Docker Images Not Starting

After updating my Linux host yesterday, the docker images failed to start with the following error:

Error starting userland proxy: listen tcp6 [::]:9091: socket: address family not supported by protocol

For some reason IPv6 (the hint is tcp6) is screwing things up. The problem is that I disabled IPv6 from the start on this host. Mainly because of some concerns in regards of routing and internet accessibility (I have a formal IPv6 subnet at home).

After about an hour of troubleshooting I changed the docker-compose.yaml file to include the actual IP address of the host instead of just the ports the container uses.

The old:

        ports:
          - '9091:9091'
          - '8888:8080'

New:

        ports:
          - '192.168.0.1:9091:9091'
          - '192.168.0.1:8888:8080'

Restarting the docker images went just fine after this. So I guess the update I ran yesterday included a docker update that basically thinks that you have IPv6 enabled by default. The problem is that I couldn’t find documentation on how to disable this globally.

Add Routes To Ubuntu Server

Routes (non-default ones) can be added to the platform by using the interfaces configurations file.

Just add the following to the interface configuration:

up route add -net <destination_network> netmask <netmask> gw <gateway_address>

Example:

$ cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto ens160
iface ens160 inet static
        address 192.168.168.1
        netmask 255.255.255.0
        network 192.168.168.0
        broadcast 192.168.168.255
        gateway 192.168.168.254
        # dns-* options are implemented by the resolvconf package, if installed
        dns-nameservers 192.168.0.1
        dns-search mydomain.com
        up route add -net 172.16.16.0 netmask 255.255.255.0 gw 192.168.168.30

Ubuntu 'Hardy Heron' Released

As of yesterday, the latest Ubuntu release 'Hardy Heron' is available for download (both client and server). Every time a major Linux distri(bution) hits 'the shelves', the Linux community roars. With each release (Ubuntu or whatever flavor) the Linux community gets closer, and closer to Windows.

Even though the OS itself is getting better and better. It still lacks the support of decent major software like Adobe Creative Suite, etc. It's missing the software people use in every day (business)life.
Sure, there a million different ways of running Microsoft Office or Adobe Photoshop on a Linux OS, but these require a commercial piece of software (CrossOver) , or in depth knowledge of the OS to make it work (Wine in some cases). Two things that shouldn't be required. Not if you're used to Windows (or Apple's OSX). And even if you find a 'substitute' it's most likely to have an awful user experience.

The average housewife won't use Linux, because her friends all use Windows. All those nice little Windows programs, which makes life easier (or a living hell with all the mal/spyware out there). So if the Linux community wants to make a difference they need to create some sort of critical mass (by their selves, or by Microsoft screwing up) to get the attention of the 'normal' user. But in a community where there's no real (commercial) business model, it's gonna be damn hard.

Microsoft created this critical mass by playing (probably) the best marketing trick in the world; Release Windows 95, and turn a blind eye to those who use a pirated copy at home. The home users create demand on the workfloor, so businesses start to use it on their workstations. Soon everyone was addicted. And now it's damn hard to beat the addiction.

B.t.w., Apple is doing it a lot better. They created a nice and stable OS (just like the average Linux desktop distribution), BUT the OS has ALL the relevant drivers for the hardware used. ALSO they have a complete (and cheap) software suite (iLife and iWork), which is more than enough for the average family. No need to search the caverns of the Internet for software, and they look and feel the same as the OS.

So, I guess that my conclusion is that the OS is nearing perfection, but it (Linux in general) lacks good and decent third party software (and a good marketing machine :) )

In the mean time; I'm gonna upgrade my Linux (mail, web, and ssh) servers at work to 'Hardy Heron'.