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Outbound Traffic Filtering | Roadmap to Securing Your Infrastructure

Linux Academy

This is filtering provided at the network edge by a firewall with rules (ACLs) restricting what internal users are allowed to access. Some firewalls have the ability to filter by an application (layer 7 firewalls), but we’re going to concentrate on standard packet-filtering firewalls and their capabilities.

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May Intro | Roadmap to Securing Your Infrastructure

Linux Academy

As many of you know, most firewalls today come with a default rule set permitting all outbound traffic to flow freely. You put the firewall in place, and traffic flows outbound unimpeded. When command and control (CNC) malware is installed it needs to phone home. They are priceless! The necessity of outbound traffic filtering.

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Self-Audits | Roadmap to Securing Your Infrastructure

Linux Academy

EICAR is an industry standard test file used to test malware, anti-virus, content filters, etc. Firewall rules : Attempt to access something your firewall should be blocking. The post Self-Audits | Roadmap to Securing Your Infrastructure appeared first on Linux Academy Blog.

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May Intro | Roadmap to Securing Your Infrastructure

Linux Academy

As many of you know, most firewalls today come with a default rule set permitting all outbound traffic to flow freely. You put the firewall in place, and traffic flows outbound unimpeded. When command and control (CNC) malware is installed it needs to phone home. They are priceless! The necessity of outbound traffic filtering.

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May Intro | Roadmap to Securing Your Infrastructure

Linux Academy

As many of you know, most firewalls today come with a default rule set permitting all outbound traffic to flow freely. You put the firewall in place, and traffic flows outbound unimpeded. When command and control (CNC) malware is installed it needs to phone home. They are priceless! The necessity of outbound traffic filtering.

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Technology Short Take 139

Scott Lowe

In this post , Jakub Sitnicki digs way deep into the Linux kernel to uncover the answer to the question, “Why are there no entries in the conntrack table for SYN packets dropped by the firewall?” Linux malware is getting more sophisticated. ” Get ready to get nerdy! Servers/Hardware. Aye aye, Popeye!

Vmware 60
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Technology Short Take 132

Scott Lowe

” Ivan Pepelnjak attempts to answer the question, “How much do I need to know about Linux networking?” ” Speaking of Linux networking…Marek Majkowski of Cloudflare digs deep into conntrack , used for stateful firewalling functionality. Servers/Hardware.