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Gonzalo San Gil, PhD.

How to Secure Network Services Using TCP Wrappers in Linux | Linux.com | The source for... - 0 views

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    "In this article we will explain what TCP wrappers are and how to configure them to restrict access to network services running on a Linux server. Before we start, however, we must clarify that the use of TCP wrappers does not eliminate the need for a properly configured firewall."
Gonzalo San Gil, PhD.

5 Best Linux Distros for Security - Datamation - 0 views

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    "Linux distros have has long emphasized security and related matters like firewalls, penetration testing, anonymity, and privacy. These distributions pay special attention to security."
Gonzalo San Gil, PhD.

Linux Foundation Advances Security Efforts via Badging Program - 0 views

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    " The Linux Foundation Core Infrastructure Initiative's badging program matures, as the first projects to achieve security badges are announced."
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    " The Linux Foundation Core Infrastructure Initiative's badging program matures, as the first projects to achieve security badges are announced."
Gonzalo San Gil, PhD.

Penetration Testing with Kali Linux (OSCP) Course Review * HaCoder - 0 views

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    "This course review will be discussing my experiences with the Penetration Testing with Kali Linux (PWK) course, as well as the Offensive Security Certified Professional (OSCP) exam and certification. This course has been designed by the Offensive Security team, and is instructed by Mati Aharoni (Muts)."
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    "This course review will be discussing my experiences with the Penetration Testing with Kali Linux (PWK) course, as well as the Offensive Security Certified Professional (OSCP) exam and certification. This course has been designed by the Offensive Security team, and is instructed by Mati Aharoni (Muts)."
Gonzalo San Gil, PhD.

Making UEFI Secure Boot Work With Open Platforms | The Linux Foundation - 0 views

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    ["Secure boot" is a technology described by recent revisions of the UEFI specification; it offers the prospect of a hardware-verified, malware-free operating system bootstrap process that can improve the security of many system deployments. Linux and other open operating systems will be able to take advantage of secure boot if it is implemented properly in the hardware. This document is intended to describe how the UEFI secure boot specification can be implemented to interoperate well with open systems and to avoid adversely affecting the rights of the owners of those systems while providing compliance with proprietary software vendors' requirements. To learn more about the recommendations please download the .PDF below. ]
Gonzalo San Gil, PhD.

Linux and Unix Port Scanning With netcat [nc] Command - 1 views

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    "by Vivek Gite on July 12, 2007 last updated November 27, 2015 in Linux, Networking, UNIX How do I find out which ports are opened on my own server? How do I run port scanning using the nc command instead of the nmap command on a Linux or Unix-like systems?"
Gonzalo San Gil, PhD.

How to manage your passwords from the Linux command line - 0 views

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    "Posted by Administrator | Mar 18, 2015 | Linux | 0 comments The authentication with passwords has been quite wide spread these days. This safety measure might be quite good for the security matter, but, eventually, consumers appear in a big need of password management method - a tool, a program or a clever technique - in order to save the used passwords during all of the processes. "
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    "Posted by Administrator | Mar 18, 2015 | Linux | 0 comments The authentication with passwords has been quite wide spread these days. This safety measure might be quite good for the security matter, but, eventually, consumers appear in a big need of password management method - a tool, a program or a clever technique - in order to save the used passwords during all of the processes. "
Paul Merrell

Use Tor or 'EXTREMIST' Tails Linux? Congrats, you're on the NSA's list * The Register - 0 views

  • Alleged leaked documents about the NSA's XKeyscore snooping software appear to show the paranoid agency is targeting Tor and Tails users, Linux Journal readers – and anyone else interested in online privacy.Apparently, this configuration file for XKeyscore is in the divulged data, which was obtained and studied by members of the Tor project and security specialists for German broadcasters NDR and WDR. <a href="http://pubads.g.doubleclick.net/gampad/jump?iu=/6978/reg_security/front&sz=300x250%7C300x600&tile=3&c=33U7ZK6qwQrMkAACSrTugAAAP1&t=ct%3Dns%26unitnum%3D3%26unitname%3Dwww_top_mpu%26pos%3Dtop%26test%3D0" target="_blank"> <img src="http://pubads.g.doubleclick.net/gampad/ad?iu=/6978/reg_security/front&sz=300x250%7C300x600&tile=3&c=33U7ZK6qwQrMkAACSrTugAAAP1&t=ct%3Dns%26unitnum%3D3%26unitname%3Dwww_top_mpu%26pos%3Dtop%26test%3D0" alt=""></a> In their analysis of the alleged top-secret documents, they claim the NSA is, among other things:Specifically targeting Tor directory servers Reading email contents for mentions of Tor bridges Logging IP addresses used to search for privacy-focused websites and software And possibly breaking international law in doing so. We already know from leaked Snowden documents that Western intelligence agents hate Tor for its anonymizing abilities. But what the aforementioned leaked source code, written in a rather strange custom language, shows is that not only is the NSA targeting the anonymizing network Tor specifically, it is also taking digital fingerprints of any netizens who are remotely interested in privacy.
  • These include readers of the Linux Journal site, anyone visiting the website for the Tor-powered Linux operating system Tails – described by the NSA as "a comsec mechanism advocated by extremists on extremist forums" – and anyone looking into combining Tails with the encryption tool Truecrypt.If something as innocuous as Linux Journal is on the NSA's hit list, it's a distinct possibility that El Reg is too, particularly in light of our recent exclusive report on GCHQ – which led to a Ministry of Defence advisor coming round our London office for a chat.
  • If you take even the slightest interest in online privacy or have Googled a Linux Journal article about a broken package, you are earmarked in an NSA database for further surveillance, according to these latest leaks.This is assuming the leaked file is genuine, of course.Other monitored sites, we're told, include HotSpotShield, FreeNet, Centurian, FreeProxies.org, MegaProxy, privacy.li and an anonymous email service called MixMinion. The IP address of computer users even looking at these sites is recorded and stored on the NSA's servers for further analysis, and it's up to the agency how long it keeps that data.The XKeyscore code, we're told, includes microplugins that target Tor servers in Germany, at MIT in the United States, in Sweden, in Austria, and in the Netherlands. In doing so it may not only fall foul of German law but also the US's Fourth Amendment.
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  • The nine Tor directory servers receive especially close monitoring from the NSA's spying software, which states the "goal is to find potential Tor clients connecting to the Tor directory servers." Tor clients linking into the directory servers are also logged."This shows that Tor is working well enough that Tor has become a target for the intelligence services," said Sebastian Hahn, who runs one of the key Tor servers. "For me this means that I will definitely go ahead with the project.”
  • While the German reporting team has published part of the XKeyscore scripting code, it doesn't say where it comes from. NSA whistleblower Edward Snowden would be a logical pick, but security experts are not so sure."I do not believe that this came from the Snowden documents," said security guru Bruce Schneier. "I also don't believe the TAO catalog came from the Snowden documents. I think there's a second leaker out there."If so, the NSA is in for much more scrutiny than it ever expected.
Gonzalo San Gil, PhD.

Linux Servers Security: Hack and Defend - Free Sample Chapter - Chris Binnie - 0 views

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    "I'm delighted to be able to offer the first chapter of my brand new book, Linux Server Security: Hack and Defend, for free as a downloadable PDF."
Gonzalo San Gil, PhD.

Linux workstation security checklist | lfit/itpol @ GitHub - 0 views

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    "This is a set of recommendations used by the Linux Foundation for their systems administrators. All of LF employees are remote workers and we use this set of guidelines to ensure that a sysadmin's system passes core security requirements in order to reduce the risk of it becoming an attack vector against the rest of our infrastructure"
Gonzalo San Gil, PhD.

Linux Concerns: Convenience vs. Security - Datamation - 0 views

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    "Ask why you should use Linux, and inevitably someone will claim that it is more secure than Windows, and doesn't need anti-virus protection, either."
Gonzalo San Gil, PhD.

How to use the NMAP Security Scanner on Linux - 1 views

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    "Nmap is a free and open source network discovery and security auditing utility that is widely used in the Linux users community as it is simple to use yet very powerful. Nmap works by sending data packets on a specific target (by IP) and by interpreting the incoming packets to determine what posts are open/closed, what services are running on the scanned system, whether firewalls or filters are set up and enabled, and finally what operation system is running. Those abilities are used for a wide variety of reasons and howtoforge.com is not encouraging nor suggesting the use of nmap for malicious purposes"
Gonzalo San Gil, PhD.

Fallo en la biblioteca C de GNU que deja a miles de programas y a Linux desprotegido | ... - 0 views

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    "Más noticias relativas a la seguridad y que salpican a Linux. No han sido los desarrolladores del kernel Linux los que han metido la pata, pero sí los desarrolladores de la biblioteca C del proyecto GNU. "
Gonzalo San Gil, PhD.

Linux Kernel Security (SELinux vs AppArmor vs Grsecurity) | [ # ! 2009 to check and upd... - 0 views

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    " Unfortunately, stock kernel is not secured out of box. There are some important Linux kernel patches to secure your box"
Gonzalo San Gil, PhD.

Linux Today - How 'Security Fatigue' Affects Our Choices Online - 0 views

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    "An overabundance of security news and alerts has led to "security fatigue," which is causing users to make bad choices when it comes to online security, suggests a report from the National Institute of Standards and Technology (NIST)."
Gonzalo San Gil, PhD.

Best Open Source Security Tools of 2015 (and 2016) - Linux Audit - 0 views

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    "lways looking for a better tool to help you in your work? If there is one website who knows what is happening in the field of security tools, it is ToolsWatch. The site covers new tools, and promotes existing projects when they release a new version."
Gonzalo San Gil, PhD.

Project fosters free, open, secure public hotspots ·  LinuxGizmos.com - 1 views

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    "The EFF's Open Wireless Router project is developing an open source CeroWRT-based Linux stack for secure, WiFi routers that can publicly share data." # ! #Access for #Everyone
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    "The EFF's Open Wireless Router project is developing an open source CeroWRT-based Linux stack for secure, WiFi routers that can publicly share data." # ! #Access for #Everyone
Gonzalo San Gil, PhD.

Secure File Transfer | Linux Journal - 0 views

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    "File transfer between Linux systems (and perhaps all POSIX systems in general) is in some ways a neglected subject. The arcane protocols in common use are far from secure, and the SSH replacements offer too much power and complexity. Servers holding highly sensitive data... "
Gonzalo San Gil, PhD.

Open Source Security Process -- Part 1: A Cloud Security Introduction | Linux.com - 0 views

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    [In part one of this four-part series, Xen Project Advisory Board Chairman Lars Kurth takes a look at the theories behind cloud security and how they relate to The Walking Dead -- yes, the TV show. Read on to find out more. ...]
Gonzalo San Gil, PhD.

Free Software Foundation statement on the GNU Bash "shellshock" vulnerability - Free So... - 0 views

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    "by Free Software Foundation - Published on Sep 25, 2014 04:51 PM A major security vulnerability has been discovered in the free software shell GNU Bash. The most serious issues have already been fixed, and a complete fix is well underway. GNU/Linux distributions are working quickly to release updated packages for their users. All Bash users should upgrade immediately, and audit the list of remote network services running on their systems. " [# ! + http://security.stackexchange.com/questions/68168/is-there-a-short-command-to-test-if-my-server-is-secure-against-the-shellshock-b]
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    "by Free Software Foundation - Published on Sep 25, 2014 04:51 PM A major security vulnerability has been discovered in the free software shell GNU Bash. The most serious issues have already been fixed, and a complete fix is well underway. GNU/Linux distributions are working quickly to release updated packages for their users. All Bash users should upgrade immediately, and audit the list of remote network services running on their systems. "
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