Audit Linux privileges now to limit compromise, escalation, and system-wide damage. Review Linux Privileges×
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
Privacydata collection automation
data collection automation You're running a web scraping project to collect pricing data from e-commerce sites. You set up a pool of datacenter proxies, launch your scripts, and within minutes — banned . CAPTCHAs everywhere. Your data pipeline stops before it really begins. . It's a frustrating scenario that plays out daily in ad verification, market research, and multi-account management. The website doesn't know you're doing legitimate research or monitoring. It just sees traffic coming from IP ranges it recognizes as...
Jul 17, 2026
Refine news
X Clear Filters
Get the latest News and Insights
Get the latest Linux and open source security news straight to your inbox.
Community Poll
Should Linux servers automatically install security updates?
Trending News
Loading...
Explore Latest Linux Security news
We found 12 articles for you...
74
network securityopen-sourceconfigurationConfiguring Proxy Servers on Linux for Enhanced Security and Privacy
A proxy server is basically a middle step between your system and the internet. Instead of your machine reaching out directly, everything runs through the proxy first. That swap hides your IP and lets you control what comes in and what goes out. . So, how do you actually use a proxy server on Linux ? You can set it system-wide, drop it into tools like apt , wget , or curl , or just configure it per app. Once it’s in place, every request takes the proxy route — adding a layer of privacy and filtering traffic before it ever reaches you. Why Proxy Servers Matter for Linux Every connection leaves a trace. Businesses log activity, attackers scan for openings, and even normal browsing creates data you may not want exposed. On Linux, proxies help lock down that surface. They’re used to: Keep servers from being reached directly Spread traffic loads more evenly Mask user IPs for privacy Support scraping, testing, and automation at scale They don’t replace firewalls or intrusion detection, but they add another line of defense. For a closer look at how to use proxy servers for better online security , see this detailed guide. Setting Up a Proxy on Linux Pick a provider Free proxies are risky. Go with a service that’s stable and offers multiple proxy server IPs. System-wide config Add variables to /etc/environment: export http_proxy="http://username:password@proxy-server:port/" export https_proxy="http://username:password@proxy-server:port/" Reload the environment so apps respect the new settings. Package managers Debian/Ubuntu (apt) : edit /etc/apt/apt.conf: Acquire::http::Proxy "http://proxy-server:port/"; Acquire::https::Proxy "http://proxy-server:port/"; Red Hat/Fedora : add proxy details to dnf.conf or yum.conf Verify Run: curl -I https://ifconfig.me If it shows the proxy’s IP, you’re set. Per-app Firefox, wget, and curl can each be configured separately if you don’t want system-widerules. Types of Proxy Servers Residential – ISP IPs, harder to detect, used for scraping or ad checks Datacenter – fast, scalable, better for bulk requests Transparent – don’t hide identity, used for filtering Anonymous – hides IP but still flagged as a proxy Elite – masks both IP and proxy use, highest anonymity Common Mistakes Trusting free proxies that leak data Leaving open ports exposed Assuming one proxy setup will scale forever Ignoring monitoring — a broken proxy can kill performance Final Thoughts Knowing how to use a proxy server on Linux gives you more privacy and tighter control over traffic. It can reduce risk from phishing, balance heavy loads, and support research or automation without exposing your systems. It’s not a silver bullet — pair it with firewalls, encryption, and monitoring. But as part of a layered security setup, a proxy server is a simple, effective piece of the puzzle. . Learn the best practices for configuring and utilizing proxy services on Linux to boost your anonymity and manage network traffic effectively.. Proxy Server Configuration, Traffic Management Linux, Network Security Practices. . MaK Ulac
Sep 22, 2025
•
Network Security
74
network securitysecurity tooltraffic managementHTTP Proxy Servers: Enhance Linux Security and User Privacy Online
In this modern digital era, ensuring privacy and security while surfing the Internet is more critical than ever. Individuals and organizations use proxy servers to enhance their defenses against increasing cyber threats. HTTP proxies are one of the many types that play an essential role in managing traffic, improving security, and enhancing user experience. . In this article, I'll explore the role and functionality of HTTP proxy servers for Linux network security . Let's begin by examining what a proxy server is and the benefits it offers us privacy-conscious Linux admins. What Is a Proxy Server? A proxy server is an intermediary for your device to access the Internet. This process allows you to hide your IP address, bypass restrictions, and protect your online privacy . A shared proxy server is helpful for many purposes. It can access geographically restricted content or improve network performance. Linux proxy servers are a flexible and robust solution to achieve these goals, which makes them popular with tech-savvy users. Proxy servers offer several notable benefits, including: Enhancing Security Individuals and companies use proxy servers to improve data and network safety. By acting as a mediator between your device and the Internet, a proxy server can protect sensitive data from unauthorized access, block malicious websites, filter out harmful content, and prevent unauthorized access to the network. Accessing Geo-restricted Content A proxy server can also be used to access restricted content geographically. Imagine, for example, that a particular website or service online is only available within a specific country. You can then use a proxy for that country to bypass restrictions and access content like you were there. Improving Network Performance Proxy servers improve network performance by caching frequently accessed files and web pages. The proxy server delivers the content from its cache to multiple users in the same network instead of downloading it eachtime. This improves network efficiency, reduces bandwidth consumption, and speeds up page loading. Anonymizing Web Browsing Proxy servers can also hide your IP address to keep your browsing private. When you connect to a site through a proxy, the website can only see the proxy's IP address, not your own. This adds a layer of privacy, making it harder for websites to track you online. Privacy is often the quiet driver behind the use of HTTP proxies. For anyone curious about how to hide IP address information, the answer usually begins here. A proxy steps in as a kind of stand-in, filtering requests and returning responses without ever exposing the user’s true location. The idea isn’t new—VPNs, Tor, and other tools offer similar protection—but proxies remain one of the simplest and most widely used methods. They not only keep activity harder to trace, but they also fit neatly into the larger story of how everyday browsing habits intersect with questions of security and anonymity. Understanding HTTP Proxies HTTP proxy servers act as intermediaries, managing requests and replies between clients and servers. The HTTP proxy server forwards the user's request to the web server. This process has many advantages, especially in terms of security and performance. Content caching is an essential feature of HTTP proxy servers. By caching frequently visited web pages, HTTP proxies can reduce loading times and bandwidth consumption. This enhances the user experience and reduces the pressure on your internet connection. HTTP Proxy Server Security Features HTTP proxies are essential for protecting networks against various threats. Implementing filter rules to block malicious websites is a significant advantage. HTTP proxies keep updated lists of known threats to prevent users from visiting malicious sites. HTTP proxies also include access control lists (ACLs) . Administrators can set up specific rules that dictate which users or groups can access certain content. This level ofcontrol can be crucial for organizations that want to enforce security policies, safeguard sensitive data, and minimize exposure to harmful online content. Privacy Protection with HTTP Proxies Many users also prioritize privacy online, and HTTP proxies are a great way to protect your identity and privacy when browsing the Internet. These proxies mask IP addresses to protect users from third-party tracking and profiling. Administrators can also remove tracking headers in outgoing requests. This strengthens privacy by removing information that can be used to identify or track. This capability is vital for environments that handle sensitive data or are subject to strict compliance regulations. SSL/TLS Interception of Encrypted Traffic SSL/TLS interception can handle encrypted communications by HTTP proxy servers. The proxy server can inspect HTTPS traffic to detect hidden threats and temporarily decrypt data to scan for malware or other security threats. SSL/TLS interceptions require careful management to ensure the security of decrypted information. Implementing a robust SSL certificate management policy is essential to protect sensitive data. This policy allows effective monitoring of encrypted data without compromising integrity. Our Final Thoughts on HTTP Proxy Servers as an Invaluable Linux Network Security Tool HTTP proxies have become essential in an age of constantly evolving cyber threats. They enhance network security and privacy. These proxies protect organizations from malicious sites and unauthorized entry by managing web traffic, caching the content, and implementing strict controls. Privacy measures like IP masking and tracking header removal enhance anonymity for users, assuring safe browsing. With the advancement of technology, secure browsing solutions such as HTTP proxies are becoming increasingly important. These powerful tools can create a safer online environment while maintaining the privacy and safety that users deserve. . Uncover the ways in whichHTTP proxy servers bolster the security of Linux networks and protect user anonymity during online activities.. Linux proxy servers, HTTP proxy security, internet privacy tools, network performance enhancement. . Brittany Day
Nov 11, 2024
•
Network Security
82
traffic managementcourt rulingnet neutralityU.S. Court Ruling on FCC’s Net Neutrality Authority and Broadband Control
On Tuesday in Washington, DC, the U.S. Court of Appeals for the District of Columbia ruled that the FCC lacks authority to require broadband providers to give equal treatment to all Internet traffic flowing over their networks.. This begs two questions. First, if not the FCC, then who has that authority? The second, bigger question is what does this do for the issue of Net Neutrality in the United States? The decision was a victory for cable provider Comcast who has been accused of traffic shaping on its network. Comcast argues, perhaps correctly, that since they built the network and since they manage the network, they are in the right when it comes to what traffic can and cannot cross their network. On the other side are users and companies, like Google, that feel that the pipes, regardless of who owns them, should be open and available to whomever wants to use them. And therein is the rub. Third party providers of services such as VoIP have long complained that Comcast has been throttling their packets, resulting in a lower quality of service, while Comcast gave a higher QoS its own packets. This is all well and good if you are trying to keep a competing product out (or so the mantra of capitalism would go) but it causes issues when you are communicating between systems, or, as Google has argued in the past, when the route from Point A to Point E goes across the network of Point C. The link for this article located at Linux Journal is no longer available. . This begs two questions. First, if not the FCC, then who has that authority? The second, bigger ques. tuesday, washington, court, appeals, district, columbia, ruled. . Anthony Pell
Apr 08, 2010
•
Government
74
attack preventiontraffic managementsecurity tipsEnhance Your Application Security With Quick Tips Against Attacks
A traditional firewall is commonly employed to restrict Web site access to Ports 80 and 443, used for HTTP and Secure Sockets Layer communications, respectively. However, such a device does very little to deter attacks that come over these connections. URL query string manipulations including SQL injection, modification of cookie values, tampering of form field data, malformed requests and a variety of other nasty tricks are often given free passage on allowed, legitimate traffic. Making your Web Application secure is a important feature to implement. This article looks at some quick but important things you can do to improve your application security.. . A traditional firewall is commonly employed to restrict Web site access to Ports 80 and 443, used fo. traditional, firewall, commonly, employed, restrict, ports. . Bill Locke
Jun 05, 2008
•
Network Security
74
network protectionfirewalltraffic managementFreeBSD Firewall Setup Using IPFW for Enhanced Security
Have you heard about IPfirewall? One service that should be protected by a firewall is a web server. " You do not need to compile IPFW into the FreeBSD kernel unless you want NAT function enabled. " So it's not very hard to set up a FreeBSD firewall and with this articles user's should have a more secure operating system. . Ipfirewall (ipfw) is a FreeBSD IP packet filter and traffic accounting facility. IPFW is included in the basic FreeBSD install as a separate run time loadable module. The system will dynamically load the kernel module when the rc.conf statement firewall_enable= The link for this article located at cyberciti is no longer available. . Discover the steps to configure a FreeBSD firewall using PF for improved security and effective traffic control.. FreeBSD Firewall Setup, IPFW Configuration, Network Security Solution. . Bill Locke
Jul 05, 2007
•
Network Security
81
traffic managementsecurity threatspam analysisExploring Email Harvesters' Configurations And Spam Impact Analysis
In previous posts on web application email harvesting, and the distributed email harvesting honeypot, I commented on a relatively less popular threat - the foundation for sending spam and phishing emails, namely collecting publicly available email addresses. The other day I came across an email harvester and decided to comment on its configuration file. . Thankfully, there're many spam poison projects where these crawlers get directed to a huge number of randomly generated email addresses. And while the results are evident, namely they're picking them up and poisoning their databases with non-existent emails it is questionable if that's the best way to fight spam, since the spammers are going to send their message to anyone, even to the non-existent email addresses causing network load. Something else worth mentioning, these email harvesters are starting to pick up [at] and [dot] type of obfuscation too. The link for this article located at Dancho Danchev is no longer available. . Thankfully, there're many spam poison projects where these crawlers get directed to a huge number of. email, harvesting, previous, posts, application, distributed, honeypot. . LinuxSecurity.com Team
Jan 23, 2007
•
Privacy
77
traffic managementsecurity strategynetwork solutionsBT's Approach to Cost-Effective Solutions for DDoS Mitigation Challenges
SPs could provide the answer to combatting DDoS attacks according to BT, providing customers with DDoS mitigation at a price far cheaper than buying it in directly. According to Mick Creane, Head of Managed Security Strategy at BT, ISPs are in a unique position to be able to make DDoS mitigation affordable for its customers, and it's something BT is already considering. 'We're looking at technology in the core of our network that would direct traffic through a "scrubbing centre". This terminates requests, checks if they are valid and if they are not, drops them. Where they are valid, they are forwarded to the original destination,' said Creane. 'It's expensive, but with BT you have economies of scale. So we would divert traffic as necessary [rather than route everything through the "scrubbing centre"].' . The link for this article located at PCPro.co.uk is no longer available. . XYZ Corp aims to enhance cybersecurity measures by introducing cost-effective strategies to combat phishing attacks for its clients via advanced digital tools.. DDoS Mitigation, Network Security, Traffic Management, Managed Security, Innovative Solutions. . LinuxSecurity.com Team
Nov 28, 2006
•
Server Security
77
web securitytraffic managementopenDNSOpenDNS Traffic Solutions: Boost Security And Speed Online
OpenDNS is a new start up that wants users to redirect web traffic through its DNS nameservers, where an unusually large cache and an aggregated list of sites deemed guilty of phishing will make our web surfing faster and safer. It. The company has two primary selling points. The first is its phishing filter, a list of malicious sites aggregated by a number of different sources that are blocked when access is attempted through OpenDNS. The second is faster page loads due to the company The link for this article located at TechCrunch is no longer available. . Explore how OpenDNS elevates internet safety through its anti-phishing technology and accelerated website access. Browse securely!. OpenDNS DNS services, Web Security Solutions, Phishing Protection, Traffic Management. . LinuxSecurity.com Team
Jul 19, 2006
•
Server Security
Get the latest News and Insights
Get the latest Linux and open source security news straight to your inbox.
Community Poll
Should Linux servers automatically install security updates?
Trending News
Search Topics
Powered By
Linux Security - Your source for Top Linux News, Advisories, HOWTOs and Feature Releases
QUICK LINKS
subscribe to newsletters!
Like staying secure? So do we.
Sign up for updates, tips, and alerts!