Archive for the ‘Networking’ Category

June 20, 2010 1

iRail slashdot effect

By Tuinslak in Linux, Networking, Software, iRail, www

Only because stats are pretty awesome. The effects of my media attention a few days ago. I’ll give some more info than what can be seen here. And pretty happy I set up my nginx caching up a few weeks ago. MRTG traffic stats on vm1, my nginx caching server, of the first 2 days [...]

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May 23, 2010 0

nginx reverse proxy with caching

By Tuinslak in Linux, Networking, Software, www

Playing around and searching the web I enabled some decent caching now. Here are some stats: image+html and php. Note that the php on apache (recompiled each request, about 1.5-2sec between every request) versus the cached output has a huge difference. Difference between images and static text files aren’t that huge. Also note that nginx [...]

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May 22, 2010 1

nginx reverse proxy IP

By Tuinslak in Linux, Networking, Software, www

The issue with the wrong IP address being shown when using nginx as reverse proxy can easily be solved with mod_rpaf. cache.blog.tuinslak.org 85.234.196.237 – – [22/May/2010:16:33:46 +0200] “GET /2010/05/nginx-reverse-proxy/ HTTP/1.0″ 200 6184 “-” “Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_3; en-US) AppleWebKit/533.4 (KHTML, like Gecko) Chrome/5.0.375.53 Safari/533.4″ 1766 6503 vs cache.blog.tuinslak.org 85.12.6.171 – – [...]

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May 22, 2010 1

nginx reverse proxy

By Tuinslak in Linux, Networking, Software, www

I’ve been playing around a bit with nginx and its reverse proxy module. The “real” website is accessible here, whereas the cached version is here. I’m deliberately making a difference between cache.* and live.* as blog.tuinslak.* might move to the cached version lateron. The question, is it useful to reverse proxy this blog? No, probably [...]

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March 8, 2010 0

OpenVPN packet drops

By Tuinslak in Errors, Linux, Networking, Software

I recently started to notice following error messages on my openVPN server. ovpn-server[6306]: vpn.rootspirit.com/85.234.x.y:62068 MULTI: packet dropped due to output saturation (multi_process_incoming_tun) This basically means that the TUN or TAP interface is making more packets than the real (TCP) interface can handle. As I need to run OpenVPN using the TCP protocol (instead of the [...]

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March 6, 2010 0

Barcamp WiFi: the statistics – #BCA2010

By Tuinslak in Misc, Networking

A total of 87 IPs have been handed out (so 87 different MAC addresses) A total of 70 users used the (transparent) Squid proxy, so a few never logged in There was a total of 1.3Gb of HTTP traffic (Saturday only) There was a total of 720.91Mb upload and 2.11Gb download traffic (including Friday evening) [...]

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March 5, 2010 0

Barcamp Antwerp – #BCA2010

By Tuinslak in Misc, Networking

For those visiting BarCamp Antwerp tomorrow, make sure to connect to the open Userplus.org “barcamp” WiFi SSID. Any feedback or comments about it can be mailed (yeri @ rootspirit . com) or left below.

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February 27, 2010 0

Linux gateway/router + unable to access certain (HTTPS) sites

By Tuinslak in Errors, Linux, Networking

I’ve had an issue for a while, being unable to access certain websites such as https://fon.com, but also certain parts of the Apple, Fortis and Microsoft site, while other (https) websites worked fine. Running Wireshark I found that only about 5ish packets got transferred, and all other data to that website abruptly stopped. I’m using [...]

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February 16, 2010 0

Public DNS server

By Tuinslak in Networking

I have been running a public DNS server for private purpose (never liked my ISP’s DNS servers, and the root servers were usually located too far away (at least those with easy to remember IPs). Anyway, been testing it since this summer, and so far it’s been working great. the DNS server running on a [...]

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February 14, 2010 2

OpenVPN & Windows 7

By Tuinslak in Errors, Networking, Software, Windows

There’s a great GUI out for OpenVPN & Windows, located here. However, this GUI includes an old OpenVPN, that is no longer compatible with Windows 7 and Windows Vista. The TUN/TAP driver will be blocked due to compatibility issues, and when trying to connect to a VPN, you’ll get an error along the lines of: [...]

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