Wednesday, July 25, 2007

PCCW Linksys Router

今日去一個新客人度,幫佢起一部Firewall同駁番好d線。
過程大致順利,不過boot起部firewall之後問題就來了~

客人用PCCW 寬頻,隨計劃安裝一個modem及一部Linksys WRT54G Router.
Firewall係普通Dell Desktop PC,無裝OS,用Gentoo Live CD boot 入console然後開ssh比意大利果邊同事做Setup.
話說起好之後,叫果邊試用SSH (Port 22) 入,佢話密碼錯,奇怪。自己local login,無問題播~
睇log又見唔倒佢login,咁佢究竟去左邊?! remote番自己公司試ssh入黎,同一個問題。會唔會port mapping 錯左?但係lan入面又無其他ssh server。熄左部Firewall,再試ssh,connect到! 重奇怪!試完一輪就發覺應該係隻Linksys Router 開左ssh port,於是打比PCCW問。PCCW 的 cs 依慣例話setting"無錯,無問題" ,咁我就話總之port mapping做唔倒,你搵Engineer上黎睇睇吧~


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