{"id":2123,"date":"2018-12-17T12:55:57","date_gmt":"2018-12-17T11:55:57","guid":{"rendered":"https:\/\/www.websupport.sk\/podpora\/?post_type=ht_kb&#038;p=2123"},"modified":"2023-04-05T16:55:50","modified_gmt":"2023-04-05T14:55:50","slug":"obnova-webovej-stranky-zo-zaloh-na-virtualnom-serveri","status":"publish","type":"ht_kb","link":"https:\/\/www.websupport.sk\/podpora\/kb\/obnova-webovej-stranky-zo-zaloh-na-virtualnom-serveri\/","title":{"rendered":"Obnova webovej str\u00e1nky zo z\u00e1loh na virtu\u00e1lnom serveri"},"content":{"rendered":"\n<p>V tomto n\u00e1vode si uk\u00e1\u017eeme postup obnovy webu alebo aplik\u00e1cie zo z\u00e1lohy, ktor\u00e1 je dostupn\u00e1 na virtu\u00e1lnom serveri. Str\u00e1nky si naj\u010dastej\u0161ie ukladaj\u00fa \u00fadaje do s\u00faborov a do datab\u00e1zy &#8211; pop\u00ed\u0161eme si preto ako obnovi\u0165 zvl\u00e1\u0161\u0165 s\u00fabory a ako obnovi\u0165 datab\u00e1zu.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">PREDT\u00ddM NE\u017d ZA\u010cNEME<\/h2>\n\n\n\n<p>Po\u017eiadavky na server<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>N\u00e1vod je p\u00edsan\u00fd pre aktu\u00e1lne distrib\u00facie OS Ubuntu LTS (18.04, 20.04, 22.04)<\/li>\n\n\n\n<li>Na server je potrebn\u00e9 ma\u0165 pr\u00edstup cez protokol SSH, s root u\u017e\u00edvate\u013eom (alebo sudo privil\u00e9gi\u00e1)<\/li>\n\n\n\n<li>K serveru je potrebn\u00e9 ma\u0165 zak\u00fapen\u00fa slu\u017ebu Z\u00e1lohovanie servera<\/li>\n<\/ul>\n\n\n\n<p>Ako prv\u00fd krok skontrolujeme <a href=\"https:\/\/www.websupport.sk\/podpora\/kb\/pristup-k-zaloham-na-virtualnom-serveri\/\">pr\u00edstup k z\u00e1loh\u00e1m<\/a>. Z\u00e1lohy sa nach\u00e1dzaj\u00fa mimo V\u00e1\u0161ho servera, aby sa nezar\u00e1tavali do diskovej kapacity a aby boli dostupn\u00e9 aj v pr\u00edpade, \u017ee by sa s Va\u0161\u00edm serverom nie\u010do stalo. K V\u00e1\u0161mu serveru su pripojen\u00e9 cez sie\u0165, tzv. mountom do prie\u010dinka <strong>\/backups<\/strong>. Pre jednoduchos\u0165 si to m\u00f4\u017eete predstavi\u0165 ako USB k\u013e\u00fa\u010d zapojen\u00fd do V\u00e1\u0161ho po\u010d\u00edta\u010da, ktor\u00fd ale m\u00f4\u017eete odpoji\u0165 a bezpe\u010dne odlo\u017ei\u0165, \u010di pripoji\u0165 do in\u00e9ho zariadenia. Mount skontrolujeme pr\u00edkazom:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>root@vps:~# mount | grep \/backup\nbackup8.websupport.sk:\/ssd_backups\/vps-cust\/abcdefgh-1234-5678-ijkl-mnoprstuvxyz\/ on \/backups type nfs<\/code><\/pre>\n\n\n    \t\t<div class=\"hts-messages hts-messages--info  hts-messages--withtitle hts-messages--withicon \"   >\r\n    \t\t\t<span class=\"hts-messages__title\">Inform\u00e1cia<\/span>    \t\t\t    \t\t\t\t<p>\r\n    \t\t\t\t\tAk v\u00fdstup neobsahuje \u017eiadny mount a slu\u017ebu z\u00e1lohovania servera m\u00e1te zak\u00fapen\u00fa, naj\u010dastej\u0161ie ide o &#8222;odpojen\u00fd USB k\u013e\u00fa\u010d&#8220;, teda d\u00e1ta nie s\u00fa moutnut\u00e9 na Va\u0161om serveri. V takom pr\u00edpade pros\u00edm kontaktujte na\u0161u podporu.     \t\t\t\t<\/p>\r\n    \t\t\t    \t\t\t\r\n    \t\t<\/div><!-- \/.ht-shortcodes-messages -->\r\n    \t\t\n\n\n\n<h2 class=\"wp-block-heading\">OBNOVA<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Obnova s\u00faborov<\/h3>\n\n\n\n<p>Na obnovu s\u00faborov pou\u017eijeme program&nbsp;<strong>rsync<\/strong>, ktor\u00fd je pri kop\u00edrovan\u00ed d\u00e1t ve\u013emi efekt\u00edvny. V pr\u00edpade \u017ee sa na Va\u0161om VPS nenach\u00e1dza, in\u0161tal\u00e1cia je jednoduch\u00e1:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>root@vps:~# apt-get install rsync -y<\/code><\/pre>\n\n\n\n<p>Samotn\u00e9 kop\u00edrovanie s\u00faborov spust\u00edme pr\u00edkazom ni\u017e\u0161ie. Pre rsync pr\u00edkaz ur\u010d\u00edme prep\u00edna\u010de na kompresiu (r\u00fdchlej\u0161\u00ed prenos d\u00e1t <strong>-a<\/strong>), na detailnej\u0161\u00ed priebeh kop\u00edrovania (verbose <strong>-v<\/strong>), a na prep\u00edsanie s\u00faborov t\u00fdmi zo z\u00e1lohy (teda aby sme obnovili v\u0161etko zo z\u00e1lohy <strong>&#8211;delete<\/strong>).<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>root@vps:~# rsync -av --delete &lt;zdroj> &lt;ciel><\/code><\/pre>\n\n\n\n<p>Zdroj bude v na\u0161om pr\u00edpade z\u00e1loha, z ktorej ideme s\u00fabory obnovova\u0165, cie\u013e zasa miesto, kam obnovujeme. Za predpokladu, \u017ee obnovujeme cel\u00fd adres\u00e1r <strong>\/data\/web\/domena.tld\/web<\/strong> z d\u00e1tumu 2.4.2023, odpor\u00fa\u010dame pou\u017ei\u0165 nasledovn\u00fd pr\u00edkaz:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>root@vps:~# rsync -av --delete \/backups\/.zfs\/snapshot\/2023-04-02-13:40:23\/root\/data\/web\/domena.tld\/web\/ \/data\/web\/domena.tld\/web<\/code><\/pre>\n\n\n\n<p>Samotn\u00fd d\u00e1tum, ako aj cestu k d\u00e1tam m\u00f4\u017eete samozrejme dynamicky meni\u0165 pod\u013ea potreby. Z\u00e1lohy s\u00fa dostupn\u00e9 po dobu posledn\u00fdch 14 dn\u00ed, vylistova\u0165 si ich viete pomocou pr\u00edkazu <strong>ls<\/strong>, ktor\u00fd pou\u017eijete na prie\u010dinok \/backups\/.zfs\/snapshot:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>root@vps:\/backups\/.zfs\/snapshot# ls -al\ndrwxr-xr-x 4 root root 4 Aug 25  2022 2023-03-22-13:21:34\ndrwxr-xr-x 4 root root 4 Aug 25  2022 2023-03-23-13:20:48\ndrwxr-xr-x 4 root root 4 Aug 25  2022 2023-03-24-13:22:08\ndrwxr-xr-x 4 root root 4 Aug 25  2022 2023-03-25-13:32:22\ndrwxr-xr-x 4 root root 4 Aug 25  2022 2023-03-26-13:24:22\ndrwxr-xr-x 4 root root 4 Aug 25  2022 2023-03-27-13:30:08\ndrwxr-xr-x 4 root root 4 Aug 25  2022 2023-03-28-13:30:53\ndrwxr-xr-x 4 root root 4 Aug 25  2022 2023-03-29-13:34:27\ndrwxr-xr-x 4 root root 4 Aug 25  2022 2023-03-30-13:35:19\ndrwxr-xr-x 4 root root 4 Aug 25  2022 2023-03-31-13:35:10\ndrwxr-xr-x 4 root root 4 Aug 25  2022 2023-04-01-13:39:30\ndrwxr-xr-x 4 root root 4 Aug 25  2022 2023-04-02-13:40:23\ndrwxr-xr-x 4 root root 4 Aug 25  2022 2023-04-03-13:44:52\ndrwxr-xr-x 4 root root 4 Aug 25  2022 2023-04-04-13:48:38\ndrwxr-xr-x 4 root root 4 Aug 25  2022 2023-04-05-13:49:40<\/code><\/pre>\n\n\n    \t\t<div class=\"hts-messages hts-messages--info  hts-messages--withtitle hts-messages--withicon \"   >\r\n    \t\t\t<span class=\"hts-messages__title\">Inform\u00e1cia<\/span>    \t\t\t    \t\t\t\t<p>\r\n    \t\t\t\t\tAk v prie\u010dinku \/backups nevid\u00edte prie\u010dinok .zfs, je to v poriadku &#8211; tento prie\u010dinok je schovan\u00fd, je v\u0161ak mo\u017en\u00e9 s n\u00edm norm\u00e1lne pracova\u0165.     \t\t\t\t<\/p>\r\n    \t\t\t    \t\t\t\r\n    \t\t<\/div><!-- \/.ht-shortcodes-messages -->\r\n    \t\t\n\n\n\n<h3 class=\"wp-block-heading\">Obnova datab\u00e1zy<\/h3>\n\n\n\n<p>Kompletn\u00e1 obnova webu je v\u00e4\u010d\u0161inou podmienen\u00e1 aj obnovou datab\u00e1zy, ktor\u00e1 je k nemu pripojen\u00e1. Bu\u010fte ale opatrn\u00ed, nako\u013eko datab\u00e1za m\u00f4\u017ee obsahova\u0165 d\u00e1ta, o ktor\u00e9 nechcete pr\u00eds\u0165 (napr. v pr\u00edpade eshopov s\u00fa to objedn\u00e1vky). Pri takejto obnove pr\u00eddete o v\u0161etko, \u010do bolo do datab\u00e1zy zap\u00edsan\u00e9 po vytvoren\u00ed z\u00e1lohy.<br>Tento krok odpor\u00fa\u010dame spravi\u0165 z rovnak\u00e9ho \u010dasu, z ak\u00e9ho boli obnoven\u00e9 s\u00fabory. Dodato\u010dn\u00e9 z\u00e1lohy datab\u00e1z m\u00f4\u017eeme n\u00e1js\u0165 vylistovan\u00edm dan\u00e9ho prie\u010dinku (teda napr\u00edklad pre d\u00e1tum  2.4.2023):<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>root@vps:\/backups\/.zfs\/snapshot\/2023-04-02-13:40:23\/mysql# ls -al \ntotal 39\ndrwxr-xr-x 4 root root 4 Apr  2 13:40 .\ndrwxr-xr-x 4 root root 4 Aug 25  2022 ..\ndrwxr-xr-x 2 root root 7 Apr  1 13:30 2023-04-01_13-30\ndrwxr-xr-x 2 root root 7 Apr  2 13:31 2023-04-02_13-30<\/code><\/pre>\n\n\n    \t\t<div class=\"hts-messages hts-messages--info  hts-messages--withtitle hts-messages--withicon \"   >\r\n    \t\t\t<span class=\"hts-messages__title\">Inform\u00e1cia<\/span>    \t\t\t    \t\t\t\t<p>\r\n    \t\t\t\t\tFrekvenciu z\u00e1lohovania datab\u00e1z je mo\u017en\u00e9 nastavi\u0165 na in\u00fa hodnotu ako pri z\u00e1lohovan\u00ed d\u00e1t, m\u00f4\u017eete ma\u0165 teda pre jeden de\u0148 viacero dumpov.    \t\t\t\t<\/p>\r\n    \t\t\t    \t\t\t\r\n    \t\t<\/div><!-- \/.ht-shortcodes-messages -->\r\n    \t\t\n\n\n\n<p>Nako\u013eko chceme obnovi\u0165 datab\u00e1zu \u010do najbli\u017e\u0161ie k d\u00e1tumu obnovy s\u00faborov, vyberieme prie\u010dinok 2023-04-02_13-30:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(Managed) root@inlibri:\/backups\/.zfs\/snapshot\/2023-04-02-13:40:23\/mysql\/2023-04-02_13-30# ls -al\n-rw-r--r-- 1 root root    59913 Apr  2 13:31 databaza.sql.gz\n-rw-r--r-- 1 root root 32571502 Apr  2 13:31 databaza_dev.sql.gz\n-rw-r--r-- 1 root root   382999 Apr  2 13:31 databaza_test.sql.gz<\/code><\/pre>\n\n\n\n<p>N\u00e1sledne m\u00f4\u017eeme obnovi\u0165 konkr\u00e9tnu datab\u00e1zu z dumpu &#8211; teda .sql s\u00faboru, ktor\u00fd obsahuje d\u00e1ta z datab\u00e1zy. Do pr\u00edkazu zad\u00e1vame meno datab\u00e1zy, meno pou\u017e\u00edvate\u013ea a heslo pou\u017e\u00edvate\u013ea &#8211; v pr\u00edpade root pr\u00edstupu v\u0161ak nemusia by\u0165 tieto \u00fadaje potrebn\u00e9.<\/p>\n\n\n    \t\t<div class=\"hts-messages hts-messages--info  hts-messages--withtitle hts-messages--withicon \"   >\r\n    \t\t\t<span class=\"hts-messages__title\">Inform\u00e1cia<\/span>    \t\t\t    \t\t\t\t<p>\r\n    \t\t\t\t\tObnovu je najlep\u0161ie vykon\u00e1va\u0165 do novo vytvorenej datab\u00e1zy, aby v\u00e1m v pr\u00edpade potreby ostala p\u00f4vodn\u00e1 zachovan\u00e1. Uistite sa, \u017ee ste na nov\u00fa datab\u00e1zu nasmerovali svoj web pomocou \u00fapravy jeho konfigur\u00e1cie.    \t\t\t\t<\/p>\r\n    \t\t\t    \t\t\t\r\n    \t\t<\/div><!-- \/.ht-shortcodes-messages -->\r\n    \t\t\n\n\n\n<p>Najprv z\u00e1lohu datab\u00e1zy odpor\u00fa\u010dame skop\u00edrova\u0165 napr\u00edklad do home prie\u010dinku:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>root@vps:~# cp \/backups\/.zfs\/snapshot\/2023-04-02-13:40:23\/mysql\/2023-04-02_13-30\/databaza.sql.gz ~\/databaza.sql.gz<\/code><\/pre>\n\n\n\n<p>Najjednoduch\u0161\u00ed sp\u00f4sob obnovy je kombin\u00e1cia pr\u00edkazu zcat na pre\u010d\u00edtanie komprimovan\u00e9ho s\u00faboru, a n\u00e1sledne mysql na nahratie obsahu do datab\u00e1zy:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>root@vps:~# zcat databaza.sql.gz | mysql -u user_name -p -h localhost db_name<\/code><\/pre>\n\n\n\n<p>user_name = u\u017e\u00edvate\u013e, s ktor\u00fdm sa prip\u00e1jate do datab\u00e1zy<br>db_name = n\u00e1zov datab\u00e1zy<br><br>Po spusten\u00ed pr\u00edkazu bude potrebn\u00e9 e\u0161te zada\u0165 heslo pre datab\u00e1zov\u00e9ho u\u017e\u00edvate\u013ea (z h\u013eadiska bezpe\u010dnosti ho neodpor\u00fa\u010dame vklada\u0165 priamo do pr\u00edkazu). Ak m\u00e1te root u\u017e\u00edvate\u013ea bez nutnosti zad\u00e1vania hesla, bude sta\u010di\u0165 aj tak\u00e1to forma pr\u00edkazu: <\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>root@vps:~# zcat ~\/databaza.sql.gz | mysql db_name<\/code><\/pre>\n\n\n\n<p>Druh\u00e1 mo\u017enos\u0165 je dump najprv dekomprimova\u0165 pr\u00edkazom <strong>gunzip<\/strong>, \u010d\u00edm vznikne s\u00fabor databaza.sql, a potom ho nahra\u0165 do datab\u00e1zy:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>root@vps:~# gunzip ~\/databaza.sql.gz\nroot@vps:~# mysql -u user_name -p -h localhost db_name &lt; ~\/databaza.sql<\/code><\/pre>\n\n\n\n<p>Hotovo, d\u00e1ta s\u00fa obnoven\u00e9. Ak sa web po obnove nenach\u00e1dza v \u017eelanom stave, sk\u00faste postup zopakova\u0165 so star\u0161ou z\u00e1lohou. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>V tomto n\u00e1vode si uk\u00e1\u017eeme postup obnovy webu alebo aplik\u00e1cie zo z\u00e1lohy, ktor\u00e1 je dostupn\u00e1 na virtu\u00e1lnom serveri. Str\u00e1nky si naj\u010dastej\u0161ie ukladaj\u00fa \u00fadaje do s\u00faborov a do datab\u00e1zy &#8211; pop\u00ed\u0161eme si preto ako obnovi\u0165 zvl\u00e1\u0161\u0165 s\u00fabory a ako obnovi\u0165 datab\u00e1zu. PREDT\u00ddM NE\u017d ZA\u010cNEME Po\u017eiadavky na server Ako prv\u00fd krok skontrolujeme&#8230;<\/p>\n","protected":false},"author":28,"template":"","format":"standard","meta":{"footnotes":""},"ht-kb-category":[52],"ht-kb-tag":[],"class_list":["post-2123","ht_kb","type-ht_kb","status-publish","format-standard","hentry","ht_kb_category-vps"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Obnova webovej str\u00e1nky zo z\u00e1loh na virtu\u00e1lnom serveri - Websupport centrum podpory<\/title>\n<meta name=\"description\" content=\"V tejto \u010dasti si uk\u00e1\u017eeme postup obnovy webu alebo aplik\u00e1cie zo z\u00e1lohy na virtu\u00e1lnom serveri. Pozrieme sa na obnovu s\u00faborov, n\u00e1sledne obnov\u00edme aj datab\u00e1zu.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.websupport.sk\/podpora\/kb\/obnova-webovej-stranky-zo-zaloh-na-virtualnom-serveri\/\" \/>\n<meta property=\"og:locale\" content=\"sk_SK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Obnova webovej str\u00e1nky zo z\u00e1loh na virtu\u00e1lnom serveri - Websupport centrum podpory\" \/>\n<meta property=\"og:description\" content=\"V tejto \u010dasti si uk\u00e1\u017eeme postup obnovy webu alebo aplik\u00e1cie zo z\u00e1lohy na virtu\u00e1lnom serveri. 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