Posts Tagged ‘administration’
Great post on Stack Exchange, How to correctly add a path to PATH?.
Lots of issues with Network Manager in Ubuntu 16.06 LTS, in particular connecting to wifi after suspend/resume. Restarting the Network Manager service seems to work for me.
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sudo systemctl restart network-manager.service |
Here’s the fix for a problem where Nautilus shows hidden files by default. $dconf-editor org -> gtk -> settings -> file-chooser Uncheck show-hidden Close Nautilus and open again
Suppose you have a monthly process to archive some data such as log files etc. Each month a separate archive file is created, and so after a few months you will have several archive files – for example as shown below: archive.2014-08.tar.gz archive.2014-09.tar.gz archive.2014.10.tar.gz Now if you wish to extract your data from all three […]
FPrint is a PPA with packages for fingerprint-based authentication. Website includes good documentation on how to install and set it up.
This is a great one-liner which removes old kernel images and frees up space in your boot partition:
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$sudo apt-get purge $(dpkg -l linux-{image,headers}-"[0-9]*" | awk '/ii/{print $2}' | grep -ve "$(uname -r | sed -r 's/-[a-z]+//')") |
This comes from the top answer to a question on ask ubuntu.
Changing the port number of SSH daemon is a quick way of reducing the number of SSH brute force attacks your server might face (check the file /var/log/auth.log to see if there are many failed SSH login attempts). Just to be on the safe side, create a backup copy of the SSH daemon config file. […]
Here are a few things you can try if you get the BADSIG error in Update Manager: Run the following commands from terminal shell: sudo apt-get clean sudo apt-get update -o Acquire::http::No-Cache=True Change the Ubuntu server from which updates are downloaded: System > Software Sources > Ubuntu Software tab > change the selected server in […]
Sometimes you may want to log in with a different user account in Terminal without logging out from your X session or switching to an unused virtual console. There are two different approaches to do this in Ubuntu: interestingly, it is possible without even knowing the other user’s password. Approach 1: if you know the […]
Oracle Database XE (Express Edition, sometimes also referred to as Apex) comes with an embedded web interface for administration. By default the HTTP port of this web interface is 8080. This can be checked by running the query below when logged in as system: SQL> select dbms_xdb.gethttpport from dual; In order to change the port […]