{"id":38840,"date":"2019-10-31T22:26:17","date_gmt":"2019-10-31T19:26:17","guid":{"rendered":"https:\/\/prohoster.info\/blog\/svoj-dynamic-dns-s-pomoshhyu-cloudflare\/"},"modified":"2019-10-31T22:26:17","modified_gmt":"2019-10-31T19:26:17","slug":"svoj-dynamic-dns-s-pomoshhyu-cloudflare","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/administrirovanie\/svoj-dynamic-dns-s-pomoshhyu-cloudflare","title":{"rendered":"Saj\u00e1t dinamikus DNS a CloudFlare seg\u00edts\u00e9g\u00e9vel","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Bevezet\u0151<\/h3>\n

\n\"Saj\u00e1t Otthoni szem\u00e9lyes sz\u00fcks\u00e9gletekhez fel\u00e1ll\u00edtottam a VSphere-t, amin virtu\u00e1lis routert \u00e9s Ubuntu szervert futtatok m\u00e9diakiszolg\u00e1l\u00f3k\u00e9nt, tov\u00e1bb\u00e1 sokf\u00e9le \u00e9rdekes dolgot, \u00e9s ennek a szervernek el\u00e9rhet\u0151nek kell lennie az interneten. De a probl\u00e9ma az, hogy a szolg\u00e1ltat\u00f3m p\u00e9nz\u00e9rt ad statikus IP-c\u00edmet, amit mindig hasznosabb c\u00e9lra is fel lehetne haszn\u00e1lni. Ez\u00e9rt a ddclient + cloudflare kombin\u00e1ci\u00f3t haszn\u00e1ltam. <\/p>\n

Minden j\u00f3l ment, m\u00edg a ddclient meg nem \u00e1llt. Egy kicsit bogar\u00e1szva r\u00e1j\u00f6ttem, hogy itt az ideje a gyors megold\u00e1soknak, mivel t\u00fal sok id\u0151t em\u00e9sztett fel a probl\u00e9ma keres\u00e9se. V\u00e9g\u00fcl mindez egy egyszer\u0171 d\u00e9monba \u00f6ml\u00f6tt, ami csak m\u0171k\u00f6dik, \u00e9s nekem nem is kell t\u00f6bb.
\nAki \u00e9rdekli - \u00fcdv\u00f6z\u00f6lj\u00fck a folytat\u00e1sban.
\n<\/a><\/noindex><\/p>\n

Haszn\u00e1lt eszk\u00f6z\u00f6k \u00e9s hogyan m\u0171k\u00f6dik \"ez\"<\/h3>\n

\nTeh\u00e1t el\u0151sz\u00f6r is, megtudtam a cloudflare weboldal\u00e1n, amit tudni \u00e9rdemes a API<\/a><\/noindex>. \u00c9s m\u00e1r elkezdtem megval\u00f3s\u00edtani mindezt Pythonban (miut\u00e1n megismertem a Python-t, egyre ink\u00e1bb alkalmazom egyszer\u0171 feladatokhoz vagy amikor gyorsan protot\u00edpust kell k\u00e9sz\u00edtenem), amikor is r\u00e1akadtam egy szinte k\u00e9sz megold\u00e1sra.
\n\u00d6sszess\u00e9g\u00e9ben a python-cloudflare<\/a><\/noindex>.<\/p>\n

wrapper alapj\u00e1n elk\u00e9sz\u00edtettem egy DNS friss\u00edt\u0151 p\u00e9ld\u00e1t, amelyhez hozz\u00e1adtam a konfigur\u00e1ci\u00f3s f\u00e1jl haszn\u00e1lat\u00e1t \u00e9s a lehet\u0151s\u00e9get, hogy t\u00f6bb A rekordot friss\u00edtsek egy z\u00f3n\u00e1n bel\u00fcl \u00e9s term\u00e9szetesen korl\u00e1tlan sz\u00e1m\u00fa z\u00f3n\u00e1t kezelhessen.<\/p>\n

A logika a k\u00f6vetkez\u0151:<\/p>\n

    \n
  1. A szkript a konfigur\u00e1ci\u00f3s f\u00e1jlb\u00f3l megkapja a z\u00f3n\u00e1k list\u00e1j\u00e1t, \u00e9s ciklusban v\u00e9gigmegy rajtuk<\/li>\n
  2. Minden z\u00f3n\u00e1ban a szkript ciklusban \u00e1tn\u00e9zi mindegyik A vagy AAAA t\u00edpus\u00fa DNS rekordot, \u00e9s \u00f6sszehasonl\u00edtja a nyilv\u00e1nos IP c\u00edmet a rekorddal<\/li>\n
  3. Ha az IP c\u00edme elt\u00e9r, m\u00f3dos\u00edtja, ha nem, akkor kihagyja a ciklus iter\u00e1ci\u00f3j\u00e1t, \u00e9s a k\u00f6vetkez\u0151re l\u00e9p <\/li>\n
  4. Alszik az adott konfigur\u00e1ci\u00f3s f\u00e1jlban megadott ideig<\/li>\n<\/ol>\n

    <\/p>\n

    Telep\u00edt\u00e9s \u00e9s be\u00e1ll\u00edt\u00e1s<\/h3>\n

    \nVal\u00f3sz\u00edn\u0171leg k\u00e9sz\u00edthettem volna .deb csomagot is, de nem \u00e9rtek hozz\u00e1, \u00e9s am\u00fagy sem olyan bonyolult az eg\u00e9sz.
    \nA folyamatot r\u00e9szletesen le\u00edrtam a README.md f\u00e1jlban a     reptit\u00f3rium oldal\u00e1n<\/a><\/noindex>.<\/p>\n

    De minden esetre le\u00edrom oroszul \u00e1ltal\u00e1nos szavakkal:<\/p>\n

      \n
    1. Gy\u0151z\u0151dj\u00f6n meg r\u00f3la, hogy telep\u00edtve van a python3 \u00e9s a python3-pip, ha nem - telep\u00edtse (Windows alatt a python3-pip a Python-nal egy\u00fctt telep\u00fcl)<\/li>\n
    2. Kl\u00f3nozza vagy t\u00f6ltse le a repozit\u00f3riumot<\/li>\n
    3. Telep\u00edtse a sz\u00fcks\u00e9ges f\u00fcgg\u0151s\u00e9geket.\n
      python3 -m pip install -r requirements.txt<\/code><\/pre>\n
      \n<\/li>\n
    4. Futtassa a telep\u00edt\u0151 szkriptet
      \nLinux rendszerre:<\/p>\n
      chmod +x install.sh\nsudo .\/install.sh<\/code><\/pre>\n
      \nWindowsra: windows_install.bat\n<\/li>\n
    5. Szerkessze meg a konfigur\u00e1ci\u00f3s f\u00e1jlt
      \nLinux rendszerre:<\/p>\n
      sudoedit \/etc\/zen-cf-ddns.conf<\/code><\/pre>\n
      \nWindows rendszerre:<\/p>\n
      Nyissa meg a zen-cf-ddns.conf f\u00e1jlt abban a mapp\u00e1ban, ahova a szkriptet telep\u00edtette.<\/p>\n
      Ez egy szok\u00e1sos JSON f\u00e1jl, a be\u00e1ll\u00edt\u00e1sok nem bonyolultak \u2013 kifejezetten arra \u00edrtam p\u00e9ld\u00e1t, hogy k\u00e9t elt\u00e9r\u0151 z\u00f3n\u00e1t mutassak be benne.\n<\/li>\n<\/ol>\n
      <\/p>\n
      Mi rejlik a telep\u00edt\u0151k m\u00f6g\u00f6tt?<\/h4>\n
      \ninstall.sh Linuxhoz:<\/p>\n
        \n
      1. L\u00e9trehoz egy felhaszn\u00e1l\u00f3t a d\u00e9mon futtat\u00e1s\u00e1hoz, an\u00e9lk\u00fcl, hogy l\u00e9trehozna otthoni k\u00f6nyvt\u00e1rat vagy lehet\u0151s\u00e9get logol\u00e1sra.\n
        sudo useradd -r -s \/bin\/false zen-cf-ddns<\/code><\/pre>\n
        \n<\/li>\n
      2. F\u00e1jlt hoz l\u00e9tre a napl\u00f3 \u00edr\u00e1s\u00e1hoz a \/var\/log\/ k\u00f6nyvt\u00e1rban.<\/li>\n
      3. A napl\u00f3f\u00e1jl tulajdonos\u00e1v\u00e1 a nemr\u00e9g l\u00e9trehozott felhaszn\u00e1l\u00f3t tessz\u00fck.<\/li>\n
      4. A f\u00e1jlokat a megfelel\u0151 hely\u00fckre m\u00e1solja (konfig a \/etc-be, v\u00e9grehajthat\u00f3 f\u00e1jl a \/usr\/bin-be, szolg\u00e1ltat\u00e1s f\u00e1jl a \/lib\/systemd\/system-be)<\/li>\n
      5. A szolg\u00e1ltat\u00e1st aktiv\u00e1lja.<\/li>\n<\/ol>\n
        \nwindows_install.bat Windowshoz:<\/p>\n
          \n
        1. M\u00e1solja a v\u00e9grehajthat\u00f3 f\u00e1jlt \u00e9s a konfigur\u00e1ci\u00f3s f\u00e1jlt a felhaszn\u00e1l\u00f3 \u00e1ltal megadott mapp\u00e1ba.<\/li>\n
        2. Feladatot hoz l\u00e9tre a feladat\u00fctemez\u0151ben, hogy a szkriptet a rendszer ind\u00edt\u00e1sakor futtassa.
          \nschtasks \/create \/tn \"CloudFlare Update IP\" \/tr \"%newLocation%\" \/sc onstart<\/code>\n<\/li>\n<\/ol>\n
          \nA konfigur\u00e1ci\u00f3 m\u00f3dos\u00edt\u00e1sa ut\u00e1n a szkriptet \u00fajra kell ind\u00edtani, Linuxon ez egyszer\u0171 \u00e9s megszokott:<\/p>\n
          sudo service zen-cf-ddns start\nsudo service zen-cf-ddns stop\nsudo service zen-cf-ddns restart\nsudo service zen-cf-ddns status\n<\/code><\/pre>\n
          \nWindows eset\u00e9n le kell \u00e1ll\u00edtani a pythonw folyamatot, \u00e9s \u00fajra kell ind\u00edtani a szkriptet (nagyon lusta vagyok, hogy Windows-ra szerver szolg\u00e1ltat\u00e1st \u00edrjak C#-ban):<\/p>\n
          taskkill \/im pythonw.exe<\/code><\/pre>\n
          \nEzzel a telep\u00edt\u00e9s \u00e9s be\u00e1ll\u00edt\u00e1s v\u00e9get \u00e9rt, haszn\u00e1lj\u00e1tok eg\u00e9szs\u00e9ggel.<\/p>\n
          Azoknak, akik szeretn\u00e9nek megn\u00e9zni egy nem t\u00fal sz\u00e9p Python k\u00f3dot, itt van. GitHub adatt\u00e1rhoz<\/a><\/noindex>.<\/p>\n
          MIT licenc, teh\u00e1t csin\u00e1lj vele, amit csak akarsz.<\/p>\n
          P.S.: \u00c9rtem, hogy kicsit \u00fcgyetlen\u00fcl siker\u00fclt, de a feladat\u00e1t remek\u00fcl v\u00e9gzi.<\/p>\n
          UPD: 2019.10.11 17:37
          \nTal\u00e1ltam m\u00e9g egy probl\u00e9m\u00e1t, \u00e9s ha b\u00e1rki meg tudja mondani, hogyan lehetne megoldani \u2013 nagyon h\u00e1l\u00e1s lenn\u00e9k.
          \nA probl\u00e9ma az, hogy ha a f\u00fcgg\u0151s\u00e9geket a sudo python -m pip install -r … parancs haszn\u00e1lata n\u00e9lk\u00fcl telep\u00edtj\u00fck, akkor a szolg\u00e1ltat\u00e1s felhaszn\u00e1l\u00f3ja sz\u00e1m\u00e1ra a modulok nem lesznek l\u00e1that\u00f3ak, \u00e9s nem szeretn\u00e9m arra k\u00e9nyszer\u00edteni a felhaszn\u00e1l\u00f3kat, hogy sudo alatt telep\u00edtsenek modulokat, r\u00e1ad\u00e1sul ez helytelen is.
          \nHogyan lehetne sz\u00e9pen csin\u00e1lni?
          \nUPD: 2019.10.11 19:16 A probl\u00e9ma a venv haszn\u00e1lat\u00e1val megold\u00f3dott.
          \nT\u00f6bb v\u00e1ltoz\u00e1s sz\u00fcletett. Hamarosan j\u00f6n egy \u00faj kiad\u00e1s.
          \n
          Forr\u00e1s:           habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"
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[…]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":29132,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-38840","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Saj\u00e1t dinamikus DNS a CloudFlare seg\u00edts\u00e9g\u00e9vel | ProHoster","description":"El\u0151sz\u00f3 Szem\u00e9lyes haszn\u00e1latra otthon 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