Sometimes Journal Log files can take up a lot of diskspace. Here is how to make a fast cleanup
Delete logfiles and shrink until 500 MB in total size
You will get an result that look like this
This freed up a lot of diskspace, but it may not have giving you as much free space as you think, if your value that you wan’t to shrink to is to low then the command will adjust to the lowest possible value
Get the size of the Journal Logs
Now here is how to see the current Journal disk usage
A local configuration files for ssh where you have all the “shortcuts” you need to contact another computer with openssh server installed. In my example it’s Linux and Windows Servers that I need to manage.
A shortcut could be
to manage node1.pvangsgaard.com
Here is How To setup SSH and config file
You can use powershell prompt or DOS promt, but i will recommend using Hyper Terminal, you can download and install it from https://hyper.is/
if you haven’t used SSH before then generate a key-pair with
It will look like this
Now the ssh-keygen have made a directory containing a ssh-keypair
The directory is in your path and in my case C:\Users\peter\.ssh\
go to the .ssh directory and list content with
now start notepad or any editor and write a config for a server, in this example it’s node1.pvangsgaard.com
If you have another RSA key that is provided by your company then just alter id_rsa filename to the one that you need also remember to change path and servername 😉
Now save the config file in your ssh dir like C:\Users\peter\.ssh\
It’s very important that the file is named config and NOT config.txt 😉
Now tryout the new config by connecting
Note that is is only working in DOS or Powershell, if you need it in a Linux container in Windows then you have to alter the path and then it will work.
If you use Hyper there is a little bug when exiting the terminal, you need to close all connections and type exit in the last one to close the app.
If you are into retro computing and need to copy one of the old floppy .img disks to a diskette then it can be done with dd for unix/linux or by using the windows port of dd
In my case i had 2 computeres with a floppy drive, one was a Windows XP machine and the other was a much older DOS computer without USB or network and i need to test FreeDOS and MS DOS 6.2 but i only had files like disk1.img downloaded from the internet and blank 1.44 floppy disks.
In my first attempt i tried to use a Windows program called winimage but it was not able to run on the old Windows XP, maybe it needed a servicepack or somthing else, so the fastest way was to find a simpler and faster solution and dd came in to my rescue.