Category: Blog

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How To Prevent Deleting Files Accidentally?

Every system admin horror is deleting files accidentally especially important and not backup ed configuration files. Here is how can we recover deleted files from Linux systems which is next situation if we skipped this step. Ask Before Deleting Files rm is defacto tool to remove files from Linux system. We...

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How To Recover or Reset Lost MySQL Password On Linux?

I have some php applications that runs with MySQL database server. I have  setup MySQL database long time ago and I have forgotten root password of MySQL server. How can I recover and reset MySQL Server password? One way to reset MySQL password is stopping MySQL daemon. Starting it with recovery mode...

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How To Install Gns3 To Fedora?

Gns3 very useful tool to simulate real networks and systems. In the first days of its Gns3 was simple Cisco IOS image emulator. But recent years its development has gained momentum. This made Gns3 a multi platform, flexible real world simulator. Gns3 supports systems like Cisco, Juniper, Palo Alto, Pfsense,...

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locate Command Tutorial With Examples For Linux To Find Files

Linux have different tools to search and find files and directories. locate is one of them which is very popular. The alternative for locate is find command. But they work differently from each other. Find command searches in real time but locate command uses a database which holds all files and directories...

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How To Exclude Hosts From Nmap Scan?

Nmap is very useful tool for network administration and security. It is most used tool in these areas. But a lot of people use it with very basic means. Here we will look more sophisticated usage of nmap step by step in this ant further posts. Target Hosts Create a...

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How Configure Cisco For Logging?

Hi, collecting logs are important. In my daily job I am working with logs about a lot of systems like WMware , Application ,Linux,windows,Cisco ,checkpoint, pfSense. Logs provides info about the system, application etc. Security incident management systems heavily rely on logs. Example Log Logs consist of date system name and...

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Linux Systemctl Service Management Tutorial

Hi, today we will learn managing Linux services with systemd or systemctl. While Linux kernel booting, it loads drivers, mount file systems, starting memory management, creating system calls etc. But after that what? Linux starts an init process to create further system and user services and processes. To manage system...

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