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Stay Ahead With Linux Security HOWTOs

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...
1 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
7.Locks HexConnections Esm H350
How to Secure My NetworkPrice Tag 1security advisory incident response

The first 30 minutes after discovering a compromised Linux server usually decide how much evidence remains available. One rushed reboot or cleanup attempt can wipe logs, terminate malicious processes, or remove network activity that investigators still need to review. Attackers also do not usually stay on one system for long once access is established. Early response is mostly about preserving visibility. Collect process information. Save network connections. Limit access carefully before...
6 - 11 min read How to Secure My Network
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166
Istock 1199544765 Esm H240
Price Tag 1access controlsecurity enhancementUbuntu

How To Configure Endlessh SSH Tarpit On Ubuntu 20.04 For Security

Learn how to add an SSH tarpit to Ubuntu Server 20.04 with the help of endlessh. . In your never-ending quest to secure your Linux servers, you've probably found a lot of times the breaches happen through SSH. No matter how secure it is, it can still be cracked. That's why you might need to consider setting up a tarpit for that service. Essentially, a tarpit will run on the standard SSH port and, when a hacker attempts to break through that port, they'll wind up stuck in an endless loop. That's how endlessh works. Install it and configure it for port 22 and the script kiddies will wind up in a tarpit, unable to escape. I'm going to show you how to do just that. . Fortify your Linux servers by configuring an SSH tarpit with endlessh, enhancing defense against unpermitted access.. SSH Tarpit, Endlessh Setup, Server Security, Linux Protection, Ubuntu Server. . Brittany Day

Calendar 2 Apr 16, 2021 •User Avatar Brittany Day How to Learn Tips and Tricks
News Add Esm H240

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