firewall-cmd

How to Install Oracle Database 11.2.0.4 on Oracle Linux 7.2

by Ed Chen
November 6, 2016January 17, 2021

First of all, I take a short cut to prepare almost all required packages by installing oracle-rdbms-server-11gR2-preinstall. [root@db1 ~]# yum -y install oracle-rdbms-server-11gR2-preinstall Loaded plugins:… Read More »

How to Limit Network Access By Firewalld on Enterprise Linux 7

by Ed Chen
March 19, 2016September 10, 2020

You may have noticed that the service ssh is also added in the public zone (/etc/firewalld/zones/public.xml) by default. This is necessary for initialization. But after… Read More »

The Fastest Way to Install Java and Tomcat on Enterprise Linux 7

by Ed Chen
August 23, 2014March 27, 2018

If you'd like to install Java 8 and Tomcat 8 on Enterprise Linux (EL) 7, please refer to another post below:How to Install Java 8… Read More »

How to Make Tomcat Respond to Port 80

by Ed Chen
August 21, 2014May 16, 2019

Tomcat uses port 8080 to service public users, but most users won't append :8080 to your URLs to get the content, which will result no content… Read More »

How to Install Java 8 and Tomcat 8 on Enterprise Linux 7

by Ed Chen
August 20, 2014March 27, 2018

In this post, I will install the newest Java 8 and Tomcat 8 on Enterprise Linux (EL) 7 Minimal. There're 4 major steps in this… Read More »

How to Open Ports and Survives from Reboots

by Ed Chen
August 19, 2014May 17, 2019

Open Port There're differences to open port between Enterprise Linux (EL) 6 and 7, although they are IPTABLES operating underneath. EL6 uses iptables to manage… Read More »