide an API or report such changes to web developers.

As it is now, if you manually fill in Brussels-Midi and do not add the Eurostar text, the iRail website will not be able to to look up the requested information.

Public DNS server

· Networking

I have been running a public DNS server for private purpose (never liked my ISP’s DNS servers, and the root servers were usually located too far away (at least those with easy to remember IPs).

Anyway, been testing it since this summer, and so far it’s been working great.

the DNS server running on a Debian virtual machine, hosted by Rootspirit, near Amsterdam.

IP address: 85.12.6.171

Hostname: vm1.rootspirit.com

Might not be an easy to remember IP address (unlike 4.2.2.1), but as I use that IP pretty much every day, it’s okay for me. ;)

OpenVPN & Windows 7

· Errors, Networking, Software, Windows

There’s a great GUI out for OpenVPN & Windows, located here.

However, this GUI includes an old OpenVPN, that is no longer compatible with Windows 7 and Windows Vista.

The TUN/TAP driver will be blocked due to compatibility issues, and when trying to connect to a VPN, you’ll get an error along the lines of:

All TAP-Win32 adapters on this system are currently in use

The simplest fix, is to install the GUI package (including the old OpenVPN binaries), and reinstall OpenVPN afterwards.

Turning off Driver Signing in Windows 7

· Errors, Software

To disable it, as administrator, open cmd.exe (win button + R -> cmd -> [enter]), and copy paste the following 2 lines:

bcdedit.exe -set loadoptions DDISABLE_INTEGRITY_CHECKS bcdedit.exe -set TESTSIGNING ON

Reboot, enjoy. No more annoying messages. :)