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Red Hat is out this week with the latest milestone update of its flagship Linux platform. Red Hat Enterprise Linux 9.5 Red Hat Enterprise Linux 9.x Red Hat Enterprise Linux 9.x Firewalld is a commonly used Linuxfirewall service while notables provides filtering and classification of network packets.
The three critical warnings are part of a big release of 32 security alerts , many of which are IOS XE-related, including firewall, SD-WAN and wireless access vulnerabilities. Linux security: Cmd provides visibility, control over user activity.
NFVIS is Linux-based infrastructure software designed to help enterprises and service providers to deploy virtualized network functions, such as a virtual router, firewall and WAN acceleration, Cisco stated. To read this article in full, please click here
Register >> Network firewalls have long been established as the ubiquitous first line of defense for every organization’s network security strategy. Sprawling deployments of firewalls and other security devices that increase complexity, cost and risk. Why Running Multiple WordPress Firewalls is a Bad Idea (wpwhitesecurity.com).
September 12th marks one year since Jupiter Broadcasting was announced to be joining forces with Linux Academy in a team effort to give back to the community. Jupiter Broadcasting has been creating your favorite podcasts on Linux, open source, and free software since the term “podcast” existed. Fast forward to now.
Having Linux as your operating system is one of the better decisions you can make concerning your computer’s security. However, many Linux users make the same mistakes of believing that it’s enough just to have it on your computer and only that fact will make all threats simply disappear, when unfortunately the reality is quite different.
Hi, I’m Anna, COO of Linux Academy. Anthony is out on some much-needed vacation, but that’s not going to stop us from updating you on everything new in this Linux Academy Monthly Update. CompTIA Linux Plus XK0-004. Securing a Virtual Network with Azure Firewall . Using Ansible Firewalls Rules. Platform Updates.
Recently, when building content for one of my upcoming courses, Microsoft Azure Architect Technologies – Exam AZ-300 , I found the Microsoft documentation wasn’t immediately clear on the exclusivity of Storage Account Firewalls, and Service Endpoints. Do I need to use Service Endpoints and the Storage Firewall together?
Verplanke believes that DPDK (Data Plane Development Kit) and virtualization are key to virtualizing workloads that move around lots and lots of packets, such as firewalls, routers, and other similar functions. In recent years, we’ve seen more devices running off-the-shelf software (like Linux).
I’ve written before about adding an extra layer of network security to your Macintosh by leveraging the BSD-level ipfw firewall, in addition to the standard GUI firewall and additional third-party firewalls (like Little Snitch ). The robust pf firewall should now be running on your OS X Mountain Lion system.
Just by having a paid account with Linux Academy, you and your organization can access not only our Google environments but all of Linux Academy’s Cloud Playground environments without ever having to open up a port or worrying about leaking information. Secure Google Sandbox Environments for Learning. Why can it take that long?
This post by Ranga Maddipudi shows you how to use App Firewall in conjunction with VXLAN logical networks. Via Forbes Guthrie on Twitter, I saw this post on how to setup a CA on Linux and use it in a Windows environment. App Firewall? Venky explains it in this post. Jason Edelman is on a roll with a couple of great blog posts.
Ansible can help automate the backup, and you can learn more in this month’s how-to video that covers using Ansible to back up a Cisco ASA firewall. Red Hat offers OpenSCAP , can be used to scan Linux hosts for compliance but doesn’t scan Windows hosts.
Run firewall-cmd commands on both nodes, and allow traffic for Pacemaker (TCP ports 2224, 3121, 21064, and UDP port 5405): sudo firewall-cmd --permanent --add-service=high-availability. sudo firewall-cmd --reload. Install the Apache HTTP server on both nodes, and open the HTTP ports in the firewall: sudo yum install -y httpd.
This November at Linux Academy, we have loads of new content coming your way! To all of our learners who may know someone who wants to learn more about the cloud or Linux, but they have been on the fence about signing up for a free community edition account, then tell them that right now is a great time for them to sign up!
In that post, I focused on the use of Linux on both the server side (on an EC2 instance in your AWS VPC) as well as on the client side (using the GNOME Network Manager interface). If the peer is Linux-based, you can use the information in my earlier blog post ; if the peer is macOS, then use the instructions in this post.
There are, of course, many more announcements from the keynote and Linux Academy will continue to blog throughout the week, but those were a few of the exciting announcements that caught my eye from the keynote. Andy also announced Amazon S3 Access Points , a new service that helps firewall your S3 buckets within private networks.
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.
It was good to read this post on Cumulus Linux first impressions by Jeremy Stretch. I’m a fan of Cumulus, but I’m admittedly a Linux guy (see here ) so you might say I’m a bit biased. Jeremy is a “hard-core” networking professional, and so hearing his feedback on Cumulus Linux was, in my opinion, useful.
We spend so much time on other things — like managing firewall rules, system patching , analyzing report data, etc. Great news – as I’m writing this, I’m also working on a CompTIA CySA+ certification course here at Linux Academy to be released soon!). that user accounts are often a neglected topic. It’s fairly simple.
From new courses to new labs, we have a ton of exciting new Google Cloud updates at Linux Academy ( where you can get the most Google Cloud training on this planet! ). Practice what you’re learning by spinning up live environments within Linux Academy! Creating Firewall Rules on a Google Cloud VPC Network.
The problem is that threat actors are able to get through the castle gates (firewalls) and once in, are able to evade the castle guards (IPS). Cisco EPGs can be a physical server, a virtual machine, a Linux container, or even a mainframe. Microsegmentation will fix this. It uses a new construct they call End Point Groups (EPG).
Welcome to Linux Academy’s Cloud Playground! Used basic Linux commands on that server. The great thing about this in-browser terminal is that it bypasses restrictions that corporate firewalls typically have, so you can learn on the job without restriction. By the end of this guide, you will have: Started an Ubuntu server.
For internal vulnerability scanning, you can set up an OpenVAS server running on Linux. There is no licensing cost for Linux or OpenVAS, which is a bonus. If you’re interested in learning more about vulnerability scanning, it’s covered in Linux Academy’s CompTIA Pentest+ course here.
Ranga Maddipudi ( @vCloudNetSec on Twitter) has put together two blog posts on vCloud Networking and Security’s App Firewall ( part 1 and part 2 ). Linux distributions that offer ARM support, though—like Ubuntu, RHEL, and SuSE—are supported, however.
These controls could be firewalls, Security Information and Event Monitoring (SIEM) systems, Intrusion Prevention Systems (IPSs), Network Access Control (NAC) systems, etc. This is because you have to audit technical controls and be able to understand things like firewall rules, Active Directory structure, file permissions, backups, etc.
With engaging features like live AWS cloud sandboxes and servers, Interactive Diagrams, Hands-On Labs in live cloud environments, customizable flashcards, study groups, direct access to our expert Training Architects, downloadable Course videos, and more, Linux Academy is the #1 cloud training platform that helps you learn AWS by doing.
The Linux Audit system is a great solution. Your security team can use the Linux Unified Key Setup (LUKS) to encrypt and decrypt physical disks to keep data secure when not in use. OpenSCAP shows that a firewall is installed and running, that the Telnet protocol is disabled, and so on. Stay Compliant with 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. The post May Intro | Roadmap to Securing Your Infrastructure appeared first on Linux Academy. They are priceless!
These policies, like any firewall, provide an invaluable means of limiting attack vectors both inside and outside the VPC. It is important to remember that just because an endpoint is behind a firewall doesn’t mean it is not a vulnerability. These suggestions and others are covered in Linux Academy’s Kubernetes Security Course.
Gabriella Gonzalez shares some tricks for jailbreaking hosts behind “secure” enterprise firewalls. Operating Systems/Applications I started using eza on my desktop systems (both macOS and Linux) a while ago, but it’s nice to see it getting more attention. Oh man, this was something I didn’t need to know.
Plumgrid is one of the primary commercial sponsors behind the IO Visor project , a Linux Foundation project, which leverages the extended Berkeley Packet Filter (eBPF) subsystem in the Linux kernel. Project Calico. Next, I stopped by the Calico booth. I also popped over to talk to Midokura about MidoNet.
Vivek Gite over at nixCraft explains how to use ufw (Uncomplicated Firewall) on Ubuntu to limit SSH connections. Flatpak is a (relatively) new application packaging/sandboxing mechanism for Linux applications. Who would have thought that one day you’d refer to a Microsoft web site for instructions on configuring something in Linux?
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. IPS : Try to run a deep port scan against your IPS from the outside, and see what happens.
We all know that security is more than just a host-based firewall, but a host-based firewall can be part of an overall security strategy. This article provides a good introductory overview of Linux iptables commands for configuring host-based firewall rules on your Linux systems. Cloud Computing/Cloud Management.
My first post on WireGuard showed how to configure WireGuard on Linux, both on the client side as well as on the server side. As described here , my primary use case is enabling connectivity to EC2 instances with private IP addresses inside a VPC, so the peer system for me is a Linux instance with WireGuard installed and configured.
” Approving AWS (and Azure, Google Cloud, or Linux) environments for your employees can pose a few problems: Administrative overhead of managing individual environments. Linux Academy manages all of the overhead associated with provisioning, securing, and tearing down the accounts. ” Why? Playground Instant Terminal.
All In One WP Security & Firewall. Firewall functionality: basic, intermediate and advanced protection. Vobla is a cloud backup service for Linux machines. This means that you’re vulnerable to bruteforce attempts. If even you don’t know what password you have, does a hacker even stand a chance? SPAM protection.
This article by Joshua Fox outlines how and when to use each of the various types of firewalls offered by AWS. Ryan Blunden has authored a fairly comprehensive piece on environment variables in Linux and macOS. Linux may be coming to the Apple M1 chip. Who else knew that HAProxy could route SSH connections ?
This post by Ranga Maddipudi shows you how to use App Firewall in conjunction with VXLAN logical networks. Via Forbes Guthrie on Twitter, I saw this post on how to setup a CA on Linux and use it in a Windows environment. App Firewall? Venky explains it in this post. Jason Edelman is on a roll with a couple of great blog posts.
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. The post May Intro | Roadmap to Securing Your Infrastructure appeared first on Linux Academy. They are priceless!
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. The post May Intro | Roadmap to Securing Your Infrastructure appeared first on Linux Academy Blog. They are priceless!
I highly recommend you read the entire post, but in short the five skills Matt recommends are software skills (which includes configuration management and software development tools like Git ), Linux, deep protocol knowledge, hypervisor and container networking, and IPv6. NixOS seems to be an interesting re-think of a Linux distribution.
At DevOps Networking Forum 2016, I had the opportunity to share a presentation on some Linux networking options. Russell Pope at Kovarus recently wrote about using security groups to manage the VMware NSX distributed firewall. I knew Microsoft was cozying up to Linux, but I honestly didn’t expect they would port SQL Server to Linux.
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