{"id":978,"date":"2010-12-19T08:20:02","date_gmt":"2010-12-19T13:20:02","guid":{"rendered":"http:\/\/eljeffto.com\/?p=978"},"modified":"2014-07-08T18:19:42","modified_gmt":"2014-07-08T23:19:42","slug":"un-servidor-ntp-manual-unix","status":"publish","type":"post","link":"https:\/\/eljeffto.com\/?p=978","title":{"rendered":"Un servidor NTP manual – Unix"},"content":{"rendered":"

Administrando unos servidores se me present\u00f3 un problema con el kernel para Xen sobre centos, esto hac\u00eda que los relojes de las m\u00e1quinas virtuales se aceleraran por m\u00e1s de que se dejara sincronizando v\u00eda ntp con servidores externos, no era problema de hora en el anfitri\u00f3n, no era problema en la pila, era kernel, as\u00ed de simpl. Me ide\u00e9 un NTP manual, muy rudimentario, como suelen ser mis scripts, espero les sea de ayuda.<\/p>\n

1. En un servidor que tenga su hora normal y constantemente sincronizada crear un script con esto:<\/p>\n

[code]
\n#!\/bin\/bash
\na=$(date +%m%d%H%M)
\nssh -l root servidor -x date $a
\n[\/code]<\/p>\n

2. Intercambiar llaves rsa o dsa con el servidor o host Linux \u00a0a actualizar.<\/div>\n
3. Crear el cron de acuerdo a sus necesidades<\/div>\n
Listo, simple y al punto, un ntp manual.<\/div>\n","protected":false},"excerpt":{"rendered":"

Administrando unos servidores se me present\u00f3 un problema con el kernel para Xen sobre centos, esto hac\u00eda que los relojes de las m\u00e1quinas virtuales se aceleraran por m\u00e1s de que se dejara sincronizando v\u00eda ntp con servidores externos, no era problema de hora en el anfitri\u00f3n, no era problema en la pila, era kernel, as\u00ed … [Read more…]<\/a><\/span><\/p>\n","protected":false},"author":2,"featured_media":912,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15,25,27],"tags":[466,213,577,463,464,306,465],"class_list":{"0":"entry","1":"post","2":"publish","3":"author-jeffto","4":"post-978","6":"format-standard","7":"has-post-thumbnail","8":"category-linux","9":"category-reporte-seguridad-p","10":"category-softwarelibre","11":"post_tag-bug","12":"post_tag-centos","13":"post_tag-linux","14":"post_tag-ntp","15":"post_tag-red-hat","16":"post_tag-server","17":"post_tag-xen"},"_links":{"self":[{"href":"https:\/\/eljeffto.com\/index.php?rest_route=\/wp\/v2\/posts\/978","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/eljeffto.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/eljeffto.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/eljeffto.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/eljeffto.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=978"}],"version-history":[{"count":7,"href":"https:\/\/eljeffto.com\/index.php?rest_route=\/wp\/v2\/posts\/978\/revisions"}],"predecessor-version":[{"id":1588,"href":"https:\/\/eljeffto.com\/index.php?rest_route=\/wp\/v2\/posts\/978\/revisions\/1588"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/eljeffto.com\/index.php?rest_route=\/wp\/v2\/media\/912"}],"wp:attachment":[{"href":"https:\/\/eljeffto.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=978"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/eljeffto.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=978"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/eljeffto.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=978"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}