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2018年4月に和歌山のITコミュニティWackerで発表した資料です。

Transcript

1. ΢ΣϒαΠτΛ

   ΋ͬͱ଎͘ʂ
   8BDLFS
   
   ٶ಺ོߦ
   !NJZB
   

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2. w גࣜձࣾλϩεΧΠ
   w Ұൠࣾஂ๏ਓ͸͡Ί·ͨ͠ʂ
   w 8PSE1SFTTͷਓɻ81$-*ίϛολʔͳͲͳͲɻ
   w དྷिຊ԰͞Μ͠·͢ɻ(PPHMF$MPVE8PSE1SFTTͷղઆॻ
   Λߴڮจथ͞Μͱॻ͖·ͨ͠ʂ
   

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3. ΞδΣϯμ
   

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4. w ଎͍ͷ͸ਖ਼ٛ
   w ଎͍ͬͯͳʹʁ
   w ϒϥ΢β͕ϖʔδΛදࣔ͢Δ·ͰͷྲྀΕ
   w )551
   w 3FTPVSDF)JOUT
   w ΫϦςΟΧϧ$44
   w 8PSE1SFTTͰͷߴ଎Խ
   

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5. ଎͍ͷ͸ਖ਼ٛ
   

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6. IUUQTXXXUIJOLXJUIHPPHMFDPNNBSLFUJOHSFTPVSDFTEBUBNFBTVSFNFOU
   NPCJMFQBHFTQFFEOFXJOEVTUSZCFODINBSLT
   

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10. w ݸਓͷϒϩάʢIUUQTNJZBJPʣͰ͸ඵ͔Βඵʹॖ·ͬͨ݁Ռ΋17͕૿͑ͨʂ
    w ͜ΕʹऔΓ૊ΉաఔͷதͰ̓ͭ΄Ͳ8PSE1SFTTϓϥάΠϯΛ࡞Γ௚ͨ͠Γ৽نʹ࡞ͬͨΓ
    ͨ͠ɻ
    w ద༻ͨ͠΄΅͢΂ͯͷαΠτͰ্ͷΑ͏ʹ17͕૿Ճͨ͠ɻ
    

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11. ͦ΋ͦ΋଎͍ͬͯԿʁ
    

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12. ௕ڑ཭ϥϯφʔͱͯ͠ͷ଎͞ͱ

    ୹ڑ཭ϥϯφʔͱͯ͠ͷ଎͞͸ผ෺
    

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13. ͨ͘͞ΜͷτϥϑΟοΫʹରͯ͠

    ଎͘Ԡ౴͍ͤͨ͞
    w /HJOY΍"QBDIFɺ.Z42-ͷνϡʔχϯά
    w εέʔϧΞ΢τ΍εέʔϧΞοϓ
    w αʔόʔαΠυΩϟογϡ
    w ΦϒδΣΫτΩϟογϡ
    w ΞϓϦέʔγϣϯͷ࠷దԽ
    

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14. ମײ଎౓Λ଎͍ͨ͘͠
    w $44΍+4ɺը૾ͷαΠζͷ࠷దԽ
    w )551
    w 3FTPVSDF)JOU
    w ΫϥΠΞϯταΠυΩϟογϡ
    w ඇಉظ
    w ଞʹ΋ࢁ΄Ͳʂ
    

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15. ϒϥ΢β͕ϖʔδΛ

    දࣔ͢Δ·ͰͷྲྀΕ
    

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16. ໊લղܾ
    ઀ଓ
    αʔόʔαΠυͷΞϓϦέʔγϣϯ͕ൃՐ
    ϒϥ΢β͕ίϯςϯπΛμ΢ϯϩʔυ
    ϨϯμϦϯά
    ্ͷ͢΂ͯͷϙΠϯτͰߴ଎Խ͕Մೳ
    

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17. IUUQTXXXIUNMSPDLTDPNKBUVUPSJBMTJOUFSOBMTIPXCSPXTFSTXPSL
    

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18. UFMOFUͰ)551ͯ͠ΈΔͱ
    ۩ମతʹΠϝʔδ͠΍͍͔͢΋
    $ telnet example.com 80
    GET / HTTP/1.1
    Host: example.com
    

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19. )551
    

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20. )551 )551
    

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21. w )551Ͱ͸ϒϥ΢β͸֤ϦιʔεΛ࠷େͰ̒ͭʢʁʣ
    ·Ͱ͔͠ಉ࣌ʹμ΢ϯϩʔυ͠ͳ͍ɻ
    w ͦͷͨΊʹੲ͸$44εϓϥΠτͱ͔υϝΠϯγϟʔσΟ
    ϯάͱ͔͍Ζ͍Ζؤுͬͨʂ
    w )551Ͱ͸ɺͻͱͭͷ5$1઀ଓͰ·ͱΊͯμ΢ϯϩʔ
    υͰ͖Δɻ
    

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22. )5514FSWFS1VTI
    

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23. w ͋ͱ͔Β࢖༻͢Δ͜ͱ͕Θ͔ͬͯΔ$44΍+4ɺը૾ͳͲ
    Λϒϥ΢β͔ΒͷϦΫΤετΛ଴ͨͣʹ1VTIɻ
    

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24. 8PSE1SFTTϓϥάΠϯΛ࡞ͬͯΈͨ
    

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25. w ϒϥ΢βʹΩϟογϡ͕͋ͬͯ΋1VTIͯ͠͠·͏ͷͰɺͳΜ
    Ͱ΋͔ΜͰ΋1VTIͯ͠͠·͏ͷ͸ɺ͍·͍ͪͳ͜ͱ͕Θ͔ͬ
    ͨɻ8PSE1SFTTϓϥάΠϯͱͯ͠͸΋͏গ͠ݕ౼͕ඞཁɻ
    w ଚܟ͢Δ8PSE1SFTTͷίϛολʔͷҰਓɺ"BSPO+PSCJO͕
    ৯͍͍ͭͯ͘Εͨͷ͕خ͔ͬͨ͠ɻʢҧ
    

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26. 3FTPVSDF)JOUT
    

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27. w %/41SFGFUDI
    w 1SFDPOOFDU
    w 1SFGFUDI
    w 1SFSFOEFS
    IUUQTXDHJUIVCJPSFTPVSDFIJOUT
    

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28. href="//example.com/next-page.html">
    ͨͩ͠1SFSFOEFS͸ϖʔδʹ͖͔ͭͭ͠࢖͑ͳ͍ʜɻ
    
    3FTPVSDF)JOUT͸ɺMJOLͰຒΊࠐΉ͚ͩͳͷͰ
    ׂͱ؆୯ʹಋೖՄೳ
    

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29. 8PSE1SFTTͰ͸
    ҎԼͷΑ͏ͳײ͡Ͱ࣮૷Մೳ
    function makewp_example_resource_hints( $hints, $relation_type ) {
    if ( 'dns-prefetch' === $relation_type ) {
    $hints[] = '//make.wordpress.org';
    } else if ( 'prerender' === $relation_type ) {
    $hints[] = 'https://make.wordpress.org/great-again';
    }
    return $hints;
    }
    add_filter( 'wp_resource_hints', 'makewp_example_resource_hints', 10, 2 );
    

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30. ΫϦςΟΧϧ$44
    

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31. sleep( 10 ); // すげー重たいCSS
    header( 'Content-Type: text/css; charset=UTF-8' );
    ?>
    h1
    {
    color: #ff0000;
    }
    ͜ΕΛϒϥ΢βͰಡΈࠐΜͩΒͲ͏ͳΔ͔ࢼͯ͠ΈΑ͏ʂ
    

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32. ϑΝʔετϏϡʔͰ͸දࣔ͞Εͯͳ͍ͱ͜Ζ͕͍ͬͺ͍͋Δɻ
    ϝσΟΞΫΤϦʔ౳Λۦ࢖ͯ͠ϑΝʔετϏϡʔͰ

    ෆཁͳ$44΍+4ʹΑΔϨϯμϦϯάϒϩοΫΛ๷͙ɻ
    

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33. IUUQTEFWFMPQFSTHPPHMFDPNXFCGVOEBNFOUBMTQFSGPSNBODFDSJUJDBM
    SFOEFSJOHQBUISFOEFSCMPDLJOHDTT IMKB
    

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34. 8PSE1SFTTͷߴ଎Խ
    

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35. 8PSE1SFTT͸ॏ͍ʁ
    w 8PSE1SFTT͕ॏ͍ͱ͍͏ΑΓ΋ɺ؆୯ʹॏ͘Ͱ͖Δͱ͍
    ͏ͷ͕ਖ਼͍͠ɻ
    

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36. ॏ͘ͳΓ͕ͪͳϙΠϯτ
    

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37. ϓϥάΠϯଟ͗͢
    w ϓϥάΠϯͷઃఆ߲໨͸ϩʔυ࣌ʹ͢΂ͯ·ͱΊͯಡΈࠐ
    ·ΕΔɻϓϥάΠϯΛΞϯΠϯετʔϧͨ͠ޙ΋ͦΕΒ͸
    ࢒ΔͷͰຊ൪؀ڥͰϓϥάΠϯΛ͋Ε͜Εࢼ͚ͩ͢Ͱ΋ύ
    ϑΥʔϚϯε௿ԼͷݪҼʹͳΓ͏Δɻ
    w γϣʔτίʔυͳͲͷϓϥάΠϯ͸ɺͦͷγϣʔτίʔυ
    Λ࢖༻͍ͯ͠ͳ͍ϖʔδͰ΋$44ΛಡΈࠐΉɻͦͷγϣʔ
    τίʔυ΄Μͱʹ࢖ͬͯΔʁ
    

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38. ΩϟογϡܥϓϥάΠϯΛ
    ৴༻͗͢͠
    w ΩϟογϡܥϓϥάΠϯ͸௒ॏ͍αΠτΛͪΐͬͱ͸Ϛγ
    ʹͯ͘͠ΕΔͬͯఔ౓ͷظ଴஋Ͱɻ
    w ڞ༗αʔόʔͰ͸ٯޮՌʹͳΔ͜ͱ͕ଟ͍ɻʢԤถͷڞ༗
    αʔόʔͰ͸ར༻ېࢭʹͳ͍ͬͯΔ͜ͱ͕΄ͱΜͲɻʣ
    w ࢖͍͜ͳͨ͢Ίʹ͸ߴ౓ͳ஌͕ࣝඞཁɻ
    

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39. ॏ͘ͳΔϓϥάΠϯͷύλʔϯ
    w ؔ࿈هࣄܥ
    w ϦϯΫνΣοΫͯ͘͠ΕΔܥ
    ͋ͱ+FU1BDLʜ׼
    

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40. ଎͘͢ΔͨΊͷϙΠϯτ
    

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41. w 1)18PSE1SFTT͸1)1Ҏ্Λਪ঑ʂ
    w /HJOYγϯάϧϓϩηεɺΠϕϯτۦಈɺඇಉظʂ
    w ը૾ͷ࠷దԽKQFHPQUJN QOHRVBOUͳͲͳͲɻ
    w +4ɺ$44ͷ࠷దԽɻಡΈࠐΈλΠϛϯάͷมߋɻ
    ҎԼͷ߲໨͚ͩͰ΋͔ͳΓҧ͏ʂ
    1)1ͷར༻཰͕௿͍ͷͰڞ༗αʔόʔͷਓ͸͍·͙͢ίϯτϩʔϧύωϧ΁ʂ
    

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42. IUUQTNJZBJPPQUJNJ[FJNBHFTGPSXPSEQSFTTXJUIUIF
    KQFHPQUJN
    8PSE1SFTTͰͷKQFHPQUJNʹΑΔ
    ը૾ͷ࠷దԽͷ࣮૷ྫ
    ίΞίϛολʔʹ
    ๙ΊΒΕͨʂ
    

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43. 8PSE1SFTTͰ$44ͷಡΈࠐΈλΠϛϯάΛมߋ͢Δ+4ͷྫ
    ͻͱͭͻͱͭ஍ಓʹؤுͬͨΒɺ

    ͔ͨ͠ʹτοϓϖʔδͰ.#Ҏ্ͷαΠζ࡟ݮʹ੒ޭͨ͠ɻ
    ʢASFMTVCSFTPVSDFAͷ΄͏͕͍͍͔΋ʣ
    

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44. ͦͷଞ
    w 8PSE1SFTTͷ৽ΤσΟλʔɺ(VUFOCFSH͕ಋೖ͞ΕΔͱαʔυ
    ύʔςΟͷϓϥάΠϯʹΑͬͯେྔͷ$44΍+4͕ϩʔυ͞ΕΔ
    Մೳੑ͕͋ΔɻϑϩϯτΤϯυʹؔ͢ΔεΩϧͷཁٻਫ४্͕
    ͕ͬͯ͠·͏͔΋ɻ
    w 8PSE1SFTTͷK2VFSZͱKRVFSZNJHSBUF͸IFBEͰಡΈ
    ࠐ·ΕͯϨϯμϦϯάΛϒϩοΫ͢ΔͷͰཁ஫ҙɻ
    

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45. 5IBOLT
    ͓࢓ࣄͷ૬ஊ͸ҎԼ·Ͱɻ
    IUUQTUBSPTLZDPKQ
    IUUQTMJDUKQ
    

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