cli

Today, I started dabbling in doing some screen recording in Linux and while I could find programs to record the screen, I couldn't get the audio working as I wanted. By default, the programs record either the system audio, or the mic audio (or if the program is shit, neither); they don't record both the system audio and the mic audio. The fix for this on my Kubuntu 16.04 (Xenial) system which uses the Pulseaudio system to manage audio is as follows:

So I've been having trouble getting a Windows program to work in Wine (Windows emulator) on my Kubuntu 16.04 system. It's a simple program but one that requires .NET 3.5. Considering its simplicity, I thought that it'd work fine using just Mono and it did fire up. However, it wasn't terribly usable throwing constant errors and being very buggy. So I had to also install .NET 3.5.

On a fresh Debian 8 (Jessie) install, I found that I couldn't update the package repository using apt because security.debian.org was always timing out. While I initially thought this was because of a mirroring issue oslt, it turns out that it's because I was trying to access it via the IPV6 that my VPS was using. Turns out that the fix is reasonably straightforward. You simply tell apt not to bother with ipv6 and simply use ipv4 … like so:

echo 'Acquire::ForceIPv4 "true";' >> /etc/apt/apt.conf.d/99force-ipv4

I usually find it a chore to edit the MySQL conf files (as for one, I often have no idea which my.cnf file to edit!) One way to work around this issue, particularly if you want to change a setting temporarily, is to simply enable the change dynamically via the MySQL command prompt. This can be accomplished by modifying "global" variables which can be listed with commands like so:

SHOW GLOBAL VARIABLES;

I ran into the following error while running a script that was performing backups of files via rsync over ssh.

error: ssh: connect to host foo.example.com port 22: Connection refused rsync: connection unexpectedly closed (0 bytes received so far) [sender] rsync error: unexplained error (code 255) at io.c(601) [sender=3.0.7]

I ran into the following spiel when I attempted to SSH to a host just now:

Setting the timezone of an Ubuntu (14.04, Trusty) or Debian (7, Wheezy) server from the command-line is simple. Just run dpkg-reconfigure tzdata and follow the on-screen prompts. However, if you are running an unattended installation, you might want to avoid interactive prompts and just gets the job done. To do this, simply run

$ sudo ln -sf /usr/share/zoneinfo/America/Anchorage /etc/localtime

Browse through /usr/share/zoneinfo/ to locate your timezone.

On a new Ubuntu 14.04 (Trusty) LTS server, I ran into the following:

$ su -c /bin/bash foo
bash: cannot set terminal process group (3987): Inappropriate ioctl for device
bash: no job control in this shell

However, the su procedure worked and I was logged in as user foo.

Running a program in "privileged" mode (i.e., as an administrator) is as simple as pressing the START button, finding the program, right-clicking its name, and choosing Run as administrator. (You can similarly also choose to Run as different user, but to get this option, you'll need to press SHIFT before the right click.) This should bring up Windows' pop-up asking you to allow the program to be run as administrator where you click Yes and Robert is your uncle.

An easy avenue in Windows to change the encoding of a file is to open it in Notepad and then use the Save As option which allows you to specify the encoding that the file should be saved using ...

Linux does offer a bunch of solutions too, albeit perhaps relatively less simple: