Postfix(JP) MLのすごし方

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weitseさん来日時のJPAGの店(2003-11-3)

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Postfix(JP) MLのすごし方

  1. 1. Postfix(JP) ML のすごし方  ARAKI Yasuhiro Debian Project ar@debian.org
  2. 2. MLとの楽しい付き合い方  よろしくない質問例 – 日本語がオカシイ – 恨み節 – ~とおなじように – 以前は~ – 仕事の丸投げ – 環境の説明をしない、ログを添付しない  よろしくない回答をするくらいなら、他の人に任せましょう – 説教とか、茶々とか でもなーーー
  3. 3. こまったベンダー  I wish vendors would stop shipping obsolete software. Postfix 2.1 is almost finished, and they still ship Postfix 1.1.  Any particular distribution, like RedHat or something that I may have on a ready-to- install CD? I would not spend a day downloading bits and pieces.  If a reboot fixes a problem then it is not a Postfix problem, but rather a broken operating system.
  4. 4. SPAM対策はやりすぎるな  Spammers do not destroy the infrastructure. It's good-willing folks who destroy it with lame countermeasures.  Sorry, good-willing folks with lame counter-measures are destroying the infrastructure faster. Postfix must be kept free from such crud.  Don't ask me to have the Postfix create multiple queue files per input transaction, one per recipient class. It's either not robust or it' incredibly expensive.
  5. 5. 計測しようよ  Your best option is to measure the performance (for example, with the smtp- source and smtp-sink utilities that ship with Postfix).  With 130.000 queue files, one level of hashing is probably sufficient. The exact number depends on your hardware and on your file system implementation.  Too many levels will actually slow Postfix down.
  6. 6. 限界を知りましょう  On a faster LAN, sending a 1-bit query takes as long as sending a 1000 bit query.  Faster LANs don't make bits go faster. They make bits travel more closely together, so that more bits arrive per unit time.  Still, the bits don't go faster than the speed of light.
  7. 7. 打つ前に考えましょう  Next time, please engage the brain before hitting the keyboard.
  8. 8. Happy Postfixing!!
  9. 9. Postfix-users ML can split? Expert, beginner, … とすると質問が分散して、下 手すると bounce する
  10. 10. Postfix users group JP( 仮称 )  「仮称」はとれるのか? – とくになくてもいいんじゃないか – Ad-hoc
  11. 11. Undocumented  すべての可能性について考えるのは難しい
  12. 12. Postfix を入れたときの問題点  ふつうに使うぶんには問題ない?  他と組み合わせたときの方法があまり知られて いない – Amavis とか、、、、 – そういうのはMLに投げましょう。

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