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Stay Ahead With Linux Security HOWTOs

How To Remove Malicious Cron Esm H350
How to Secure My NetworkPrice Tag 1security advisory intrusion detection

A compromised Linux server can continue running malware long after the initial intrusion. One of the most common persistence techniques is a malicious cron job that silently downloads payloads, restarts malware, or re-establishes attacker access every few minutes. This guide shows how to identify suspicious cron entries, preserve forensic evidence, remove unauthorized scheduled tasks, and verify that no additional persistence mechanisms remain. . What Should You Save Before Removing Cron Jobs...
1 min read How to Secure My Network
7.Locks HexConnections Esm H350
How to Secure My NetworkPrice Tag 1access control Linux administration

Most SSH hardening advice ends at the same recommendation: Disable password authentication and use SSH keys. . That's good advice. It removes entire classes of attacks, including password spraying, credential stuffing, and brute-force attempts against exposed servers. The problem is what happens next. Many administrators treat SSH keys as the finish line when they are really the beginning of the hardening process. Attackers rarely care whether they obtained access with a password or a private...
6 - 12 min read How to Secure My Network
Detect Unauthorised Ssh Keys Hero Esm H350
How to Secure My NetworkPrice Tag 1security advisory remote access

Most of the time, nobody notices. SSH authentication succeeds, no alerts are generated, and the connection looks exactly the way it did the day the key was installed. That's part of the problem. . When security teams investigate unauthorized access on Linux systems, they often focus on passwords, exposed services, or vulnerable software. Trusted access receives less attention. Yet a single forgotten or unauthorized SSH key can provide the same access as a legitimate user while attracting very...
4 - 7 min read How to Secure My Network
IDS VS IPS Esm H350
How to Secure My NetworkPrice Tag 1intrusion detection application security

The wrong IPS rule can look like a security fix right up until it becomes an outage. . On Linux systems, detection and prevention are often discussed together, but they do not carry the same operational risk. One tells admins that something suspicious happened. The other can decide whether traffic is allowed to continue. That is why IDS vs IPS is not just a definition to memorize. It is a deployment decision about where to monitor, where to block, and how much confidence a team needs before...
4 - 8 min read How to Secure My Network
8.Locks HexConnections CodeGlobe Esm H350
How to Secure My NetworkPrice Tag 1unauthorized access security techniques

Exposed SSH servers are continuously hammered by brute-force attacks, password spraying, credential stuffing, and recycled passwords from infostealer dumps. Attackers rotate usernames, test weak credentials, and probe for anything that gives them initial access. The logs usually look messy long before the compromise happens. . The difficult part is separating harmless failures from actual intrusion activity. One failed login from an internal workstation rarely matters. Repeated failures...
5 - 9 min read How to Secure My Network
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13.Lock StylizedMotherboard Esm H240
Price Tag 1security best practicessystemdArch Linux

Disabling Bluetooth Service on Arch Linux for Better Power Efficiency

If your Arch Linux computer supports Bluetooth but you’re not using it, it’ll just be wasting power. Instead of turning it off whenever you boot your computer, disable the Bluetooth service instead. . Bluetooth is a convenient way to wirelessly connect all manner of devices to your computer. But if you’re not planning on using Bluetooth, leaving it activated means it’ll be sitting in the background consuming power needlessly. On a laptop that means your battery discharges faster than it needs to. Depending on how your Bluetooth is configured, it might be broadcasting its ID to other devices too, soliciting connections. This is poor for security and bad for your privacy. Turning Bluetooth on and off is a trivial matter through your desktop environment. Most desktop environments provide a simple checkbox or slider control to do this. But turning it back on is just as easy, and could be done inadvertently if you, or anyone else, isn’t paying attention. If you really want to be sure Bluetooth can’t be turned on, disabling it is the safest thing to do. With Bluetooth disabled, it cannot be restored through your desktop environment. Your computer will behave as though it had no Bluetooth hardware installed at all. The good news is, disabling your Bluetooth is easy when you know how, and it’s just as easy to restore it when you do want to use it. We’re using Arch as the demonstration system, but this will work with all modern systemd-based Linux distributions. The link for this article located at How-To Geek is no longer available. . Discover the steps to turn off Bluetooth on Arch Linux, enhancing energy efficiency and bolstering security while the feature is inactive.. Arch Linux, Bluetooth Management, Power Saving Tips. . Brittany Day

Calendar 2 Apr 04, 2023 •User Avatar Brittany Day How to Strengthen My Privacy
News Add Esm H240

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[{"id":483,"title":"Self-taught through trial and error","votes":549,"type":"x","order":1,"pct":78.54,"resources":[]},{"id":484,"title":"Formal training or courses","votes":30,"type":"x","order":2,"pct":4.29,"resources":[]},{"id":485,"title":"A job that required it","votes":34,"type":"x","order":3,"pct":4.86,"resources":[]},{"id":486,"title":"Other","votes":86,"type":"x","order":4,"pct":12.3,"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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