IT

IT news, tips, and tutorials for tech enthusiasts and professionals — from networking and security to the tools that keep everything running smoothly.

Allow SNMP ports in FirewallD CentOS

firewall-cmd –zone=public –add-port=161/udp –permanentfirewall-cmd –zone=public –add-port=161/tcp –permanentfirewall-cmd –zone=public –add-port=162/udp –permanentfirewall-cmd –zone=public –add-port=162/tcp –permanentfirewall-cmd –reload or add XML nano ADD file <?xml version=“1.0″ encoding=“utf-8″?><service>  <short>SNMP</short>  <description>SNMP protocol</description>  <port protocol=“udp“ port=“161″/>  <port protocol=“tcp“ port=“161″/></service> firewall-cmd –zone=public –add-service snmp –permanent firewall-cmd –reload

OpenProject CentOS 7 installation

as root Firewall settings sudo firewall-cmd –add-service=http –permanentsudo firewall-cmd –add-service=https –permanentsudo firewall-cmd –reload After steps above go to web page defined during configuration Default username admin and password admin

How to install PostgreSQL database server on CentOS 8

PostgreSQL is an free-opensource object-relational database management system. The objective of this tutorial is to perform an installation and basic configuration of PostgreSQL server on RHEL 8 / CentOS 8 Linux server. In this tutorial you will learn: How to install PostgreSQL…

Zabbix 4.4 / CentOS 8 installation issues

Before Zabbix install mysqld and configure firewall Install Zabbix Start mysqld systemctl start mysqldmysql -uroot -pzcat | mysql -uzabbix -p zabbix Enable port 10051 # systemctl start firewalld # firewall-cmd –add-service={http,https} –permanent success # firewall-cmd –add-port={10051/tcp,10050/tcp} –permanent success #…

VMware Networking Concepts Overview

Networking Concepts Overview Networking Best Practices VMkernel Networking Layer Choosing a network adapter for your virtual machine VMware Workstation 5.0Configuring a Virtual Network Virtual networking concepts Create a vSphere Standard Switch vSphere…

OctoPi multi web cam

plugin USB camera was identified , check lsusb before and after check what process is running your first camera and where it sends output start new process under Check that new process is created Check that web stream 1 is…

Windows Server Trial expiring, how to renew it?

I already posted short tutorial in a article where I left other useful resources for Windows Server 2012 R2 Evaluation – https://www.informaticar.net/?p=2422 but since I get this question asked a lot of times from my colleagues, I will make a separate article…

RJ45Z HP Storage works Cable

How to setup an msa1000 using the serial console For RHEL and SLES, HP supplies a utility for configuring and setting up the msa1500/msa1000, delivered as an RPM. While it may be possible to convert this RPM using alien and…