{"id":102274,"date":"2021-11-12T21:36:38","date_gmt":"2021-11-12T19:36:38","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-nebula-1-5-sistemy-dlya-sozdaniya-overlejnyh-p2p-setej"},"modified":"2021-11-12T21:36:38","modified_gmt":"2021-11-12T19:36:38","slug":"vypusk-nebula-1-5-sistemy-dlya-sozdaniya-overlejnyh-p2p-setej","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pl\/blog\/news\/vypusk-nebula-1-5-sistemy-dlya-sozdaniya-overlejnyh-p2p-setej","title":{"rendered":"Wydanie Nebula 1.5, systemu do tworzenia nak\u0142adkowych sieci P2P","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Wydano wydanie projektu Nebula 1.5, oferuj\u0105cego narz\u0119dzia do budowy zabezpieczonych sieci overlay. Sie\u0107 mo\u017ce \u0142\u0105czy\u0107 od kilku do dziesi\u0105tek tysi\u0119cy geograficznie rozproszonych host\u00f3w, umieszczonych u r\u00f3\u017cnych dostawc\u00f3w, tworz\u0105c oddzieln\u0105, izolowan\u0105 sie\u0107 na tle globalnej sieci. Projekt zosta\u0142 napisany w j\u0119zyku Go i jest udost\u0119pniany na licencji MIT. Powsta\u0142 w firmie Slack, rozwijaj\u0105cej ten sam nazwany komunikator dla firm. Obs\u0142ugiwane s\u0105 systemy Linux, FreeBSD, macOS, Windows, iOS i Android.    <\/p>\n<p>W\u0119z\u0142y w sieci Nebula komunikuj\u0105 si\u0119 ze sob\u0105 bezpo\u015brednio w trybie P2P \u2014 w miar\u0119 potrzeby przesy\u0142ania danych mi\u0119dzy w\u0119z\u0142ami dynamicznie tworzone s\u0105 bezpo\u015brednie <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/pl\/vpn\/\"   title=\"VPN\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"186\">VPN<\/a>-po\u0142\u0105czenia. To\u017csamo\u015b\u0107 ka\u017cdego hosta w sieci potwierdzana jest certyfikatem cyfrowym, a po\u0142\u0105czenie z sieci\u0105 wymaga przej\u015bcia autoryzacji \u2014 ka\u017cdy u\u017cytkownik otrzymuje certyfikat, kt\u00f3ry potwierdza adres IP w sieci Nebula, nazw\u0119 oraz przynale\u017cno\u015b\u0107 do grup host\u00f3w. Certyfikaty s\u0105 podpisywane wewn\u0119trznym urz\u0119dowym centrum certyfikacji, wdra\u017canym przez tw\u00f3rc\u0119 sieci na jego zasobach i stosowanym do po\u015bwiadczenia uprawnie\u0144 host\u00f3w, kt\u00f3re maj\u0105 prawo do\u0142\u0105czenia do sieci nak\u0142adkowej.        <\/p>\n<p>Dla nawi\u0105zania uwierzytelnionego, zabezpieczonego kana\u0142u komunikacji w Nebula stosowany jest w\u0142asny protok\u00f3\u0142 tunelowy, oparty na protokole wymiany kluczy Diffiego-Hellmana oraz szyfrowaniu AES-256-GCM. Realizacja protoko\u0142u opiera si\u0119 na gotowych i przetestowanych prymitywach, dostarczanych przez framework Noise, kt\u00f3ry jest r\u00f3wnie\u017c wykorzystywany w takich projektach, jak WireGuard, Lightning i I2P. Twierdzi si\u0119, \u017ce projekt przeszed\u0142 niezale\u017cny audyt bezpiecze\u0144stwa.      <\/p>\n<p>Aby wykrywa\u0107 inne w\u0119z\u0142y i koordynowa\u0107 po\u0142\u0105czenia z sieci\u0105, tworzone s\u0105 specjalne w\u0119z\u0142y \u201elighthouse\u201d, kt\u00f3rych globalne adresy IP s\u0105 sta\u0142e i znane uczestnikom sieci. W\u0119z\u0142y uczestnik\u00f3w nie s\u0105 zwi\u0105zane ze zewn\u0119trznymi <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/pl\/lir\/ipv4\/\"   title=\"adresem IP\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"606\">adresem IP<\/a>, s\u0105 identyfikowane przez certyfikaty. W\u0142a\u015bciciele host\u00f3w nie mog\u0105 sami wprowadza\u0107 zmian w podpisanych certyfikatach i w przeciwie\u0144stwie do tradycyjnych sieci IP, nie mog\u0105 udawa\u0107 innego hosta po prostu zmieniaj\u0105c adres IP. Podczas tworzenia tunelu to\u017csamo\u015b\u0107 hosta jest potwierdzana indywidualnym kluczem prywatnym.    <\/p>\n<p>Tworzonej sieci przydzielany jest okre\u015blony zakres adres\u00f3w intranetowych (na przyk\u0142ad 192.168.10.0\/24) i realizowane jest powi\u0105zanie adres\u00f3w wewn\u0119trznych z certyfikatami host\u00f3w. Z uczestnik\u00f3w sieci overlay mog\u0105 by\u0107 tworzone grupy, na przyk\u0142ad do rozdzielenia serwer\u00f3w i stacji roboczych, do kt\u00f3rych stosowane s\u0105 oddzielne zasady filtrowania ruchu. Zapewniane s\u0105 r\u00f3\u017cne mechanizmy do omijania translator\u00f3w adres\u00f3w (NAT) i zap\u00f3r sieciowych. Mo\u017cliwa jest organizacja routingu przez sie\u0107 overlay dla ruchu zewn\u0119trznych host\u00f3w, kt\u00f3re nie wchodz\u0105 do sieci Nebula (unsafe route).    <\/p>\n<p>Obs\u0142ugiwane jest tworzenie zap\u00f3r sieciowych do rozdzielenia dost\u0119pu i filtrowania ruchu pomi\u0119dzy w\u0119z\u0142ami w sieci overlay Nebula. Do filtrowania stosowane s\u0105 ACL z powi\u0105zanymi tagami. Ka\u017cdy host w sieci mo\u017ce definiowa\u0107 w\u0142asne zasady filtrowania wed\u0142ug host\u00f3w, grup, protoko\u0142\u00f3w i port\u00f3w sieciowych. W tym przypadku hosty s\u0105 filtrowane nie wed\u0142ug adres\u00f3w IP, ale wed\u0142ug zatwierdzonych podpisem cyfrowym identyfikator\u00f3w hosta, kt\u00f3rych nie mo\u017cna sfa\u0142szowa\u0107 bez kompromitacji zespo\u0142u koordynuj\u0105cego sieciowy certyfikatu.    <\/p>\n<p>W nowym wydaniu:  <\/p>\n<ul>\n<li class=\"l\"> Do zespo\u0142u print-cert dodano flag\u0119 \u00ab-raw\u00bb do wy\u015bwietlania przedstawienia PEM certyfikatu.\n<li class=\"l\"> Dodano obs\u0142ug\u0119 nowej architektury Linux riscv64.\n<li class=\"l\"> Dodano eksperymentalne ustawienie remote_allow_ranges do przypisywania list autoryzowanych host\u00f3w do okre\u015blonych podsieci.\n<li class=\"l\"> Dodano opcj\u0119 pki.disconnect_invalid do resetowania tuneli po utracie zaufania lub wyga\u015bni\u0119ciu certyfikatu.\n<li class=\"l\"> Dodano opcj\u0119 unsafe_routes..metric do przypisania wagi okre\u015blonemu zewn\u0119trznemu routowi.        <\/ul>\n<p>\u0179r\u00f3d\u0142o: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=56142\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u043f\u0440\u043e\u0435\u043a\u0442\u0430 Nebula 1.5, \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u044e\u0449\u0435\u0433\u043e \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u0439 \u0434\u043b\u044f \u043f\u043e\u0441\u0442\u0440\u043e\u0435\u043d\u0438\u044f \u0437\u0430\u0449\u0438\u0449\u0451\u043d\u043d\u044b\u0445 \u043e\u0432\u0435\u0440\u043b\u0435\u0439\u043d\u044b\u0445 \u0441\u0435\u0442\u0435\u0439. \u0421\u0435\u0442\u044c \u043c\u043e\u0436\u0435\u0442 \u043e\u0431\u044a\u0435\u0434\u0438\u043d\u044f\u0442\u044c \u043e\u0442 \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u0438\u0445 \u0434\u043e \u0434\u0435\u0441\u044f\u0442\u043a\u043e\u0432 \u0442\u044b\u0441\u044f\u0447 \u0442\u0435\u0440\u0440\u0438\u0442\u043e\u0440\u0438\u0430\u043b\u044c\u043d\u043e \u0440\u0430\u0437\u0434\u0435\u043b\u0451\u043d\u043d\u044b\u0445 \u0445\u043e\u0441\u0442\u043e\u0432, \u0440\u0430\u0437\u043c\u0435\u0449\u0451\u043d\u043d\u044b\u0445 \u0443 \u0440\u0430\u0437\u043d\u044b\u0445 \u043f\u0440\u043e\u0432\u0430\u0439\u0434\u0435\u0440\u043e\u0432, \u0444\u043e\u0440\u043c\u0438\u0440\u0443\u044f \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u0443\u044e \u0438\u0437\u043e\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u0443\u044e \u0441\u0435\u0442\u044c \u043f\u043e\u0432\u0435\u0440\u0445 \u0433\u043b\u043e\u0431\u0430\u043b\u044c\u043d\u043e\u0439 \u0441\u0435\u0442\u0438. \u041f\u0440\u043e\u0435\u043a\u0442 \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Go \u0438 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 MIT. \u041f\u0440\u043e\u0435\u043a\u0442 \u043e\u0441\u043d\u043e\u0432\u0430\u043d \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0435\u0439 Slack, \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u044e\u0449\u0435\u0439 \u043e\u0434\u043d\u043e\u0438\u043c\u0451\u043d\u043d\u044b\u0439 \u043a\u043e\u0440\u043f\u043e\u0440\u0430\u0442\u0438\u0432\u043d\u044b\u0439 \u043c\u0435\u0441\u0441\u0435\u043d\u0434\u0436\u0435\u0440. \u041f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u0440\u0430\u0431\u043e\u0442\u0430 \u0432 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-102274","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u043f\u0440\u043e\u0435\u043a\u0442\u0430 Nebula 1.5, \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u044e\u0449\u0435\u0433\u043e \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u0439 \u0434\u043b\u044f \u043f\u043e\u0441\u0442\u0440\u043e\u0435\u043d\u0438\u044f \u0437\u0430\u0449\u0438\u0449\u0451\u043d\u043d\u044b\u0445 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