CentOS
How To Install and Configure Zabbix Agent on Linux – Red Hat Enterprise Linux / CentOS and Debian / Ubuntu Zabbix server requires to install Zabbix Agent on remote Windows and Linux systems. For collecting information and and provide to Zabbix. Install and Configure Zabbix Agent on Linux very easy and takes about
CentOS
In this article I will show how to find how To find user who send a bulk Emails in Zimbra. If Zimbra server sends spam emails first you need find user or users who authenticated on the SMTP port and sending spam. The following command will return list of authenticated
Linux
Nmap (“Network Mapper”) is a free and open source (license) utility for network discovery and security auditing. Many systems and network administrators also find it useful for tasks such as network inventory, managing service upgrade schedules, and monitoring host or service uptime. Here is nmap most useful commands cheat sheet.
CentOS
How To Monitor Disk Load in Linux iostat utility will help measure and monitor hard drive load: # iostat -dx /dev/sda 5 As result you can see output: How to Securely Wipe Hard Drive in Linux
CentOS
How To Create a Sudo User CentOS Login into your server as root. If you already have user you can use usermod command ro add the user to the wheel group: # usermod -aG wheel username For testing sudo for that user switch to that user account: # su username And then
CentOS
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 ATA hard disk drive hardware parameters and test performance.
Linux
How to fix OpenVAS error: Login failed. OMP service is down Just run two commands from Linux terminal: # openvasmd stop # openvasmd start If you like what you are reading, please: Buy me a coffee
Linux
Your server appearing pretty slow could be many things from wrong configs, scripts and dodgy hardware – but sometimes it could be because someone is flooding your server with traffic known as DoS ( Denial of Service ) or DDoS ( Distributed Denial of Service ). Denial-of-service attack (DoS attack) or Distributed Denial-of-service attack (DDoS
Linux
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 Begin * Make sure following commands to make sure
CentOS
How To Install Htop on CentOS 7 In this article I will show how to Install htop on CentOS 7 Linux from EPEL repository. Htop is a one of the best an alternative tool for Linux top command. By default CentOS7 comes without htop utility. It can be found in
FFmpeg
Use Youtube-dl With FFmpeg How to Using youtube-dl with ffmpeg or How to grab YouTube video and re stream as live RTMP stream with FFMPEG First you need install youtube-dl and ffmpeg last version (because last ffmpeg builds supports https protocol) Here is examples how to use youtube-dl with ffmpeg
Linux
You can use pip: sudo apt-get install python3-pip sudo pip3 install --upgrade youtube_dl