Linux and Unix, Open Source, Linux Howtos
It is a best practice to backup a configuration file before performing any activity on a Linux system, which helps you to compare the configuration files in case of any …
How to Backup Configuration Files on Remote Linux System Read More
xfs_repair command repairs corrupt or damaged XFS filesystems. It’s highly scalable, high-performance and is designed to effectively repair even very large file systems with many inodes. Unlike other Linux file …
How to Check and Repair XFS Filesystem in RHEL Read More
The fsck (stands for File System Consistency Check) is used to check and repair one or more Linux filesystems. This check will run automatically at boot time when a filesystem …
How to Check and Repair EXT4 Filesystem in Linux Read More
Deleting (or removing) a file in Linux from the command line can be done using the rm command. It allows you to delete more than one files at once. Also, …
How to Remove Multiple Files at once on Linux Read More
As a Linux administrator, you may know how useful the command line can be to work with various activity such as installing the application, installing the system patch, and restarting …
How to Run Multiple Commands at once in Linux Read More
OpenSSL is a toolkit and a cryptography library that support the Secure Sockets Layer (SSL)) and Transport Layer Security (TLS) protocol on Linux. It provides cryptographic protocols to varies applications …
How to Check Supported TLS and SSL Ciphers (version) on Linux Read More
By default, the sendmail runs locally on localhost.localdomain and tries to send the mail with the root@localhost.localdomain to the remote smtp server, which would get rejected as the localhost.localdomain will …
How to configure a SMTP relay host in Sendmail Read More
Most companies scan infrastructure devices for vulnerability every quarter, but the duration may vary depending on the company’s ITSM policy. After the security scan, if the security team finds vulnerabilities …
How to check if an RHEL system is vulnerable to a CVE Read More
Linux top command is widely used by Linux system administrators in real time to check system resources utilization such as CPU, disk I/O, system load average, running processes and memory …
How to Capture top command output to a file Read More
Finding hardware information on HPUX is always easy when you use the right commands. In this guide, we will show you how to check the CPU details of the server …
How to find the CPU information in HP-UX Read More