Rahul Sahu 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: date -d “current date + number of days” For example, to add 7 days to the current date, you would run … Read more
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: First, install the package by running the command “sudo apt install unattended-upgrades” Next, configure the package by editing the “/etc/apt/apt.conf.d/50unattended-upgrades” file. In this file, you can set the parameters for the automatic … Read more
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”: openssl s_client -connect example.com:443 -servername example.com 2>/dev/null | openssl x509 -noout -dates The “-connect” option specifies the domain and port to … Read more
To delete a container using the lxc (LXD) command on Linux, you can use the following command: lxc delete <container name> For example, if the container name is “mycontainer”, you would run the following command: lxc delete mycontainer This command will delete the container and all its associated data, such as its configuration, snapshots, and … Read more
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”: ifconfig eth0 | grep dropped The output of the command will show the number of dropped … Read more
Installing dnscrypt-proxy with an ad-blocker on Linux can be done by following these steps: Start by installing dnscrypt-proxy by following the instructions on the official website, this could vary depending on the distribution you are using. Next, you will need to install an ad-blocker such as dnscrypt-proxy-blocklist. To do this, you can download the blocklist … Read more
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: 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”. If it’s not installed, you can … Read more
Setting up a WireGuard VPN server on Alpine Linux can be done by following these steps: Start by installing the WireGuard package by running the following command: apk add wireguard-tools wireguard-virt Create a new directory to store the configuration files by running the following command: mkdir -p /etc/wireguard Generate a private key for the server … Read more
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: Stop the LXD service … Read more
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”: openssl s_client -connect example.com:443 -servername example.com 2>/dev/null | openssl x509 -noout -dates The “-connect” option specifies the domain and port to … Read more