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[{"id":483,"title":"Self-taught through trial and error","votes":545,"type":"x","order":1,"pct":78.42,"resources":[]},{"id":484,"title":"Formal training or courses","votes":30,"type":"x","order":2,"pct":4.32,"resources":[]},{"id":485,"title":"A job that required it","votes":34,"type":"x","order":3,"pct":4.89,"resources":[]},{"id":486,"title":"Other","votes":86,"type":"x","order":4,"pct":12.37,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350
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74

Improve OpenSSH Security and Prevent Brute Force Attacks

OpenSSH is a good stout application; it's battle-tested and reliable. You can lock it down even further with a few simple tweaks. Best of all, these cause little or no inconvenience after they are set up. The first thing you should do is create some access controls that allow only authorized users to login. . Use the ListenAddress directive when you have more than one network interface on your machine, such as border routers or firewalls, or multi-homed servers connected to several different subnets. Suppose your firewall has a WAN port and two LAN ports. You can have sshd listen only on the LAN ports, or on just one of them, and not listen on the WAN port at all. You can do the same thing with a multi-homed server- the easy way to control SSH access on selected subnets is with the ListenAddress directive. The link for this article located at EnterpriseNetworkingPlanet is no longer available. . Enhance your SSH access security with these configuration changes: change default port, disable root login, use key authentication, implement rate limiting, and more. OpenSSH, SSH Security, Brute Force Protection, Secure Login, Network Configurations. . Bill Locke

Calendar 2 Jun 05, 2007 User Avatar Bill Locke Network Security
79

Validate VPN Configurations with IP Security Validator Tool

IP Security Validator is an experimental tool that allows validation of Virtual Private Network (VPN) configurations between two network interfaces. As with testing connectivity using the Ping program, IP Security Validator enables verification and validation of VPN configurations and their connectivity.. . .. IP Security Validator is an experimental tool that allows validation of Virtual Private Network (VPN) configurations between two network interfaces. As with testing connectivity using the Ping program, IP Security Validator enables verification and validation of VPN configurations and their connectivity. This easy-to-use tool determines whether traffic between two hosts/IP interfaces is encapsulated (for example, IPSEC VPN) or not. IP Security Validator is a single application that can be used by both users and administrators. The link for this article located at IBM alphaWorks is no longer available. . IP Security Validator is an experimental tool that allows validation of Virtual Private Network (VPN. security, validator, experimental, allows, validation, virtual, private, network. . LinuxSecurity.com Team

Calendar 2 Feb 19, 2003 User Avatar LinuxSecurity.com Team Security Projects
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Community Poll

What got you started with Linux?

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/main-polls/150-what-got-you-started-with-linux?task=poll.vote&format=json
150
radio
0
[{"id":483,"title":"Self-taught through trial and error","votes":545,"type":"x","order":1,"pct":78.42,"resources":[]},{"id":484,"title":"Formal training or courses","votes":30,"type":"x","order":2,"pct":4.32,"resources":[]},{"id":485,"title":"A job that required it","votes":34,"type":"x","order":3,"pct":4.89,"resources":[]},{"id":486,"title":"Other","votes":86,"type":"x","order":4,"pct":12.37,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350
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