有時候FreeBSD會出現下面這種訊息,通常我在做port mirror最常發生,看了就很煩。
arp: 210.71.22.222 moved from 00:09:97:be:4a:0e to 00:09:97:be:4a:0f on rl0
所以下了sysctl給它關掉吧:p
sysctl -w net.link.ether.inet.log_arp_wrong_iface=0
Yuan-Chung Hsiao's technical note and murmuring
Feb 24th, 2005 by Yuan-Chung Hsiao
Feb 10th, 2005 by Yuan-Chung Hsiao
AUTHOR
Yuan-Chung Hsiao (ychsiao AT ychsiao dot org)
LICENSE
GNU Free Documentation License
Version 1.2, November 2002
http://www.gnu.org/licenses/fdl.html
About Radius
Radius( Remote Access Dial In User Service) Protocol主要用來提供Authentication機制,用來辨認使用者的身份與密碼,確認通過之後,經由Authorization授權使用者登入網域使用相關資源,並可提供Accounting機制,保存使用者的網路使用記錄,以提供系統服務業者完整認證收費機制的一個基礎。
請參考RFC 2058(January 1997)、RFC 2138(April 1997)
Tags: Document, FreeBSD, OpenSource, unix
Feb 2nd, 2005 by Yuan-Chung Hsiao
Tags: Akiko Suwanai, Classical, Life
Dec 24th, 2004 by Yuan-Chung Hsiao
唔,我想了很久終於拿來架了
測試的環境大概是
P4 2.6G + 1280Mb RAM + Intel 1000MT *3
NAT client大概有2000點
throughput大概>50Mbps(為什麼大於50而已…因為有一些被鎖了:p)
剛開始沒鎖會把100Mbps吃滿,而且uplink的Layer4 Switch只有100UTP -_-”
架構大概是
四棟宿舍edge->1G*4->Core Router->1G*1->NAT BSD->200Mbps->L4 Switch->WAN
效率上不錯,雖然受限於PCI 32 bits,但比廢材Foundry做NAT好太多了。
Tags: unix
Aug 1st, 2003 by Yuan-Chung Hsiao
手上有的版本分別是
Karajan指揮Berliner Philharmoniker與(CD 1/3, DVD 1~9) Simon Rattle指揮Wiener Philharmoniker(CD 1~9)
聽起來感覺還是有差啊!!
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Tags: Classical