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Network SecurityPrice Tag 1system security Linux network

The romanticized image of the digital nomad – a laptop on a sun-drenched balcony – rarely accounts for the actual friction of maintaining a professional development environment on the move. . The friction is amplified with Linux. We are looking for a setup that respects our kernel configurations, handles volatile network handovers, and maintains a strict security posture without the hand-holding of a consumer-grade OS – so, put simply, more than just a laptop and a sunny deck. The hardware is...
1 min read Network Security
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Server SecurityPrice Tag 1open-source Linux administration

Cron has existed in Unix and Linux environments for decades, handling backups, cleanup scripts, patching jobs, log rotation, monitoring tasks, and other maintenance work that administrators do not want to run manually. Most Linux servers rely on it constantly, which is exactly why attackers continue abusing it for persistence after a system has already been compromised. . Persistence through cron is not complicated. Attackers do not need a rootkit or advanced malware framework to maintain...
3 - 6 min read Server Security
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Vendors/ProductsPrice Tag 1security breach linux

A major internal repository breach at GitHub has exposed a critical and overlooked blind spot in Linux supply chain security. Kernel exploits, exposed SSH services, weak firewall rules, and vulnerable daemons dominated the Linux threat model for years, and in many environments, they still matter. But recent supply-chain incidents involving GitHub ecosystems, npm packages, and malicious developer tooling point somewhere else entirely: the developer workstation. . The breach matters because...
5 - 10 min read Vendors/Products
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Security Trends Price Tag 1access control multi-tenant

Linux administrators often face an ugly choice in the cloud: prioritize convenience and cost-efficiency by sharing infrastructure, or sacrifice those benefits for the sake of total isolation. Most modern Linux workloads don't live on their own private servers anymore. They live in shared environments like Kubernetes clusters, where multiple teams and services run side-by-side. It sounds efficient, and it usually is. . But cloud isolation isn't as ironclad as it looks on the diagram. If you...
4 - 8 min read Security Trends
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Vendors/ProductsPrice Tag 1incident response cloud security

Managed Extended Detection and Response (MXDR) has become one of the most sought-after security services in the enterprise market — and with good reason. It promises the holy grail: broad visibility across endpoints, network, cloud, email, and identity, combined with the 24/7 human expertise most organizations simply cannot build in-house. . However, the rapid growth of the market has produced a wide range of providers whose capabilities vary considerably beneath the surface. Choosing the...
4 - 7 min read Vendors/Products
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[{"id":483,"title":"Self-taught through trial and error","votes":545,"type":"x","order":1,"pct":78.42,"resources":[]},{"id":484,"title":"Formal training or courses","votes":30,"type":"x","order":2,"pct":4.32,"resources":[]},{"id":485,"title":"A job that required it","votes":34,"type":"x","order":3,"pct":4.89,"resources":[]},{"id":486,"title":"Other","votes":86,"type":"x","order":4,"pct":12.37,"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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Price Tag 1security advisoryupdatecryptography

OpenSSH: 7.1 Released With Logic Error Fixes And Compatibility Improvements

OpenSSH 7.1 has just been released. It will be available from the mirrors listed at https://www.openssh.org/ shortly.. From: Damien Miller Date: Fri, 21 Aug 2015 00:11:02 -0600 (MDT) To: This email address is being protected from spambots. You need JavaScript enabled to view it. Subject: Announce: OpenSSH 7.1 released OpenSSH 7.1 has just been released. It will be available from the mirrors listed at https://www.openssh.org/ shortly. OpenSSH is a 100% complete SSH protocol 2.0 implementation and includes sftp client and server support. OpenSSH also includes transitional support for the legacy SSH 1.3 and 1.5 protocols that may be enabled at compile-time. Once again, we would like to thank the OpenSSH community for their continued support of the project, especially those who contributed code or patches, reported bugs, tested snapshots or donated to the project. More information on donations may be found at: https://www.openssh.org/donations.html Future deprecation notice ========================= We plan on retiring more legacy cryptography in the next release including: Refusing all RSA keys smaller than 1024 bits (the current minimum is 768 bits) Several ciphers will be disabled by default: blowfish-cbc, cast128-cbc, all arcfour variants and the rijndael-cbc aliases for AES. MD5-based HMAC algorithms will be disabled by default. This list reflects our current intentions, but please check the final release notes for OpenSSH 7.1 when it is released. Changes since OpenSSH 7.0 ========================= This is a bugfix release. Security -------- sshd(8): OpenSSH 7.0 contained a logic error in PermitRootLogin prohibit-password/without-password that could, depending on compile-time configuration, permit password authentication to root while preventing other forms of authentication. This problem was reported by Mantas Mikulenas. Bugfixes -------- ssh(1), sshd(8): add compatability workarounds for FuTTY ssh(1), sshd(8): refine compatability workarounds forWinSCP Fix a number of memory faults (double-free, free of uninitialised memory, etc) in ssh(1) and ssh-keygen(1). Reported by Mateusz Kocielski. Checksums: ========== - SHA1 (openssh-7.1.tar.gz) = 06c1db39f33831fe004726e013b2cf84f1889042 - SHA256 (openssh-7.1.tar.gz) = H7U1se9EoBmhkKi2i7lqpMX9QHdDTsgpu7kd5VZUGSY= - SHA1 (openssh-7.1p1.tar.gz) = ed22af19f962262c493fcc6ed8c8826b2761d9b6 - SHA256 (openssh-7.1p1.tar.gz) = /AptLR0GPVxm3/2VJJPQzaJWytIE9oHeD4TvhbKthCg= Please note that the SHA256 signatures are base64 encoded and not hexadecimal (which is the default for most checksum tools). The PGP key used to sign the releases is available as RELEASE_KEY.asc from the mirror sites. Reporting Bugs: =============== - Please read https://www.openssh.org/report.html Security bugs should be reported directly to This email address is being protected from spambots. You need JavaScript enabled to view it. OpenSSH is brought to you by Markus Friedl, Niels Provos, Theo de Raadt, Kevin Steves, Damien Miller, Darren Tucker, Jason McIntyre, Tim Rice and Ben Lindstrom. . OpenSSH 7.1 resolves logical discrepancies and enhances interoperability, concurrently retiring obsolete cryptographic techniques.. OpenSSH 7.1, Secured Connections, Bug Fixes. . LinuxSecurity.com Team

Calendar 2 Aug 21, 2015 •User Avatar LinuxSecurity.com Team Cryptography
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[{"id":483,"title":"Self-taught through trial and error","votes":545,"type":"x","order":1,"pct":78.42,"resources":[]},{"id":484,"title":"Formal training or courses","votes":30,"type":"x","order":2,"pct":4.32,"resources":[]},{"id":485,"title":"A job that required it","votes":34,"type":"x","order":3,"pct":4.89,"resources":[]},{"id":486,"title":"Other","votes":86,"type":"x","order":4,"pct":12.37,"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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