How to activate Firewall on Linux System

To enable Firewall in Linux is simple

sudo ufw enable

To check Firewall status :

sudo ufw status verbose

To check Firewall version :

sudo ufw --version

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how to install zekr on ubuntu Linux

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Server Security Tips to Secure Your Server

Server Security Tips Here are 79 server security tips to help improve your web server security. I start with passwords. You would be surprised at the number of cases we handle that boil down to bad passwords. Web application security can also be improved with some simple steps, and it is time everyone stop using insecure communication protocols. Password Security · Use passwords with at least 8 characters. · Use complex passwords that include numbers, symbols, and punctuation. · Use a variety of passwords for different accounts or roles. · Test passwords in a secure password tool. · Do not use dictionary words as passwords, e.g. myblackdog · Do not repeat sequences of characters, e.g. 3333, abcdabcd. · Do not use personal information in passwords, e.g. your birthdate. · Do not store passwords on laptops, smartphones or tablets that can be lost. · Use a password manager to securely keep track of your passwords (See our post on LastPass). ·

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