Network Security
system security Linux network
system 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...
May 26, 2026
Server Securityopen-source Linux administration
open-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...
May 25, 2026
Vendors/Productssecurity breach linux
security 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...
May 21, 2026
Security Trends access control multi-tenant
access 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...
May 21, 2026
Vendors/Productsincident response cloud security
incident 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...
May 19, 2026
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intrusion detectionsecure communicationquantum cryptographyExploring Quantum Cryptography for Enhanced Secure Communication
Quantum cryptography goes a step further than electronic cryptography through its employment of a stream of photons, the quantum properties of which determine the key. The fun part is that if an intruder observes or intercepts the transmission, those properties get . . . . Quantum cryptography goes a step further than electronic cryptography through its employment of a stream of photons, the quantum properties of which determine the key. The fun part is that if an intruder observes or intercepts the transmission, those properties get changed -- an unavoidable principle of quantum mechanics -- meaning the sender and receiver can tell if anyone is eavesdropping. The link for this article located at LightReading is no longer available. . Quantum cryptography goes a step further than electronic cryptography through its employment of a st. cryptography, quantum, further, electronic, through, employment. . LinuxSecurity.com Team
Nov 05, 2003
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Cryptography
74
wireless securitysecurity methodologyIEEE standardIEEE 802.11i: New Wireless Security Standards and RSN Methodology
After two years of rousing debate, the body responsible for the Wi-Fi standard is finally putting the finishing touches on its new security standard, IEEE 802.11i. Although this standard's Robust Security Network feature will deliver the level of security the wireless . . . . After two years of rousing debate, the body responsible for the Wi-Fi standard is finally putting the finishing touches on its new security standard, IEEE 802.11i. Although this standard's Robust Security Network feature will deliver the level of security the wireless world is clamoring for, don't be fooled: Your wireless network won't be secure until your transition to RSN is complete. RSN defines two security methodologies--one for legacy hardware based on RC4 and one for new hardware based on AES. The standard also provides the flexibility to add new methodologies if the need arises. RSN uses the IEEE 802.1x port-authentication standard to authenticate wireless devices to the network and to provide the dynamic keys it requires. The task group does not specify any authentication method over 802.1x; it just defines the features such a method must provide. The idea here is to "future-proof" the RSN authentication process. The link for this article located at NWC is no longer available. . Investigate the recent advancements in WLAN security pertaining to the IEEE 802.11i standards and the practical application of its Robust Security Network (RSN) framework.. Wireless Security, IEEE Standards, WLAN Security, RSN Implementation, AES Methodology. . Anthony Pell
Mar 06, 2003
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Network Security
74
application securityinternet threatsrisk assessmentEvaluating Internet-Connected Custom Web Applications' Risks
This article is the fourth in a series that is designed to help readers to assess the risk that their Internet-connected systems are exposed to. In the first installment, we established the reasons for doing a technical risk assessment. In the . . . . This article is the fourth in a series that is designed to help readers to assess the risk that their Internet-connected systems are exposed to. In the first installment, we established the reasons for doing a technical risk assessment. In the second article, we started to discuss the methodology that we follow in performing this kind of assessment. The third part discussed methodology in more detail, focussing on visibility and vulnerability scanning. This installment will discuss a relatively unexplored aspect of Internet security, custom Web applications. Of all the possible services on the Internet DNS, e-mail and the World Wide Web are by far the most pervasive. (In fact, in July 2002, the monthly Netcraft Web site survey reported that 37,235,470 active Web servers were connected to the Internet.) Of these, Web services are the most complex and the most frequently abused. Originally a simple text-based information service, the Web has developed into a highly functional interactive application development platform that is being used for almost every possible application on both the Internet and Intranet. Major vendors have recognized the power of the Web and have made significant investments in Web development platforms. These include Sun (Java), Microsoft (Active Server Pages, Site Server and Commerce Server), the open source community (PHP) and others (ColdFusion). Such platforms make it very easy for standard administrators to develop complex applications. A simple wave of the Web development wand and suddenly everybody's a programmer, even me! Web applications are often developed by under-qualified, inexperienced developers. Unknowingly many programmers make errors that provide potential intruders with precisely the vector they need to penetrate theprivate network. As these applications are built on standard platforms, they tend to look similar, and tend to have similar security weaknesses. The link for this article located at SecurityFocus is no longer available. . To assess internet-connected custom web application risks, focus on key assets, perform threat modeling, and consider common attack vectors like SQL injection and DDoS. Internet Security, Custom Web Applications, Risk Mitigation. . Anthony Pell
Oct 04, 2002
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Network Security
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