{"id":506,"date":"2021-03-09T11:07:16","date_gmt":"2021-03-09T11:07:16","guid":{"rendered":"https:\/\/dev.sourcecode.sk\/wsczkb\/?post_type=ht_kb&#038;p=506"},"modified":"2022-12-09T15:45:04","modified_gmt":"2022-12-09T14:45:04","slug":"rizeni-pristupu-na-webovou-stranku","status":"publish","type":"ht_kb","link":"https:\/\/www.websupport.cz\/podpora\/kb\/rizeni-pristupu-na-webovou-stranku\/","title":{"rendered":"\u0158\u00edzen\u00ed p\u0159\u00edstup\u016f na webovou str\u00e1nku"},"content":{"rendered":"\n<p class=\"wp-block-ht-blocks-messages wp-block-hb-message wp-block-hb-message--withicon is-style-alert\"><strong>N\u00e1vod pro m\u00edrn\u011b pokro\u010dil\u00e9<\/strong><\/p>\n\n\n\n<p style=\"font-size:18px\">V p\u0159\u00edpad\u011b, \u017ee se na Va\u0161\u00ed str\u00e1nce mno\u017e\u00ed spamov\u00e9 koment\u00e1\u0159e, doch\u00e1z\u00ed k \u010dast\u00fdm pokus\u016fm o proniknut\u00ed&nbsp;od automatizovan\u00fdch robot\u016f, V\u00e1\u0161 web byl napadnut\u00fd, resp.&nbsp;jin\u00fdm zp\u016fsobem zneu\u017eit\u00fd nebo jednodu\u0161e chcete pro bezpe\u010dnost z ur\u010dit\u00e9 zem\u011b jednoduch\u00fdm zp\u016fsobem p\u0159\u00edstup zamezit,&nbsp;budou&nbsp;jako prvn\u00ed kroky k n\u00e1prav\u011b pot\u0159ebn\u00e9:<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<ul class=\"wp-block-list\">\n<li>ov\u011b\u0159it stupe\u0148&nbsp;napaden\u00ed Va\u0161eho webu n\u00e1strojem&nbsp;<a href=\"https:\/\/www.websupport.cz\/podpora\/kb\/virus-scanner\/\"><strong>Webscanner<\/strong><\/a><\/li>\n\n\n\n<li>blokovat&nbsp;p\u0159\u00edstup na webovou str\u00e1nku na z\u00e1klad\u011b zem\u011b, ze kter\u00e9 IP adresa poch\u00e1z\u00ed<\/li>\n\n\n\n<li>blokovat&nbsp;IP adresy, z kter\u00fdch \u00fatoky poch\u00e1dzej\u00ed<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Zablokov\u00e1n\u00ed p\u0159\u00edstupu na z\u00e1klad\u011b zem\u011b<br><\/h2>\n\n\n\n<p> Je d\u016fle\u017eit\u00e9 analyzovat p\u0159\u00edstupy na str\u00e1nku, z kter\u00e9 napaden\u00ed poch\u00e1z\u00ed &#8211; je to mo\u017en\u00e9&nbsp;bu\u010f extern\u00edm, ale velmi vyu\u017e\u00edvan\u00fdm n\u00e1strojem&nbsp;<a href=\"https:\/\/www.websupport.cz\/podpora\/kb\/statistiky-navstevnosti-pres-google-analytics\/\"><strong>Google Analytics<\/strong><\/a>&nbsp;nebo p\u0159es offline anal\u00fdzu pomoc\u00ed n\u00e1mi doporu\u010den\u00e9ho n\u00e1stroje&nbsp;<strong><a href=\"http:\/\/www.apacheviewer.com\/\">Apache viewer<\/a><\/strong>&nbsp;.&nbsp;V tomto kroku je pot\u0159ebn\u00e9 zjistit&nbsp;<strong>GeoIP k\u00f3d zem\u011b<\/strong>&nbsp;(podle normy iso3166). P\u0159i t\u00e9to anal\u00fdze t\u00e9\u017e pom\u016f\u017ee&nbsp;klasifikace podle n\u00e1sleduj\u00edc\u00edho&nbsp;<strong><a href=\"http:\/\/dev.maxmind.com\/geoip\/legacy\/codes\/iso3166\/\">seznamu zem<\/a><\/strong><a href=\"http:\/\/dev.maxmind.com\/geoip\/legacy\/codes\/iso3166\/\"><strong>\u00ed<\/strong><\/a>&nbsp;Po zji\u0161t\u011bn\u00ed p\u0159\u00edm\u00e9ho k\u00f3du zem\u011b m\u016f\u017eete \u0159\u00eddit p\u0159\u00edstup direktivami v souboru .htaccess , p\u0159i\u010dem\u017e ka\u017edou ne\u017e\u00e1douc\u00ed zemi m\u016f\u017eete p\u0159idat jednoduch\u00fdm p\u0159\u00edkazem: <\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">&lt;IfModule mod_geoip.c&gt;\nGeoIPEnable On\n&lt;\/IfModule&gt;\n\nSetEnvIf GEOIP_COUNTRY_CODE UA dny\nSetEnvIf GEOIP_COUNTRY_CODE RU dny\nSetEnvIf GEOIP_COUNTRY_CODE CN dny\nDeny from env=dny<\/pre>\n\n\n\n<p>Tento k\u00f3d nap\u0159\u00edklad blokuje p\u0159\u00edstup z Ukrajiny, Ruska a \u010c\u00edny. Tento postup je mo\u017en\u00e9 kop\u00edrovat pro v\u00edce zem\u00ed, p\u0159\u00edpadn\u011b&nbsp;direktivu tzv. &#8222;oto\u010dit&#8220;.&nbsp;<br><\/p>\n\n\n\n<p>Pokud bychom tedy cht\u011bli povolit p\u0159\u00edstup pouze ze Slovenska:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">&lt;IfModule mod_geoip.c>\nGeoIPEnable On \n&lt;\/IfModule>\n\nSetEnvIf GEOIP_COUNTRY_CODE SK alw\nDeny from all\n\nAllow from env=alw<\/pre>\n\n\n\n<p>V p\u0159\u00edpad\u011b pot\u0159eby m\u016f\u017eeme povolit p\u0159\u00edstup jen z vybran\u00fdch zem\u00ed. K\u00f3d uveden\u00fd n\u00ed\u017ee povoluje p\u0159\u00edstup ze Slovenka, Polska, \u010ceska a Ma\u010farska.<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">&lt;IfModule mod_geoip.c&gt;\n&nbsp; &nbsp; &nbsp; &nbsp; GeoIPEnable On\n&lt;\/IfModule&gt;\n&lt;IfModule mod_authz_core.c&gt;\n&nbsp; &nbsp; &nbsp; &nbsp; Require expr \"%{ENV:GEOIP_COUNTRY_CODE} in { 'SK', 'PL', 'CZ', 'HU' }\"\n&lt;\/IfModule&gt;<\/pre>\n\n\n\n<p>Takt\u00e9\u017e je mo\u017en\u00e9 pou\u017e\u00edt r\u016fzn\u00e9 bezplatn\u00e9 n\u00e1stroje (v\u011bt\u0161inou v Angli\u010dtin\u011b) na generov\u00e1n\u00ed k\u00f3du, kter\u00fd p\u0159es htaccess soubor m\u016f\u017eete pou\u017e\u00edt. N\u00e1mi doporu\u010den\u00e1 str\u00e1nka je&nbsp;<a rel=\"noreferrer noopener\" href=\"https:\/\/www.countryipblocks.net\/country_selection.php\" target=\"_blank\">countryipblocks.net<\/a>.<br><\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Zablokovanie pr\u00edstupu na z\u00e1klade ip adresy<br><\/h2>\n\n\n\n<p>V niektor\u00fdch pr\u00edpadoch m\u00f4\u017ee by\u0165 potrebn\u00e9 obmedzi\u0165 pr\u00edstup k webu z niektorej IP adresy alebo naopak pr\u00edstup povoli\u0165 iba pre niektor\u00fa IP adresu, \u010di u\u017e z d\u00f4vodu bezpe\u010dnosti alebo testovania webu.&nbsp;Pr\u00edstup je mo\u017en\u00e9 riadi\u0165 pomocou s\u00faboru .htaccess pomocou direkt\u00edv Order, Allow a Deny spomenut\u00fdch u\u017e vy\u0161\u0161ie pre pr\u00edstup z ur\u010ditej lok\u00e1cie.&nbsp;Direkt\u00edva Allow povo\u013euje pr\u00edstup z IP adresy, Deny pr\u00edstup blokuje.&nbsp;<\/p>\n\n\n\n<p>Pokia\u013e teda potrebujete napr\u00edklad blokova\u0165 pr\u00edstup z IP 93.23.11.7 &nbsp;, prid\u00e1te do &nbsp;.htaccess<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">Deny from 93.23.11.7<\/pre>\n\n\n\n<p>Tieto direkt\u00edvy sa sprac\u00favaj\u00fa v troch krokoch, poradie spracovania ur\u010duje direkt\u00edva Order.<\/p>\n\n\n\n<p>Narozdiel od typick\u00e9ho firewallu plat\u00ed v\u017edy posledn\u00e9 zachyten\u00e9 pravidlo, direkt\u00edvy s\u00fa spracovan\u00e9 v skupin\u00e1ch, najprv Allow, potom Deny, alebo naopak.&nbsp;Mo\u017en\u00e9 poradia ur\u010den\u00e9 direktivou Order s\u00fa:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">Order Deny,Allow<\/pre>\n\n\n\n<p>Prv\u00e9 s\u00fa spracovan\u00e9 direkt\u00edvy Deny, n\u00e1sledne Allow, Ak\u00e1ko\u013evek&nbsp;adresa, ktor\u00e1 spad\u00e1 pod Deny bude zamietnut\u00e1, ak nespad\u00e1 aj pod direkt\u00edvu Allow. Ak po\u017eiadavka nespad\u00e1 ani pod Deny, ani pod Allow, je povolen\u00e1. &nbsp;<br><\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">Order Allow,Deny<\/pre>\n\n\n\n<p>\n\nAko prv\u00e9 s\u00fa spracovan\u00e9 direkt\u00edvy Allow a n\u00e1sledne Deny. Pokia\u013e pr\u00edstup spad\u00e1 pod pravidl\u00e1 definovan\u00e9 v Deny, bude pr\u00edstup blokovan\u00fd bez oh\u013eadu na to, \u010di spad\u00e1 aj pod pravidl\u00e1 z direkt\u00edv Allow. Ak IP adresa nespad\u00e1 ani pod jednu z direkt\u00edv, je blokovan\u00e1.&nbsp;<\/p>\n\n\n\n<p>V nasledovnom k\u00f3de je pr\u00edstup povolen\u00fd iba z IP&nbsp;37.13.22.16, z ostatn\u00fdch adries je pr\u00edstup zamietnut\u00fd:\n\n<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">Order Deny,Allow\nDeny from all\nAllow from 37.13.22.16<\/pre>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>V p\u0159\u00edpad\u011b, \u017ee se na Va\u0161\u00ed str\u00e1nce mno\u017e\u00ed spamov\u00e9 koment\u00e1\u0159e, doch\u00e1z\u00ed k \u010dast\u00fdm pokus\u016fm o proniknut\u00ed&nbsp;od automatizovan\u00fdch robot\u016f, V\u00e1\u0161 web byl napadnut\u00fd, resp.&nbsp;jin\u00fdm zp\u016fsobem zneu\u017eit\u00fd nebo jednodu\u0161e chcete pro bezpe\u010dnost z ur\u010dit\u00e9 zem\u011b jednoduch\u00fdm zp\u016fsobem p\u0159\u00edstup zamezit,&nbsp;budou&nbsp;jako prvn\u00ed kroky k n\u00e1prav\u011b pot\u0159ebn\u00e9: Zablokov\u00e1n\u00ed p\u0159\u00edstupu na z\u00e1klad\u011b zem\u011b Je d\u016fle\u017eit\u00e9 analyzovat&#8230;<\/p>\n","protected":false},"author":3,"template":"","format":"standard","meta":{"footnotes":""},"ht-kb-category":[21],"ht-kb-tag":[],"class_list":["post-506","ht_kb","type-ht_kb","status-publish","format-standard","hentry","ht_kb_category-webova-php-nastaveni"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - 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