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email security Linux server
email security Linux server You've probably trained your team to look for red flags. Odd sender names, urgent language, mismatched links. But a well-crafted spoofed email won't trip any of those wires. It looks legitimate, sounds legitimate, and often comes from a domain that passes every automated check you throw at it. . Attackers know exactly how humans scan an inbox. They design around it. This guide walks you through the techniques attackers use to slip a spoofed email past both your filters and your users and what...
Jul 25, 2026
Security Vulnerabilities cisa kev vulnerability prioritization
cisa kev vulnerability prioritization Most Linux teams don't struggle to find vulnerabilities anymore. They struggle to decide which ones deserve attention first. Between daily scanner results, vendor advisories, and hundreds of new CVEs each month, the challenge isn't visibility—it's prioritization. . To solve this, organizations typically lean on the National Vulnerability Database (NVD) and CISA’s Known Exploited Vulnerabilities Catalog. But these aren’t competing lists. They answer two entirely different questions. While the...
Jul 22, 2026
Desktop Securitysecurity advisory vulnerability
security advisory vulnerability GNOME is officially shortening its standard vulnerability disclosure window from 90 days to 30 days, a change that impacts upstream maintainers, downstream Linux distributions, and system administrators in how they handle software vulnerabilities. The policy shift, announced by long-time security coordinator Michael Catanzaro , addresses modern software patching realities and a growing influx of automated submissions. . Because GNOME is the default desktop environment on several major Linux...
Jul 21, 2026
Security Vulnerabilities security advisory moderate
security advisory moderate For organizations that run a self-hosted Git platform, it’s no longer just about hosting static code repositories. Today, Git servers are responsible for deployment pipelines, API tokens, SSH keys, package repositories, and the automation scripts that push code directly. Confirm that the upgrade addresses known vulnerabilities but also provides production environments. . That makes them trusted systems within the development environment and attractive targets for attackers looking to move...
Jul 20, 2026
Server Securitydata privacy automation
data privacy automation Every system admin has lived through the same Monday morning ritual. A queue of forty tickets, half of them password resets, permission errors, or disk space warnings that any experienced technician could resolve in under two minutes. The other half require actual judgment. For years, automation promised that software would eventually sort the two apart on its own. That promise is now being tested in production Linux environments. . Early results are reshaping how IT teams think about tier-1...
Jul 17, 2026
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open sourceemail filteringspam controlSendmail Released Sender ID Milter for Efficient Email Filtering
Users of the open-source mail package should now be able to reduce their spam levels. Sendmail on Monday released the first implementation of a mail filter that uses Sender ID, an anti-spam technology currently being considered by the Internet Engineering Task Force (IETF). . . .. Sendmail on Monday released the first implementation of a mail filter that uses Sender ID, an anti-spam technology currently being considered by the Internet Engineering Task Force (IETF). Sender ID is a combination of the earlier Sender Policy Framework (SPF), invented by Meng Wong of pobox.com, and Microsoft's Caller ID proposal. The system aims to reducing the quantity of spam emails sent across the Internet by checking who they claim to be from. The plug-in mail filter, or "milter" in Sendmail jargon, works with the open source and commercial versions of Sendmail, but is still considered pre-release software at this stage. "Sendmail's Sender ID milter is a major weapon in the war on spam," said Meng Wong in a statement. "Now, system administrators everywhere can evaluate this promising new technology themselves and easily adapt it to their needs," Wong added. Sender ID uses records in the Domain Name System (DNS) to authenticate the sender of an email message. Most spam and messages sent by viruses use spoofed sender email addresses, making it more difficult to trace where they're sent from. With Sender ID, you can tell which messages come from forged addresses and reject them, often before the message body is sent. While this won't stop spam entirely, it will make life more difficult for mass-mailers, and as part of a series of measures may see our inboxes get less junk mail. The link for this article located at Jonathan Bennett, ZDNet UK is no longer available. . Sendmail on Monday released the first implementation of a mail filter that uses Sender ID, an anti-s. users, open-source, package, should, reduce, their, levels, sendmail. . LinuxSecurity.com Team
Sep 02, 2004
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