Error 22, Unretryable error. FreeNAS If your FreeNAS box give: “Error 22 Unretryable error” like: freenas (da3:mps0:0:1:0): READ(10). CDB: 28 00 e8 e0 88 af 00 00 01 00 freenas (da3:mps0:0:1:0): CAM status: SCSI Status Error freenas (da3:mps0:0:1:0): SCSI status:… Continue Reading
Restarting FFMPEG Using Monit How to monitoring and restarting ffmpeg using “Monit” utility. Monit is a free, open source process supervision tool for Unix and Linux. With Monit, system status can be viewed directly from the command line, or via… Continue Reading
CentOS Firewalld. How To CentOS firewalld provides a dynamically managed firewall with support for network/firewall zones to define the trust level of network connections or interfaces. It has support for IPv4, IPv6 firewall settings and for ethernet bridges and has… Continue Reading
Zimbra Fail2ban Setup How to install and configure Fail2ban for Zimbra mail server on CentOS. Fail2Ban is an intrusion prevention software framework that protects computer servers from brute-force attacks. Install Fail2ban on CentOS 7: Ensure your system is up… Continue Reading
Setup FQDN for Ubuntu 18.04 LTS The Fully Qualified Domain Name (FQDN) of the system is the name that the resolver returns for the host name. You can check the FQDN using commend: hostname –fqdn or hostname -f. The domain name… Continue Reading
Install Apache Tomcat on Ubuntu 18.04 LTS Apache Tomcat is an open-source software implementation of the Java Servlet and Java Server Pages technologies. With this guide, you’ll run applications within Tomcat using the OpenJDK implementation of the Java development environment.… Continue Reading
How to install Phoronix Test Suite on CentOS The Phoronix Test Suite is Open-Source Automated testing and benchmarking platform. The Phoronix Test Suite has access to more than 450 test profiles and over 100 test suites via OpenBenchmarking.org. First install… Continue Reading
PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target How to fix “PKIX path building failed” error. Make sure CA certificates have been imported into the correct truststore (cacerts file). If trusted CA certificate is… Continue Reading
How To Setup SSH Public Key Authentication On Linux Why using SSH Public Key Authentication On Linux? Public Key Authentication is much more secure than SSH password authentication. In case if your server allows password authentication, remote attackers will try… Continue Reading
How To Power Up ATX Power Supply Without Motherboard If you need power up ATX Power Supply without motherboard or other peripherals. On 20 or 24 pin ATX plug find Green and Black wires: And then connect GREEN and… Continue Reading