Network

Wireless Internet: BlackBerry Curve as Bluetooth Modem for OS-X Mac • Perishable Press

http://perishablepress.com/press/2007/06/12/blackberry-curve-as-bluetooth-modem-for-mac/ how to use your mobile phone as a bluetooth modem for max os x and connect to AT&T; 3G network

Knowledge Base - How to install VMXNET network adapter and driver for VM’s in ESX Server

http://networkadminkb.com/kb/Knowledge%20Base/VMWare/How%20to%20install%20VMXNET%20network%20adapter%20and%20driver%20for%20VM%92s%20in%20ESX%20Server.aspx by default vmware installs “pcnet32” network card which is a software emulation of 100MB card; most ppl switch

TCP Tuning Guide [Office of Science, DOE, US GOV]

http://fasterdata.es.net/TCP-tuning/ Excellent site provides both theoretical background and practical recommendation for the situation when you need to push limits of TCP links using regular OS and commodity hardware. Especially useful if you need to do it via long-haul fast TCP link, i.e. the situation when you normally use specialized networking hardware (read: cisco)

Bug 484667 – Dropping packets in bnx2 since 1.7.9 bnx2 version

https://bugzilla.redhat.com/show_bug.cgi?id=484667 issue with dropped packets on newer broadcomm ethernet cards, found in dell 1950III servers

Linux Software Router : Data Plane Optimization and Performance ...

http://www.google.com/url?sa=t&source=web&ct=res&cd=2&url=http%3A%2F%2Fwww.academypublisher.com%2Fjnw%2Fvol02%2Fno03%2Fjnw02030617.pdf&ei=-4zzSZ38FpywtAP0sLDPCg&rct=j&q=Linux+sofware+router%3A+data+plane+optimizations&usg=AFQjCNE5OzutnNt9SWgOaMcZydC5jLXTwg in-depth linux routing performance evaluation, including code profiling, execution path analysis, etc

Linux as IP Router [vaytta marketing paper, benchmarks are at the end]

http://www.google.com/url?sa=t&source=web&ct=res&cd=17&url=http%3A%2F%2Ffreedomhec.pbwiki.com%2Ff%2Flinux_ip_routers.pdf&ei=yXDzSdjSD4yYtAPG_cXPCg&rct=j&q=linux+routing+performance&usg=AFQjCNGNHX6jWJ7Ybrg8Jod24MMenJYt0g Paper from vayatta with some benchmarks that shows raw ip forwarding performance with various packet sizes and % of packet losses. Basically 2.8 Intel celeron + 1G broadcom (tg3) cards can deliver ~150Mbps on 64b packets limited by CPU

Gentoo Wiki Archives - HOWTO_Setup_IP_failover_with_UCARP

http://www.gentoo-wiki.info/HOWTO_Setup_IP_failover_with_UCARP examples for config scripts for ucarp daemon. ucap is a alternative for VRRP, alows 2 devices to have shared IP address. used for setup redundant routers, load balancers

An Illustrated Guide to the Kaminsky DNS Vulnerability

http://www.unixwiz.net/techtips/iguide-kaminsky-dns-vuln.html exellent explanation for the much-hyped Dan Kaminsky DNS vuln. This is for people for whom word “DNS” sounds like it’s in elvish

Intel IXP425 | Timesys Embedded Linux [product page]

http://www.timesys.com/products/processors/intel/intel-ixp425 page lists some details about intel ixp4xx combo-cpu’s and there are some useful notes as to what kernel config options should be enabled. Timesys uses 2.6.16.10

Not a Guessing Game -- Paul Vixie [from ISC/Bind] on recenet DNS hole

http://www.circleid.com/posts/87143_dns_not_a_guessing_game/ do a ‘dig TXT porttest.dns-oarc.net’ . || w.out disclosing details Pau confirms that the hole exists, and that !IMPORTANT! NAT/PAT effectively netrualize UDP port randomization fix