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Tag - ssh

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Uncomplicated Firewall (UFW) Recommended Configuration on Redhat or CentOS Linux

by Free Linux
3 min read
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Uncomplicated Firewall (UFW) -frontend for iptables and is a program for managing a netfilter firewall. Some key things to consider: 1. Installation: dnf install epel-release -y dnf install ufw -y 2. Verify if ufw is...

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  • Tutorials

Top 20 Recommended SSH Configuration on Redhat or CentOS Linux

by Free Linux
4 min read
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Secure Shell or SSH is a cryptographic network protocol used to securely log or access to remote systems. The most popular tool is the OpenSSH which provides a large suite of secure tunneling capabilities and different...

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  • Tutorials

Nftables Recommended Configuration on Ubuntu Linux

by Free Linux
4 min read
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Nftables is the replacement for iptables, ebtables and arptables. It is a subsystem of Linux kernel providing filtering and classification of network packets,datagrams or frames. Some key things to consider: 1.Installation: apt...

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  • Tutorials

Uncomplicated Firewall (UFW) Recommended Configuration on Ubuntu Linux

by Free Linux
3 min read
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Uncomplicated Firewall (UFW) -frontend for iptables and is a program for managing a netfilter firewall. Some key things to consider: 1. Installation: apt install ufw 2. Verify if ufw is enabled: systemctl is-enabled ufw 3...

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  • Tutorials

Top 20 Recommended SSH Configuration on Ubuntu Linux

by Free Linux
4 min read
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Secure Shell or SSH is a cryptographic network protocol used to securely log or access to remote systems. The most popular tool is the OpenSSH which provides a large suite of secure tunneling capabilities and different...

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  • Quick Tips & Tricks

SSH Remote Host Identification has changed

by Free Linux
2 min read
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SSH Remote Host Identification has changed Error and Fixes Normally you see this message by remotely accessing via ssh on target systems like Cisco, Juniper or Linux/Unix for possible reasons like: a.The target systems’...

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  • Tutorials

Securing your OpenSSH server in Linux

by Free Linux
9 min read
1 Comment

Secure Shell (SSH) is a program used to secure communication between two entities, often used as a replacement for Telnet and the Berkeley protocols such as remote shell (RSH) and remote login (Rlogin). SSH is also used as a...

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  • Quick Tips & Tricks

Backup Server files and MySQL database via FTP

by tux
3 min read
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I had the chance to work as a systems administrator in an e-commerce company and they have Linux dedicated servers leased/purchase from a hosting provider. Dedicated servers compared to a shared hosting is you have full control...

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  • Tutorials

Linux as a Router and Firewall

by tux
6 min read
3 Comments

Step by Step Procedure Step 1. Add 2 LAN cards to the Linux box. You need to have two(2) NICs, one for your private network and one for the public IP address Step 2. Check if your networks cards are properly detected and...

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  • Tutorials

Setup VNC Server in Fedora

by tux
9 min read
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Setup VNC Server in Fedora “Virtual Network Computing (VNC) is a desktop protocol to remotely control another computer. It transmits the keyboard presses and mouse clicks from one computer to another relaying the screen...

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