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  • Projects 

    March 27, 2009, 02:22

    Welcome to the R-fx Networks Projects, here you will find a number of projects which have been developed to help make a system administrators life a little…

    • Advanced Policy Firewall 

      March 28, 2009, 23:32

      Current Release: http://www.rfxn.com/downloads/apf-current.tar.gz http://www.rfxn.com/appdocs/README.apf http://www.rfxn.com/appdocs/CHANGELOG.apf Descrip…

    • Brute Force Detection 

      March 28, 2009, 23:56

      Current Release: http://www.rfxn.com/downloads/bfd-current.tar.gz http://www.rfxn.com/appdocs/README.bfd http://www.rfxn.com/appdocs/CHANGELOG.bfd Descri…

    • Incremental rsync 

      May 4, 2010, 10:11

      Current Release: http://www.rfxn.com/downloads/irsync-current.tar.gz http://www.rfxn.com/appdocs/README.irsync http://www.rfxn.com/appdocs/CHANGELOG.irsync …

    • Linux Environment Security 

      March 29, 2009, 00:06

      Current Release: http://www.rfxn.com/downloads/les-current.tar.gz http://www.rfxn.com/appdocs/README.les http://www.rfxn.com/appdocs/CHANGELOG.les Descri…

    • Linux Malware Detect 

      May 12, 2010, 00:13

      Linux Malware Detect (LMD) is a malware scanner that is designed around the threats faced in shared hosted environments.

    • Linux Socket Monitor 

      March 31, 2009, 03:16

      Current Release: http://www.rfxn.com/downloads/lsm-current.tar.gz http://www.rfxn.com/appdocs/README.lsm http://www.rfxn.com/appdocs/CHANGELOG.lsm Descrip…

    • Network Socket Inode Validation 

      March 31, 2009, 03:32

      Current Release: http://www.rfxn.com/downloads/nsiv-current.tar.gz http://www.rfxn.com/appdocs/README.nsiv http://www.rfxn.com/appdocs/CHANGELOG.nsiv Desc…

    • Process Resource Monitor 

      March 31, 2009, 04:00

      Current Release: http://www.rfxn.com/downloads/prm-current.tar.gz http://www.rfxn.com/appdocs/README.prm http://www.rfxn.com/appdocs/CHANGELOG.prm Descrip…

    • System Integrity Monitor 

      March 31, 2009, 04:16

      Current Release: http://www.rfxn.com/downloads/sim-current.tar.gz http://www.rfxn.com/appdocs/README.sim http://www.rfxn.com/appdocs/CHANGELOG.sim Descri…

    • System Priority 

      March 31, 2009, 04:20

      Current Release: http://www.rfxn.com/downloads/spri-current.tar.gz http://www.rfxn.com/appdocs/README.spri http://www.rfxn.com/appdocs/CHANGELOG.spri Desc…

  • About Us 

    March 27, 2009, 00:46

    What is R-fx Networks? In the spring of 2001, R-fx Networks was born as nothing more than a simple web hosting/design site with a single project fostering…

    • Donation Roll 

      November 17, 2010, 00:14

      The projects that R-fx Networks publishes are made possible through the contributions of community supporters and their donations, this page is here to…

    • Site Map 

      March 3, 2011, 18:44

      No description found for this item.


Blog Posts

  • Category: Development  (25)
    • BFD 1.5-1 Update: Forged Syslog Data Vulnerability by: Ryan M.

      January 29, 2014, 17:40

      Current Release: http://www.rfxn.com/downloads/bfd-current.tar.gz http://www.rfxn.com/appdocs/README.bfd http://www.rfxn.com/appdocs/CHANGELOG.bfd An…

    • LMD 1.4.1: Delivering on your requests by: Ryan M.

      November 20, 2011, 07:24

      The release of LMD 1.4.1 is now live and with it comes a few new features. In this small update, I have tried to deliver on on a couple of common feature…

    • Linux Malware Detect: 2 Years Strong by: Ryan M.

      October 6, 2011, 04:28

      As cliche as it sounds, where has the time gone? Today we celebrate two years of Linux Malware Detect, open-source (web) malware detection. The project has…

    • LMD 1.4: Little Something For Everyone! by: Ryan M.

      April 20, 2011, 01:25

      The much awaited for 1.4 release of Linux Malware Detect is here! In this release there is quite literally something for everyone, from massive performance…

    • LMD 1.3.9r1: Hexdepth Bug by: Ryan M.

      April 3, 2011, 00:18

      I have put up a revision to the 1.3.9 release of LMD that fixes a hexdepth bug in which malware greater than 65Kbytes would cause an error in the internal…

    • LMD 1.3.9: Quietly Awesome by: Ryan M.

      March 16, 2011, 04:20

      It has been a busy couple of weeks for the LMD project, lots of late nights and sleepless days behind me and I can say I am a 'little' happier with where…

    • LMD 1.3.7: Milestones, Fixes & Signature Updates by: Ryan M.

      November 27, 2010, 14:43

      Today marks the release of LMD 1.3.7, which is a minor release update that fixes a few bugs and is also the final 1.x release before version 2.0 as described…

    • LMD: One Year Later by: Ryan M.

      November 8, 2010, 12:46

      With my move back to Canada behind me and adjusting to some new routines with life, its about time to get back into the mix with the projects. Though things…

    • Signature Updates & Threat Database by: Ryan M.

      September 16, 2010, 11:08

      It has been a very active month for those that pay attention to the signatures as they are released, you might have noticed a sudden spike about two weeks ago…

    • Understanding Signatures by: Ryan M.

      August 16, 2010, 04:09

      The signature naming scheme for LMD is a little confusing and something I've received more than a few questions about, more so about what the *.unclassed…

    • ATF v2: Weighted Threats by: Ryan M.

      August 14, 2010, 07:25

      When I first introduced you all to the Aggregate Threat Feed back in May, it was a much smaller feed with very simple ambitions -- pulling together threat data…

    • Signature Updates: Month In Review by: Ryan M.

      July 24, 2010, 15:15

      Since I will be busy this coming week with other priorities, I am posting an early month in review blog on signature updates. In the last 3 weeks we have…

    • Signatures For The Masses by: Ryan M.

      June 26, 2010, 21:06

      Today I found the time and energy, despite how tedious it was, to go over the last two weeks worth of malware submissions and missed edge IPS data from when I…

    • I am Back: Signature Updates by: Ryan M.

      June 24, 2010, 01:37

      I am back, fresh off a trip home to Montreal, which I must say was an absolutely amazing time. It has left me reflecting on allot of things, most importantly…

    • rfxn.com In Numbers by: Ryan M.

      May 27, 2010, 10:50

      Yup, nothing to see here except numbers... 2,018: Downloads of the newest project, Linux Malware Detect, month to date. 2,294: Signatures for Linux Malware…

    • Linux Malware Detect v1.3.6: Loose Ends by: Ryan M.

      May 24, 2010, 13:33

      In LMD 1.3.3 there was allot of changes, 29 to be exact, that made LMD much more robust and especially the monitoring component, much more usable. If that…

    • Let The Rewrites Begin: New Life For PRM by: Ryan M.

      May 24, 2010, 12:33

      In my last post, I reflected on the last 7-8 years of projects here at rfxn.com, in doing so I also dug up some statistics on project downloads. I not only did…

    • Linux Malware Detect v1.3.3: Making good things better by: Ryan M.

      May 15, 2010, 02:45

      This morning I have put out LMD v1.3.3, this is on the back of two other successive releases in recent days that improved LMD in many areas, along with…

    • LMD Signatures: RSS Feed & XML by: Ryan M.

      May 12, 2010, 20:40

      While I was making some signature updates this afternoon, It occurred to me that it might be useful if the signatures were available through an RSS feed for…

    • Better Late Than Never: Linux Malware Detect 1.3 by: Ryan M.

      May 12, 2010, 01:13

      Today I have released Linux Malware Detect (LMD) 1.3, the first public stable release of my malware detection tool. The documentation is a little thin but the…

    • BFD 1.4: Important Security Fix by: Ryan M.

      May 8, 2010, 11:53

      Today I have put up a new release of BFD, version 1.4, that addresses an unsanitized variable issue that is used on the command line. This is a serious issue…

    • (ATF) Aggregate Threat Feed by: Ryan M.

      May 2, 2010, 23:51

      For my first post back into things in awhile (a long while), I thought I would introduce everyone to the sexyness that i've called the Aggregate Threat…

    • Linux Malware Detectection by: Ryan M.

      October 19, 2009, 01:35

      I have the last few weeks been working on a new project for malware detection on Linux web servers, it is already at a pre-release version in use at work and…

    • Snorting the Web Farm by: Ryan M.

      June 10, 2009, 18:24

      Here are some rules for you snort freaks to chew on that I have found useful in web heavy environments. alert tcp $HTTP_SERVERS $HTTP_PORTS -> any any…

    • BOGON Filtering, Update It by: Ryan M.

      April 17, 2009, 20:45

      One of the features used by APF to prevent address spoofing is that it filters reserved IP address space, also known as BOGON filtering. This is an otherwise…

  • Category: My Blog  (29)
    • BFD 1.5-1 Update: Forged Syslog Data Vulnerability by: Ryan M.

      January 29, 2014, 17:40

      Current Release: http://www.rfxn.com/downloads/bfd-current.tar.gz http://www.rfxn.com/appdocs/README.bfd http://www.rfxn.com/appdocs/CHANGELOG.bfd An…

    • LMD 1.4.1: Delivering on your requests by: Ryan M.

      November 20, 2011, 07:24

      The release of LMD 1.4.1 is now live and with it comes a few new features. In this small update, I have tried to deliver on on a couple of common feature…

    • Linux Malware Detect: 2 Years Strong by: Ryan M.

      October 6, 2011, 04:28

      As cliche as it sounds, where has the time gone? Today we celebrate two years of Linux Malware Detect, open-source (web) malware detection. The project has…

    • ATA Over Ethernet: As an Alternative by: Ryan M.

      April 4, 2011, 09:00

      New technologies, new toys -- Oh how I love getting my hands dirty with them. Today I am going to have a look at ATA Over Ethernet (AoE) as an alternative…

    • LMD 1.3.9r1: Hexdepth Bug by: Ryan M.

      April 3, 2011, 00:18

      I have put up a revision to the 1.3.9 release of LMD that fixes a hexdepth bug in which malware greater than 65Kbytes would cause an error in the internal…

    • On The Road: Network Disaster & Dual Public-Private Network by: Ryan M.

      March 24, 2011, 11:40

      As an administrator within a mid-sized organization, you can find yourself wearing many occupational hats, which becomes only second nature after awhile. One…

    • Data Integrity: AIDE for Host Based Intrusion Detection by: Ryan M.

      March 17, 2011, 11:01

      It used to be all the talk, everyone knew it, accepted it but few did anything about it and still even today, very few do anything about it. What is it? Data…

    • LMD 1.3.9: Quietly Awesome by: Ryan M.

      March 16, 2011, 04:20

      It has been a busy couple of weeks for the LMD project, lots of late nights and sleepless days behind me and I can say I am a 'little' happier with where…

    • Happy Birthday APF: 8 Years Strong by: Ryan M.

      March 9, 2011, 13:30

      On this day eight years ago, Advanced Policy Firewall (APF) version 0.5 for Linux was publicly released. Since then, APF has stood the test of time and still…

    • Raid Management: Know Whats Really Going On by: Ryan M.

      February 14, 2011, 01:59

      In today's hosting environment it is common place for servers to have hardware based raid cards but what is not common place is having a reliable method for…

    • Donations: By The Numbers by: Ryan M.

      November 18, 2010, 01:00

      I was recently asked by someone about the donations that rfxn.com receives, more specifically what it amounts to. In the interest of answering this person and…

    • LMD: One Year Later by: Ryan M.

      November 8, 2010, 12:46

      With my move back to Canada behind me and adjusting to some new routines with life, its about time to get back into the mix with the projects. Though things…

    • Signature Updates & Threat Database by: Ryan M.

      September 16, 2010, 11:08

      It has been a very active month for those that pay attention to the signatures as they are released, you might have noticed a sudden spike about two weeks ago…

    • Tracking & Killing Bot Networks by: Ryan M.

      August 17, 2010, 05:21

      In a previous blog I discussed how one of the more enjoyable parts of my day-to-day malware rituals also involves the tracking and killing of command and…

    • Understanding Signatures by: Ryan M.

      August 16, 2010, 04:09

      The signature naming scheme for LMD is a little confusing and something I've received more than a few questions about, more so about what the *.unclassed…

    • ATF v2: Weighted Threats by: Ryan M.

      August 14, 2010, 07:25

      When I first introduced you all to the Aggregate Threat Feed back in May, it was a much smaller feed with very simple ambitions -- pulling together threat data…

    • Signature Updates: Month In Review by: Ryan M.

      July 24, 2010, 15:15

      Since I will be busy this coming week with other priorities, I am posting an early month in review blog on signature updates. In the last 3 weeks we have…

    • The other side: who uses rfxn.com projects? by: Ryan M.

      July 24, 2010, 02:52

      In one of my usual A.D.D. moments I decided to aggregate some data on project downloads and daily update queries to the rfxn.com server, to get a picture of…

    • Projects: The personal costs by: Ryan M.

      July 20, 2010, 00:28

      When you do open source development, especially as an independent developer, there is a constant struggle that must be balanced between that of work and…

    • Bot Networks: Jacking the Jackers by: Ryan M.

      July 6, 2010, 01:58

      One of the more interesting parts of my malware hunting routine is when I notice new command & control hubs for bot networks in the source of ircbot malware…

    • rfxn.com In Numbers by: Ryan M.

      May 27, 2010, 10:50

      Yup, nothing to see here except numbers... 2,018: Downloads of the newest project, Linux Malware Detect, month to date. 2,294: Signatures for Linux Malware…

    • Linux Malware Detect v1.3.6: Loose Ends by: Ryan M.

      May 24, 2010, 13:33

      In LMD 1.3.3 there was allot of changes, 29 to be exact, that made LMD much more robust and especially the monitoring component, much more usable. If that…

    • The Test Of Time: 7 Years & Counting... by: Ryan M.

      May 17, 2010, 13:33

      Today I woke up and was in a weird mood, I started to take stock of some thing while at the same time cleaning out the rfxn.com projects and downloads repo…

    • Better Late Than Never: Linux Malware Detect 1.3 by: Ryan M.

      May 12, 2010, 01:13

      Today I have released Linux Malware Detect (LMD) 1.3, the first public stable release of my malware detection tool. The documentation is a little thin but the…

    • Nginx: Caching Proxy by: Ryan M.

      May 6, 2010, 14:45

      Recently I started to tackle a load problem on one of my personal sites, the issue was that of a poorly written but exceedingly MySQL heavy application and the…

    • Out with the old, In with the new! by: Ryan M.

      May 6, 2010, 03:25

      The old theme was doing my head in, so I ditched it. Keep an eye out in the coming days/weeks for new releases of APF & BFD in addition to a few more howto…

    • The Way Forward by: Ryan M.

      October 18, 2009, 00:53

      It is hard to believe the year is almost done and gone already, it has been busy for me with some life drama earlier in the year then a couple of larger…

    • "oops" Wrong Server! by: Ryan M.

      March 31, 2009, 06:07

      So this past weekend, I did the unthinkable, I accidentally recycled the wrong dedicated server at work. Usually, this is not much of an issue¬† (not that I…

    • New Site, At Last! by: Ryan M.

      March 1, 2009, 04:32

      It has been on my plate for a long time now to redo the R-fx Networks site, although this process began some years ago with a few incarnations of new sites…

  • Category: HowTo  (8)
    • ATA Over Ethernet: As an Alternative by: Ryan M.

      April 4, 2011, 09:00

      New technologies, new toys -- Oh how I love getting my hands dirty with them. Today I am going to have a look at ATA Over Ethernet (AoE) as an alternative…

    • Data Integrity: AIDE for Host Based Intrusion Detection by: Ryan M.

      March 17, 2011, 11:01

      It used to be all the talk, everyone knew it, accepted it but few did anything about it and still even today, very few do anything about it. What is it? Data…

    • Raid Management: Know Whats Really Going On by: Ryan M.

      February 14, 2011, 01:59

      In today's hosting environment it is common place for servers to have hardware based raid cards but what is not common place is having a reliable method for…

    • Nginx: Caching Proxy by: Ryan M.

      May 6, 2010, 14:45

      Recently I started to tackle a load problem on one of my personal sites, the issue was that of a poorly written but exceedingly MySQL heavy application and the…

    • IRSYNC & Limiting Passwordless SSH Keys by: Ryan M.

      May 4, 2010, 11:54

      Anyone who has ever used SSH key-pairs to access more than a couple of servers (or hundreds in my case), will tell you they are an invaluable convenience. It…

    • Upgrade CentOS 4.8 to 5.x (32bit) by: Ryan M.

      October 20, 2009, 03:10

      Traditionally, the dist upgrade path that many were familiar with from the RH8/9->Fedora or similarly Fedora dist upgrades, have applied more or less to…

    • Snorting the Web Farm by: Ryan M.

      June 10, 2009, 18:24

      Here are some rules for you snort freaks to chew on that I have found useful in web heavy environments. alert tcp $HTTP_SERVERS $HTTP_PORTS -> any any…

    • BOGON Filtering, Update It by: Ryan M.

      April 17, 2009, 20:45

      One of the features used by APF to prevent address spoofing is that it filters reserved IP address space, also known as BOGON filtering. This is an otherwise…


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