There are several tools you can use to monitor outgoing bandwidth, latency, and jitter on a Unix or Linux system. Some of the most commonly used tools include: ping: The ping command is a simple utility that sends ICMP echo requests to a remote host and measures the time it takes for the host to … Read more

The wget command-line utility can be used with a Squid proxy server by setting the http_proxy environment variable. Here’s an example of how to use wget with a Squid proxy server: http_proxy=http://squid-proxy-server-address:port wget http://example.com/file.zip Replace squid-proxy-server-address and port with the address and port of your Squid proxy server, and replace http://example.com/file.zip with the URL of … Read more

There are several commands you can use in Unix to view disk usage information, including: df: The df command displays information about disk space usage on your file system. By default, df shows disk usage information for all mounted file systems. Here’s an example of how to use df: df -h The -h option makes … Read more

In Unix or Linux, you can open TCP and UDP ports using the iptables command. iptables is a command-line firewall utility that allows you to manage the firewall rules on your system. Here’s an example of how to open a TCP port (e.g., port 80) using iptables: sudo iptables -A INPUT -p tcp –dport 80 … Read more

To find symbolic links (symlinks) in Unix or Linux, you can use the find command in combination with the -type option. The -type option allows you to search for specific types of files, including symbolic links. Here’s the basic syntax for finding symlinks: find /path/to/search -type l Where /path/to/search is the directory or file system … Read more

In Ubuntu Linux, the firewall is managed by the UFW (Uncomplicated Firewall) service. To disable the firewall, you can stop the UFW service and then disable it from starting automatically at boot time. Here’s how you can disable the firewall in Ubuntu Linux: Stop the UFW service: sudo systemctl stop ufw Disable the UFW service … Read more

To open .cbr files on Linux, you can use a variety of comic book reader applications such as: MComix: A user-friendly comic book reader that supports CBR, CBZ, and PDF files. QComicBook: A lightweight comic book reader that supports CBR, CBZ, and PDF files. Comix: A feature-rich comic book reader that supports CBR, CBZ, and … Read more

To change the password in UNIX, you can use the passwd command in a terminal window. To change your own password, simply type passwd and press Enter. You will be prompted to enter your current password, followed by your new password and a confirmation of your new password. For example: $ passwd Changing password for … Read more

To extract a .lzma tar ball in Linux or Unix, you need to first install the lzma utility, which is used to decompress the .lzma file. Once the lzma utility is installed, you can extract the tar ball using the following command: lzma -dc filename.tar.lzma | tar -xf – Here, filename.tar.lzma is the name of … Read more

To install the PostgreSQL interface for Perl (perl-DBD-Pg) on a system running CentOS or Red Hat Enterprise Linux, you can use the yum package manager. First, make sure that the EPEL repository is enabled on your system. You can check if it is enabled by running the following command: yum repolist enabled | grep epel … Read more