Guides
How website valuation actually works, what traffic estimates can and cannot tell you, and which once-standard metrics have quietly stopped existing.
How to view status of a service on Linux using systemctl
On Linux systems using systemd, you can use the "systemctl" command to view the status of a service. The basic syntax for the command is:rn rn rn systemctl status rn rn rnFor example, to check the status of the Apache web server, you can use the command:rn rn rn systemctl status httpdrn rn rnThis co
How to install less on CentOS / RHEL / Fedora
Less is a command-line tool that allows you to view text files in a paginated manner. You can install it on CentOS, RHEL, and Fedora using the package manager. ( https://www.fi-di.com/ ) n To install less on CentOS or RHEL: n n Run the command “sudo yum install less” to install the less
How to write the output into the file in Linux
In Linux, you can write the output of a command to a file using the “>” operator. The basic syntax is: n n n command > file n n n For example, if you want to write the output of the ls command to a file named “list.txt”, you would run the following command: n n n ls >
How to set/change FQDN on Ubuntu 20.04 Linux
To set or change the Fully Qualified Domain Name (FQDN) on Ubuntu 20.04, you can follow these steps:rn rn Open the terminal by pressing "Ctrl + Alt + T" or by searching for "terminal" in the start menu. rn Run the command "sudo nano /etc/hostname" to open the hostname configuration file in nano text
How to add days to date and get new date on Linux
To add days to a date and get the new date on Linux, you can use the date command along with the + operator. The basic syntax for adding days to a date is:rn rn rn date -d "current date + number of days" rn rn rnFor example, to add 7 days to the current date, you would run the following command:r
Set up automatic unattended updates for Ubuntu 20.04
Ubuntu 20.04 includes a built-in tool called “unattended-upgrades” that allows you to set up automatic updates. Here’s how you can set it up: n n First, install the package by running the command “sudo apt install unattended-upgrades” n Next, configure the package by ed
How to check TLS/SSL certificate expiration date from command-line
You can check the expiration date of a TLS/SSL certificate from the command line using the "openssl" tool. Here's an example command that checks the expiration date of a certificate for the domain "example.com":rn rn rn openssl s_client -connect example. com : 443 -servername example. com 2 > /de
How to delete container with lxc (LXD) command on Linux
To delete a container using the lxc (LXD) command on Linux, you can use the following command:rn rn rn lxc delete <container name>rn rn rnFor example, if the container name is "mycontainer", you would run the following command:rn rn rn lxc delete mycontainerrn rn rnThis command will delete the
How to install dnscrypt proxy with adblocker on Linux
On Linux, you can use the "ifconfig" or "ip" command to check the number of dropped packets per interface. You can use the following command to show the number of dropped packets for a specific interface, for example, "eth0":rn rn rn ifconfig eth 0 | grep droppedrn rn rnThe output of the command
How to show dropped packets per interface on Linux
Installing dnscrypt-proxy with an ad-blocker on Linux can be done by following these steps:rn rn Start by installing dnscrypt-proxy by following the instructions on the official website, this could vary depending on the distribution you are using. rn Next, you will need to install an ad-blocker such
How To Install Speedtest-cli On a FreeBSD To Check Internet Speed
Speedtest-cli is a command-line tool that allows you to test your internet connection speed. Here's how you can install it on a FreeBSD system:rn rn First, you'll need to have the "python" package installed on your system. You can check if it's already installed by running the command "python3 -V".
Alpine Linux set up WireGuard VPN server
Setting up a WireGuard VPN server on Alpine Linux can be done by following these steps:rn rn Start by installing the WireGuard package by running the following command: rn rn rn rn apk add wireguard-tools wireguard-virtrn rn rn rn Create a new directory to store the configuration files by running th
How to disable firewall and NAT rules on the LXD bridge
LXD (Linux Container Daemon) uses a bridge to connect the containers to the host network. By default, the bridge comes with firewall and NAT rules enabled, which can be configured to allow or block specific traffic. To disable firewall and NAT rules on the LXD bridge, you can follow these steps:r
How to check TLS/SSL certificate expiration date from command-line
You can check the expiration date of a TLS/SSL certificate from the command line using the "openssl" tool. Here's an example command that checks the expiration date of a certificate for the domain "example.com":rn rn rn openssl s_client -connect example. com : 443 -servername example. com 2 > /de
How to install Go [golang] on Ubuntu Linux
To install Go (Golang) on Ubuntu Linux, you can follow these steps:rn rn Download the latest version of Go from the official website by running the following command: rn rn rn rn wget https : //golang.org/dl/go1.x.linux-amd64.tar.gz rn rn rn rn Extract the downloaded archive by running the following
How to convert pdf to image on Linux command line
There are several ways to convert a PDF to an image on the Linux command line. One popular tool is "ImageMagick". You can install it by running the command:rn rn rn sudo apt- get install imagemagickrn rn rnOnce ImageMagick is installed, you can use the "convert" command to convert a PDF to an image.
How to install MySQL server on CentOS 8 Linux
To install MySQL server on CentOS 8, follow these steps:rn rn Start by enabling the MySQL module by running the following command: rn rn rn rn sudo dnf module enable mysql : 8.0 rn rn rn rn Next, install the MySQL server package by running the following command: rn rn rn rn sudo dnf install mysql-se
How to enable rc.local shell script on systemd while booting Linux system
To enable an rc.local shell script on a systemd-based Linux system during boot, you can follow these steps:rn rn Create a file named "rc-local.service" in the "/etc/systemd/system" directory. rn Open the file in your text editor and paste the following content: rn rn rn rn rnDescription=/etc/rc.loca
How to install VirtualBox on Ubuntu 20.04 Linux LTS
To install VirtualBox on Ubuntu 20.04 LTS, follow these steps:rn rn Add the VirtualBox repository to your system by running the following command in the terminal: rn rn rn rn sudo add -apt-repository "deb https://download.virtualbox.org/virtualbox/debian focal contrib" rn rn rn rn Download and add t
How to install MySQL server on Ubuntu 20.04 LTS Linux
To install MySQL Server on Ubuntu 20.04 LTS Linux, follow these steps:rn rn Open the terminal by pressing "Ctrl + Alt + T" or by searching for "terminal" in the start menu rn Run the command "sudo apt update" to update the package list rn Run the command "sudo apt install mysql-server" to install My
2,685 guides published.
