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- OpenBSD DHCP vulnerability fixed
- A vulnerability in the OpenBSD's DHCP has been patched. This vulnerability could allow attackers on the local network to successfully launch a denial-of-service attack. Though unlikely, Core Security, which reported the vulnerability, warns that the possibility of arbitrary code execution stemming from this vulnerability should not be discounted....
- Tags: DHCP, Vulnerability, OpenBSD, Core Security, UNIX, Operating Systems, Open Source, Security, Networking, Software, Paul Mah
- Blog posts 2007-10-13
- Linus contradicts OpenBSD founder on Intel TLB issue
- OpenBSD founder Theo de Raadt has been making a lot of noise over a change in Intel's current generation Core 2 microprocessor goes as far to claim that this will lead to serious security flaws. Linus Torvalds by contrast has given a completely opposite view of the situation while...
- Tags: Servers, Security, Processors, News, Microsoft, Linux, Intel, Hardware, Desktop, AMD
- Blog posts 2007-06-29
- Review: Open source OSSEC for host-based intrusion detection
- I previously took a look at some of the ways an Intrusion Detection System IDS can be deployed to monitor for suspicious network activities. I mentioned host-based Intrusion Detection Systems HIDS but didn't look at any specific examples.While randomly browsing the TechRepublic.com software archives, I came across OSSEC HIDS. OSSEC...
- Tags: Security, Openbsd, Network Tools, Open Source, Mac, Windows, Vulnerability, System Monitoring, Networking, Linux, Risk, Infrastructure, General
- Blog posts 2007-06-12
- Check your bandwidth usage with bwm-ng
- Sometimes it can be very useful to know exactly how much network bandwidth a particular host is using or how much traffic is being handled by a gateway. As a tool for taking a quick peek at network activity, I have yet to find a tool better than bwm-ng.Bandwidth Monitor...
- Tags: Openbsd, Open Source, Networking, Network Tools, Monitoring
- Blog posts 2007-05-30
- OpenBSD remote vulnerability
- OpenBSD have recently had to change their motto ‘Only one remote exploit in 10 years’ to ‘Only two remote holes in the default install, in more than 10 years’ following the disclosure of a remotely exploitable vulnerability in the systems IPv6 data handling. The issue was discovered by security consulting...
- Tags: General, Security, Openbsd, Open Source
- Blog posts 2007-03-16
- OpenBSD remote kernel vulnerability
- Several versions of the OpenBSD OS contain flaws related to processing IPv6 packets. Researchers at Core Security Technologies Inc. identified the affected versions as 3.1, 3.6, 3.8, 3.9, 4.0, and 4.1.The vulnerability is exploited by sending a fragmented IPv6 packet to the target system. This can cause a...
- Tags: It Management, Rootkit, Security, vulnerability
- Blog posts 2007-03-14
- OpenBSD remote kernel vulnerability
- I don't believe soThe source on which I based the post didn't mention freebsd.does this affect freebsd also?Which does have various packages/applications that were ported from freebsd? Ie: pfctl is one.DanThank youAppreciate the followup.Dan
- Tags: UNIX, droolin, Dan, OpenBSD
- Discussion threads 2007-03-14
- Setting up VPN tunnels with OpenBSD: Tutorial 3
- Haven't setthis up yet, but looks to be pretty thuorough. Ill give it a shot this afternoon if I have time. Thanks much for posting this, I can see alot of use.
- Tags: isaakd@..., feedback, networking, OpenBSD
- Discussion threads 2007-02-07
- Remote Access: PPTP VPN with OpenBSD Tutorial, part 1
- I need some helpHi...My name is Carlos Balanzario, im from mexico city...Im trying to apply this tutorial to my OpenBSD, actually i do every step that u mencioned at the tutorial, but when im trying to connect with my Windows client it doesnt wo
- Tags: networking, carlos.balanzario@..., IM, OpenBSD, PPTP, remote access
- Discussion threads 2006-11-13
- OpenBSD 4.0 released
- The 1st of November saw the release of OpenBSD 4.0 which includes many updates. New architectures supported include UltraSPARC III and the Zaurus SL-C3200. A host of new drivers add hardware support for many new devices--mainly network adaptors. A array of new functionality in included in version...
- Tags: UNIX, OPEN SOURCE, Operating systems, OpenBSD 4.0, V4.0, OpenBSD
- Blog posts 2006-11-11
- Remote Access: PPTP VPN with OpenBSD, part 2
- Proxy arp not workingHi, I followed the setup instruction to setup a PPTP VPN to an OpenBSD LAN gateway/firewall. Still, I could not make it work when assigning IP addresses from the same LAN subnet to the clients.To be more specific, the LA
- Tags: arp, LAN, networking, networking poptop openbsd arp, OpenBSD, oscar_ross@..., PPTP, remote access, subnet
- Discussion threads 2006-10-28
- Applying patches in OpenBSD
- Last week I looked out how we should keep ourselves informedof any new patches for OpenBSD, and how to find the correct patch files oncethey are released. This week, weÂ’ll get straight into the application of thesepatches.The full-source archives should be downloaded to /usr/srcdirectory and the contents extracted; having the...
- Tags: OpenBSD, patch management
- Blog posts 2006-07-10
- Keeping OpenBSD up to date
- As discussed last week, OpenBSD is an operating system withits focus firmly set on security. Unused services are disabled by default,continuous auditing of source code takes place, and any bugs discovered aregiven full disclosure.Most exploited vulnerabilities have actually been fixed; theproblem is that not all systems are kept up to...
- Tags: itÂ, OpenBSD, patch management, security
- Blog posts 2006-06-29
- Is OpenBSD security better than other operating systems?
- At the beginning of the year I looked at the installationof OpenBSD as well as configuration of firewall and VPNservices. OpenBSD is one of the most secure operating systems out there, theyproudly claim on the front page of their website “Only one remote hole in the default install, in more...
- Tags: OpenBSD, operating system, security, vulnerability
- Blog posts 2006-06-27
- Open BSD Founder Decries Entitlement Open Source Culture
- I thought the "free" concept was what ran the Linux world. I see from the statement made by Theo de Raadt, the founder and lead developer of OpenBSD that this isn't correct."The culture of entitlement is starting to damage the open source community." Read the story at http://news.com.com/OpenBSD+founder+makes+funding+plea/2100-7344_3-6053096.html?tag=nefd.top.Guess that is...
- Tags: OpenBSD, FTP, open source, entitlement mindset damaging linux, BFilmFan, linux, installer
- Discussion threads 2006-03-23
- OpenBSD Peer Product Review
- OpenBSD Peer Product Review DiscussionShare your OpenBSD experiences with TechRepublic Members here by replying below!
- Tags: TechRepublic's Peer Produ, OpenBSD, OpenBSD Peer Product Review, TechRepublic's Peer Product Review, off-topic, Product Review
- Discussion threads 2006-02-14
- Learn to install and configure a PPTP VPN connection with open source Poptop
- undefined reference to `ipe4_attach'I followed the steps required to remove GRE from the GENERIC kernel, but when I compile my version, I get the following erros:ip_ipsp.o(.data+0x48): undefined reference to `ipe4_attach'ip_ipsp.o(.data+0x4c): undefined reference to `ipe4_init'ip_ipsp.o(.data+0x50): undefined reference to `ipe4_zeroize'ip_ipsp.o(.data+0x54): undefined reference to `ipe4_input'Has anyone else recieved the same errors? If...
- Tags: flip-flop-flam, kernel, networking, open source, openbsd, poptop, pptp, undefined reference, vpn
- Discussion threads 2006-02-07
- Learn to install and configure a PPTP VPN connection with open source Poptop
- This tutorial, by Financial Services IT blogger Justin Fielding, will show you how to implement a VPN connection using the open source Poptop PPTP server solution for Linux. In this article, I'll cover the configuration of a VPN implementation using the Point-to-Point Tunnelling Protocol PPTP. This allows...
- Tags: OpenBSD, PPTP, VPNs, UNIX, Justin Fielding, Operating systems, Network security, open source, PopTop, Financial Service IT Newsletter, VPN, IP, Connection, Kernel, Networking, Software
- Technical articles 2006-01-26
- Remote Access: PPTP VPN with OpenBSD Tutorial, part 2
- In last week's tutorial installment on PPTP VPN, werecompiled the kernel. The next step is to create the additional tun devices andfinish installing and configuring Poptop.Let's get started: tun0 – tun3 exist by default, so createadditional devices with the following:# cd /dev# sh ./MAKEDEV tun?Where ? is the device...
- Tags: IP, IP address, OpenBSD, PopTop, PPTP, remote access
- Blog posts 2006-01-24
- Remote Access: PPTP VPN with OpenBSD, part 2
- In last week's tutorial installment on PPTP VPN, we recompiled the kernel. The next step is to create the additional tun devices and finish installing and configuring Poptop.Let's get started: tun0 – tun3 exist by default, so create additional devices with the following:# cd /dev# sh ./MAKEDEV tun?Where ? is...
- Tags: IP, IP address, OpenBSD, PopTop, PPTP, remote access
- Blog posts 2006-01-25
