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
Second Network Card Not Being Detected You have dual onboard NIC and ifconfig displays only one interface (eno1) in Ubuntu. eno1 is embedded (onboard) Network Interface Card. Make sure Linux able “see” your networking hardware sudo lspci | grep Ether… Continue Reading
In this article you will learn how to check disk speed in Linux from terminal. We can check Linux disk (HDD or SSD) I/O performance with hdparm command. Hdparm is a command line utility for Linux to set and view… Continue Reading
Apache Tomcat on Ubuntu 16.04 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. Before You… Continue Reading
In this article i will show how to install tcpdump on Linux (Ubuntu, Redhat) and Capture DHCP requests using tcpdump utility in Linux. DHCP requests can be captured with tcpdump. So first we need install tcpdump utility in our Linux… Continue Reading
How to capture broadcast or multicast packets with tcpdump utility First install tcpdump software: For Ubuntu: # apt-get install tcpdump ForCentOS: # yum install tcpdump Then you can run tcpdump # tcpdump -n “broadcast and multicast” Example output: Discuss article… Continue Reading
Restarting an interface in Ubuntu Server How to restart a network in Ubuntu Server without reboot sudo ifdown eth0 && sudo ifup eth0
Increase File Upload Size in PHP-Nginx How to fix “[error] client intended to send too large body” in Ubuntu Edit php.ini: vi /etc/php5/fpm/php.ini Set: upload_max_filesize = 10M post_max_size = 12M Then change Nginx config file: vi /etc/nginx/nginx.conf … Continue Reading
Installing 3rd-party Open VM Tools Open VM Tools is the open source implementation of VMware Tools and consist of a suite of virtualization utilities that improves the functionality, administration, and management of virtual machines on VMware hypervisors. VMware recommends using… Continue Reading