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2076 articles
How to disable ICMP and ICMPv6 redirects in Linux
Steps to block and disable ICMP redirects for IPv4 and IPv6 in Linux using firewalld and accept_redirects. You can disable these if host is not running as a …
6 simple methods to check if ipv6 is enabled in Linux
How to check if IPv6 is enabled or disabled in my Linux server. Check for any process listening on IPv6 socket using netstat, lsof or ss command
Linux disable IPv6 properly (with or without reboot)
Detailed guide with list of best practices to disable Ipv6 in Linux. You can use grubby, grub2-editenv, sysctl to disable your ipv6 across Linux server
How to setup http/https proxy with special characters in password
How to export the variable "http_proxy" or "https_proxy" when there are special characters in username or password in Linux?
7 tools to detect Memory Leaks with Examples
How to detect, capture and monitor memory leak in various applications such as C, C++ or in Linux process. use valgrind, core dump to capture leak information
10 practical examples to export NFS shares in Linux
This tutorial contains a list of nfs exports options in Linux with examples to create NFS share using /etc/exports. You can share with multiple hosts, single or …
Beginners guide to mount NFS share in Linux with examples
Step by step instructions to mount and unmount NFS share in Linux with examples. How to fix umount.nfs4:: device is busy
Easy steps to change default kernel version RHEL/CentOS 8
Step by step instructions to change default kernel from one version to another in RHEL/CentOS 8. You can change from newer to older or vice versa kernel version …
Best practices to update kernel-core in RHEL/CentOS 8
Steps and best practices to update kernel-core and kernel-modules in Red Hat or CentOS 8 using yum and dnf. List and verify default kernel version
How to add Windows Workstation to Samba AD DC (with screenshots)
Step by step tutorial to add Windows Workstation to Samba Active Directory Domain Controller and manage AD using Windows with RSAT
15 steps to setup Samba Active Directory DC CentOS 8
Step by Step tutorial to configure samba active directory domain controller in CentOS 8 Linux. Install Windows AD alternative in Linux. Free domain controller …
Steps to generate CSR for SAN certificate with OpenSSL
Step by step instruction to generate Certificate Signing Request (CSR) for Subject Alternative Name (SAN) certificates using openssl with examples in Linux
Simple Steps to Generate CSR using OpenSSL with Examples
Steps to generate csr (certificate signing request) using openssl in Linux with examples. Create private key with and without passphrase.
6 different commands to restart network in RHEL/CentOS 7/8
The command to restart network in RHEL or CentOS 6,7 and 8 would vary depending upon your network configuration. If you are using NetworkManager then you can …
10+ commands to list all systemctl services with status
In systemd all the services are part of unit files so to list services we must define --type= argument and to get the state of individual services we need …