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Jul
8
answered Spanning Tree Setup
Jul
7
answered How can I get the ip address of a website?
Jul
7
comment SSH server zero-day exploit - Suggestions to protect ourselves
Kerberized telnet is actually reasonably safe. The nice thing about kerberos is you can centrally revoke a key if you want to, unlike ssh where you have to visit each host and remove a key from each authorized_keys file.
Jul
7
comment SSH server zero-day exploit - Suggestions to protect ourselves
How real is this? A little googletrolling turned up seclists.org/fulldisclosure/2009/Jul/0028.html as the most original source of this rumor. Anyone have independent verification of this?
Jul
7
comment Virtual-domain mail server installation on Ubuntu 9.04
@womble: I only ask because you implied that you were changing OSes and that forced a change of MTAs while changing one doesn't necessarily mandate changing the other. I personally try to change only one big thing at a time. I'm not really a qmail fanboy -- for instance, recently I thought about switching to postfix so I could do outgoing mail via smtpauth to my ISP via a smtproute and didn't feel like eating patchsoup, but whenever I install a new OS, I usually just carry forward my old email config because it (kinda) works and I'm lazy.
Jul
7
answered Virtual-domain mail server installation on Ubuntu 9.04
Jul
6
comment SED Find&Replace with “OR”
and of course: find . -type f
Jul
6
comment Why is Linux more popular than BSD?
Let me just clarify the gpl "disadvantage" statement -- it is only that if I incorporate GPL code into my product I take on an added cost of keeping track of it to make sure I don't mix it with other parts of the code (and lose control of those), I have to package and publish those parts of the code, etc. This compared to BSD where I just dump it into my codebase and forget about it. I don't have any real opinion on which license is "better" for whatever ambiguous definition of "better" someone may want to flame on about.
Jul
6
comment Why is Linux more popular than BSD?
These observations are clearly 100% spot on, but they are specific to why users and admins chose linux vs bsd. I find it interesting that even in the embedded space, linux dominates. Tivo, wrt, maemo, gphone, pre, f5 -- all these companies had product managers that evaluated linux vs windriver vs bsd vs opensolaris. It is interesting to me that linux still comes out ahead even given GPL "disadvantage" (from the perspective of the company selling a product).
Jul
6
comment Why is Linux more popular than BSD?
Yes, absolutely there are many appliances based on BSD. The license is more favorable for that sort of application than the gpl. Easy examples include juniper routers and the trapeze wireless network controllers. In the embedded space, though, I do see lots and lots of linux based systems and I suspect that has to do with the RT kernel enhancements in linux. (see my original comment about fancy kernel enhancements in linux vs Xbsd)
Jul
6
answered Why is Linux more popular than BSD?
Jul
5
answered Routing protocols, distance vector vs link state
Jul
4
comment Exchange server replacement that runs on Linux
Does it work with outlook?
Jul
4
comment Choosing network topology for top performance
I would switch over to 3 links between each of the devices in the primary path and 1 link to the secondary path.
Jul
3
answered Cisco VPN Client for Windows
Jul
3
answered What are some SAS-70 Type II data centers in the Boston area?
Jul
3
comment Choosing network topology for top performance
If you're using spanning tree I believe all the traffic will follow one path through your network. You should to LACP between each of the switches, at the very least.
Jul
3
comment Choosing network topology for top performance
@gregc: How are you managing L2 redundancy? Are the clients on lots of different switches or are they split between the 2 switches the server is attached to? Are you using spanning tree?
Jul
3
comment Choosing network topology for top performance
I don't think in this case you'd ever be able to load balance across more than 2 links. You can't do LACP to 2 different remote switches, so you'd be doing 2 LACP groups and the server would only ever use one of those links at a time. I'd switch to a 3 and 1 and see if win2k3 allows you to bias to the 3 link LACP. Better performance in most situations and the system is still reliable if a single switch fails.
Jul
3
answered Choosing network topology for top performance