{"id":5232,"date":"2018-03-29T14:02:40","date_gmt":"2018-03-29T12:02:40","guid":{"rendered":"https:\/\/homecloud.pl\/support\/?p=5232"},"modified":"2018-03-29T14:11:14","modified_gmt":"2018-03-29T12:11:14","slug":"konfiguracja-firewall-uslug-cloud-vps-dla-protokolu-ftp","status":"publish","type":"post","link":"https:\/\/homecloud.pl\/support\/konfiguracja-firewall-uslug-cloud-vps-dla-protokolu-ftp\/","title":{"rendered":"Ustawienia firewall przy Cloud VPS dla protoko\u0142u FTP"},"content":{"rendered":"<p>Us\u0142ugi z linii <a href=\"https:\/\/homecloud.pl\/uslugi\/vps\/\" target=\"_blank\" rel=\"noopener\"><strong>Cloud VPS<\/strong><\/a>\u00a0wyposa\u017cone s\u0105 standardowo w aplikacj\u0119 firewall, kt\u00f3rej konfiguracja umo\u017cliwia blokowanie ruchu na wszystkich portach, kt\u00f3re nie s\u0105 obj\u0119te odpowiedni\u0105 regu\u0142\u0105 (DROP POLICY). Stwarza to pewne niedogodno\u015bci w momencie kiedy pr\u00f3bujemy nawi\u0105za\u0107 po\u0142\u0105czenie z serwerem przy u\u017cyciu protoko\u0142u FTP, kt\u00f3ry to wymaga mo\u017cliwo\u015bci komunikowania si\u0119 na 3 sposoby:<\/p>\n<ul>\n<li>poprzez port 21 dla wys\u0142ania informacji o logowaniu (login i has\u0142o);<\/li>\n<li>poprzez port 20 dla transferu danych;<\/li>\n<li><strong>poprzez losowy port z puli od 1024 wzwy\u017c\u00a0<\/strong>dla pobierania listy katalog\u00f3w;<\/li>\n<\/ul>\n<p>Nic nie stoi na przeszkodzie, aby utworzy\u0107 regu\u0142y dla dw\u00f3ch pierwszych przypadk\u00f3w, jednak zapora firewall nie pozwala na tworzenie regu\u0142, w kt\u00f3rych okre\u015blany b\u0119dzie zakres port\u00f3w, a jedynie poszczeg\u00f3lnych, wskazanych przez u\u017cytkownika. W takiej sytuacji posi\u0142kowa\u0107 mo\u017cna si\u0119 dwoma rozwi\u0105zaniami:<\/p>\n<ul>\n<li>1 rozwi\u0105zanie &#8211; wy\u0142\u0105czenie filtrowania ruchu przez firewall i korzystanie z w\u0142asnego rozwi\u0105zania np. iptables;<\/li>\n<li>2 rozwi\u0105zanie (zalecane) &#8211; ograniczenie zakresu port\u00f3w, kt\u00f3re mog\u0105 by\u0107 losowane przy pobieraniu directory listing;<\/li>\n<\/ul>\n<p>Jako, \u017ce pierwsze rozwi\u0105zanie nie wymaga obja\u015bnie\u0144, poni\u017cej znajdziesz instrukcje realizacji zaproponowanego zalecanego rozwi\u0105zania numer 2.<\/p>\n<h4><strong>Jak ograniczy\u0107 zakres port\u00f3w, kt\u00f3re mog\u0105 by\u0107 losowane przy pobieraniu directory listing?<\/strong><\/h4>\n<ol>\n<li>Logujemy si\u0119 do odpowiedniego kontenera poprzez konsol\u0119 lub SSH;\n<ul>\n<li><a href=\"https:\/\/homecloud.pl\/support\/jak-polaczyc-sie-z-moim-serwerem-za-pomoca-ssh\/\">Kliknij tutaj<\/a>, aby sprawdzi\u0107 jak si\u0119 zalogowa\u0107 przez SSH.<\/li>\n<\/ul>\n<\/li>\n<li>Poszukujemy pliku konfiguracyjnego aplikacji serwera FTP ? najcz\u0119\u015bciej jest to lokalizacja \/etc\/proftpd.d\/passive_ports.conf (je\u015bli plik nie istnieje, nale\u017cy go utworzy\u0107);<\/li>\n<li>Tworzymy w pliku dyrektyw\u0119: PassivePorts port_pocz\u0105tkowy port_ko\u0144cowy (przyk\u0142ad: PassivePorts 45001 45009)<\/li>\n<li>Zapisujemy zmiany w pliku.<\/li>\n<li>W Panelu klienta w ustawieniach firewall tworzymy zestaw regu\u0142 dopuszczaj\u0105cych ruch w protokole TCP dla ca\u0142ego zakresu port\u00f3w jaki zadeklarowali\u015bmy (czyli dla przyk\u0142adu powy\u017cej b\u0119dzie to 9 regu\u0142 kolejno od portu lokalnego 45001 do 45009)<\/li>\n<\/ol>\n<div class=\"fade in alert alert-warning\" style=\"text-align: justify;\">WA\u017bNE! Dla powy\u017cszego przyk\u0142adu uzyskamy mo\u017cliwo\u015b\u0107 nawi\u0105zania dziewi\u0119ciu r\u00f3wnoleg\u0142ych po\u0142\u0105cze\u0144 FTP ? je\u015bli taka liczba nie jest wystarczaj\u0105ca, to zakres nale\u017cy poszerzy\u0107 i doda\u0107 kolejne, odpowiadaj\u0105ce regu\u0142y.<\/div>\n<div class=\"helpful-block-content wth-theme-thumbs\" data-title=\"\" >\n<ul>\n<li><span class=\"wth-title\">Czy artyku\u0142 by\u0142 pomocny?<\/span><\/li>\n<li><a data-post=\"5232\" data-post-url=\"https:\/\/homecloud.pl\/support\/konfiguracja-firewall-uslug-cloud-vps-dla-protokolu-ftp\/\" data-post-title=\"Ustawienia firewall przy Cloud VPS dla protoko\u0142u FTP\" data-response=\"1\" href=\"#\" class=\"wth-green-btn icon-thumbsup\">TAK<\/a>&nbsp; &nbsp;<a data-response=\"0\" data-post=\"5232\" data-post-url=\"https:\/\/homecloud.pl\/support\/konfiguracja-firewall-uslug-cloud-vps-dla-protokolu-ftp\/\" data-post-title=\"Ustawienia firewall przy Cloud VPS dla protoko\u0142u FTP\" href=\"#\" class=\"wth-red-btn icon-thumbsdown\">Nie<\/a><\/li>\n<\/ul>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Us\u0142ugi z linii Cloud VPS\u00a0wyposa\u017cone s\u0105 standardowo w aplikacj\u0119 firewall, kt\u00f3rej konfiguracja umo\u017cliwia blokowanie ruchu na wszystkich portach, kt\u00f3re nie s\u0105 obj\u0119te odpowiedni\u0105 regu\u0142\u0105 (DROP POLICY). Stwarza to pewne niedogodno\u015bci w momencie <a class=\"blog-more btn btn-xxs btn-primary\" href=\"https:\/\/homecloud.pl\/support\/konfiguracja-firewall-uslug-cloud-vps-dla-protokolu-ftp\/\">Wi\u0119cej<\/a><\/p>\n","protected":false},"author":25,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[900,885,891],"tags":[976,1042,1112,1239,1240,1241,1242],"class_list":["post-5232","post","type-post","status-publish","format-standard","hentry","category-panel-zarzadzanie","category-vps","category-vps-inne","tag-firewall","tag-vps-2","tag-ftp","tag-cloud-vps","tag-porty","tag-drop-policy","tag-directory-listing"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ustawienia firewall przy Cloud VPS dla protoko\u0142u FTP - homecloud.pl\/support<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/homecloud.pl\/support\/konfiguracja-firewall-uslug-cloud-vps-dla-protokolu-ftp\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ustawienia firewall przy Cloud VPS dla protoko\u0142u FTP - homecloud.pl\/support\" \/>\n<meta property=\"og:description\" content=\"Us\u0142ugi z linii Cloud VPS\u00a0wyposa\u017cone s\u0105 standardowo w aplikacj\u0119 firewall, kt\u00f3rej konfiguracja umo\u017cliwia blokowanie ruchu na wszystkich portach, kt\u00f3re nie s\u0105 obj\u0119te odpowiedni\u0105 regu\u0142\u0105 (DROP POLICY). 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