{"id":699,"date":"2016-07-08T17:40:48","date_gmt":"2016-07-08T12:10:48","guid":{"rendered":"https:\/\/blog.pheonixsolutions.com\/?p=699"},"modified":"2016-07-08T17:41:21","modified_gmt":"2016-07-08T12:11:21","slug":"699-2","status":"publish","type":"post","link":"https:\/\/pheonixsolutions.com\/blog\/699-2\/","title":{"rendered":"Enabling log rotation on Linux Hosts"},"content":{"rendered":"

Log rotation is a way of managing old log files to reduce disk space usage on the server.<\/p>\n

By default logrotate is invoked once a day using a cron scheduler from location \/etc\/cron.daily\/<\/p>\n

grep logrotate.conf \/etc\/cron.daily\/logrotate<\/code>
\n \/usr\/sbin\/logrotate \/etc\/logrotate.conf >\/dev\/null 2>&1<\/code><\/p>\n

Logrotation is manged by two different configuration files \/etc\/logrotate.conf<\/b> [generic file] and a service specific configuration file placed under \/etc\/logrotate.d\/ <\/b>folder.<\/p>\n

In our recent post, we have added how to enable cmdlog<\/a> on linux host. Let’s configure logrotation for the same. For example, we have to add below contents in \/etc\/logrotate.d\/cmdlog [name can be anything ] file to enable logrotation for \/var\/log\/cmdlog.log.<\/p>\n

\/var\/log\/cmdlog.log<\/code>
\n {<\/code>
\n missingok<\/code>
\n notifempty<\/code>
\n size 200M<\/code>
\n rotate 5<\/code>
\n compress<\/code>
\n create 0600 root root<\/code>
\n sharedscripts<\/code>
\n postrotate<\/code>
\n \/bin\/kill -HUP `cat \/var\/run\/syslogd.pid 2> \/dev\/null` 2> \/dev\/null || true<\/code>
\n endscript<\/code>
\n }<\/code><\/p>\n

Where,<\/p>\n

\/var\/log\/cmdlog.log :<\/b> Log file for which rotation is needed; We can specify multiple log files[one per line] or else use regex to cover multiple log files. Example : \/var\/log\/*.log can be used.<\/p>\n

missingok :<\/b> Do not output error if logfile is missing.<\/p>\n

notifempty :<\/b> Do not rotate log file if it is empty<\/p>\n

size :<\/b> Log file is rotated only if it grow bigger than the specified size.<\/p>\n

rotate :\u00a0<\/b> ensures that logrotate keeps a specified number of backup of log files.<\/p>\n

compress :<\/b> Old versions of log files are compressed with gzip by default.<\/p>\n

create :<\/b> Creates a new log file wit permissions 600 where owner and group is root user.<\/p>\n

daily, weekly,\u00a0 monthly,\u00a0 or\u00a0 yearly :<\/b> Backup rotation interval<\/p>\n

prerotate & postrotate : <\/b>In some cases, we might have to restart a service or kill a process before or after rotating logs in such cases we can use these options.<\/p>\n

For more available options, try “man logrotate”<\/b> command.<\/p>\n

Once above file is created, either we can wait for logrotation to happen when the cron runs or else we can issue below command to run logrotate forcefully.<\/p>\n

logrotate -f \/etc\/logrotate.conf<\/code><\/p>\n","protected":false},"excerpt":{"rendered":"

Log rotation is a way of managing old log files to reduce disk space usage on the server. By default logrotate is invoked once a day using a cron scheduler from location \/etc\/cron.daily\/ grep logrotate.conf \/etc\/cron.daily\/logrotate \/usr\/sbin\/logrotate \/etc\/logrotate.conf >\/dev\/null 2>&1 Logrotation is manged by two different configuration files \/etc\/logrotate.conf [generic… Continue Reading Enabling log rotation on Linux Hosts<\/span><\/i><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-699","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-uncategorized","7":"h-entry","9":"h-as-article"},"yoast_head":"\nPheonix Solutions - We Empower Your Business Growth<\/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:\/\/pheonixsolutions.com\/blog\/699-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pheonix Solutions - We Empower Your Business Growth\" \/>\n<meta property=\"og:description\" content=\"Log rotation is a way of managing old log files to reduce disk space usage on the server. By default logrotate is invoked once a day using a cron scheduler from location \/etc\/cron.daily\/ grep logrotate.conf \/etc\/cron.daily\/logrotate \/usr\/sbin\/logrotate \/etc\/logrotate.conf >\/dev\/null 2>&1 Logrotation is manged by two different configuration files \/etc\/logrotate.conf [generic… Continue Reading Enabling log rotation on Linux Hosts\" \/>\n<meta property=\"og:url\" content=\"https:\/\/pheonixsolutions.com\/blog\/699-2\/\" \/>\n<meta property=\"og:site_name\" content=\"PHEONIXSOLUTIONS\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/PheonixSolutions-209942982759387\/\" \/>\n<meta property=\"article:published_time\" content=\"2016-07-08T12:10:48+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2016-07-08T12:11:21+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/pheonixsolutions.com\/blog\/wp-content\/uploads\/2016\/09\/PX2.png\" \/>\n\t<meta property=\"og:image:width\" content=\"3837\" \/>\n\t<meta property=\"og:image:height\" content=\"2540\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@pheonixsolution\" \/>\n<meta name=\"twitter:site\" content=\"@pheonixsolution\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/699-2\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/699-2\\\/\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/#\\\/schema\\\/person\\\/0ffa33d73c869faec2d50e79c24e3503\"},\"headline\":\"Enabling log rotation on Linux Hosts\",\"datePublished\":\"2016-07-08T12:10:48+00:00\",\"dateModified\":\"2016-07-08T12:11:21+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/699-2\\\/\"},\"wordCount\":296,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/#organization\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/699-2\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/699-2\\\/\",\"url\":\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/699-2\\\/\",\"name\":\"Pheonix Solutions - We Empower Your Business Growth\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/#website\"},\"datePublished\":\"2016-07-08T12:10:48+00:00\",\"dateModified\":\"2016-07-08T12:11:21+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/699-2\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/699-2\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/699-2\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Enabling log rotation on Linux Hosts\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/\",\"name\":\"Pheonix Solutions\",\"description\":\"We Empower Your Business Growth\",\"publisher\":{\"@id\":\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/#organization\",\"name\":\"PheonixSolutions\",\"url\":\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/wp-content\\\/uploads\\\/2016\\\/12\\\/logo.png\",\"contentUrl\":\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/wp-content\\\/uploads\\\/2016\\\/12\\\/logo.png\",\"width\":454,\"height\":300,\"caption\":\"PheonixSolutions\"},\"image\":{\"@id\":\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/PheonixSolutions-209942982759387\\\/\",\"https:\\\/\\\/x.com\\\/pheonixsolution\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/#\\\/schema\\\/person\\\/0ffa33d73c869faec2d50e79c24e3503\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/09bacc0294abee1322a23ab4bc6a0330dd4cb4df707dc9d0b0efeba6c109608b?s=96&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/09bacc0294abee1322a23ab4bc6a0330dd4cb4df707dc9d0b0efeba6c109608b?s=96&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/09bacc0294abee1322a23ab4bc6a0330dd4cb4df707dc9d0b0efeba6c109608b?s=96&r=g\",\"caption\":\"admin\"},\"sameAs\":[\"http:\\\/\\\/blog.pheonixsolutions.com\"],\"url\":\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/author\\\/admin\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Pheonix Solutions - We Empower Your Business Growth","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/pheonixsolutions.com\/blog\/699-2\/","og_locale":"en_US","og_type":"article","og_title":"Pheonix Solutions - We Empower Your Business Growth","og_description":"Log rotation is a way of managing old log files to reduce disk space usage on the server. By default logrotate is invoked once a day using a cron scheduler from location \/etc\/cron.daily\/ grep logrotate.conf \/etc\/cron.daily\/logrotate \/usr\/sbin\/logrotate \/etc\/logrotate.conf >\/dev\/null 2>&1 Logrotation is manged by two different configuration files \/etc\/logrotate.conf [generic… Continue Reading Enabling log rotation on Linux Hosts","og_url":"https:\/\/pheonixsolutions.com\/blog\/699-2\/","og_site_name":"PHEONIXSOLUTIONS","article_publisher":"https:\/\/www.facebook.com\/PheonixSolutions-209942982759387\/","article_published_time":"2016-07-08T12:10:48+00:00","article_modified_time":"2016-07-08T12:11:21+00:00","og_image":[{"width":3837,"height":2540,"url":"https:\/\/pheonixsolutions.com\/blog\/wp-content\/uploads\/2016\/09\/PX2.png","type":"image\/png"}],"author":"admin","twitter_card":"summary_large_image","twitter_creator":"@pheonixsolution","twitter_site":"@pheonixsolution","twitter_misc":{"Written by":"admin","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/pheonixsolutions.com\/blog\/699-2\/#article","isPartOf":{"@id":"https:\/\/pheonixsolutions.com\/blog\/699-2\/"},"author":{"name":"admin","@id":"https:\/\/pheonixsolutions.com\/blog\/#\/schema\/person\/0ffa33d73c869faec2d50e79c24e3503"},"headline":"Enabling log rotation on Linux Hosts","datePublished":"2016-07-08T12:10:48+00:00","dateModified":"2016-07-08T12:11:21+00:00","mainEntityOfPage":{"@id":"https:\/\/pheonixsolutions.com\/blog\/699-2\/"},"wordCount":296,"commentCount":0,"publisher":{"@id":"https:\/\/pheonixsolutions.com\/blog\/#organization"},"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/pheonixsolutions.com\/blog\/699-2\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/pheonixsolutions.com\/blog\/699-2\/","url":"https:\/\/pheonixsolutions.com\/blog\/699-2\/","name":"Pheonix Solutions - We Empower Your Business Growth","isPartOf":{"@id":"https:\/\/pheonixsolutions.com\/blog\/#website"},"datePublished":"2016-07-08T12:10:48+00:00","dateModified":"2016-07-08T12:11:21+00:00","breadcrumb":{"@id":"https:\/\/pheonixsolutions.com\/blog\/699-2\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/pheonixsolutions.com\/blog\/699-2\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/pheonixsolutions.com\/blog\/699-2\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/pheonixsolutions.com\/blog\/"},{"@type":"ListItem","position":2,"name":"Enabling log rotation on Linux Hosts"}]},{"@type":"WebSite","@id":"https:\/\/pheonixsolutions.com\/blog\/#website","url":"https:\/\/pheonixsolutions.com\/blog\/","name":"Pheonix Solutions","description":"We Empower Your Business Growth","publisher":{"@id":"https:\/\/pheonixsolutions.com\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/pheonixsolutions.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/pheonixsolutions.com\/blog\/#organization","name":"PheonixSolutions","url":"https:\/\/pheonixsolutions.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/pheonixsolutions.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/pheonixsolutions.com\/blog\/wp-content\/uploads\/2016\/12\/logo.png","contentUrl":"https:\/\/pheonixsolutions.com\/blog\/wp-content\/uploads\/2016\/12\/logo.png","width":454,"height":300,"caption":"PheonixSolutions"},"image":{"@id":"https:\/\/pheonixsolutions.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/PheonixSolutions-209942982759387\/","https:\/\/x.com\/pheonixsolution"]},{"@type":"Person","@id":"https:\/\/pheonixsolutions.com\/blog\/#\/schema\/person\/0ffa33d73c869faec2d50e79c24e3503","name":"admin","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/09bacc0294abee1322a23ab4bc6a0330dd4cb4df707dc9d0b0efeba6c109608b?s=96&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/09bacc0294abee1322a23ab4bc6a0330dd4cb4df707dc9d0b0efeba6c109608b?s=96&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/09bacc0294abee1322a23ab4bc6a0330dd4cb4df707dc9d0b0efeba6c109608b?s=96&r=g","caption":"admin"},"sameAs":["http:\/\/blog.pheonixsolutions.com"],"url":"https:\/\/pheonixsolutions.com\/blog\/author\/admin\/"}]}},"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p7F4uM-bh","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/pheonixsolutions.com\/blog\/wp-json\/wp\/v2\/posts\/699","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pheonixsolutions.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pheonixsolutions.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pheonixsolutions.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pheonixsolutions.com\/blog\/wp-json\/wp\/v2\/comments?post=699"}],"version-history":[{"count":0,"href":"https:\/\/pheonixsolutions.com\/blog\/wp-json\/wp\/v2\/posts\/699\/revisions"}],"wp:attachment":[{"href":"https:\/\/pheonixsolutions.com\/blog\/wp-json\/wp\/v2\/media?parent=699"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pheonixsolutions.com\/blog\/wp-json\/wp\/v2\/categories?post=699"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pheonixsolutions.com\/blog\/wp-json\/wp\/v2\/tags?post=699"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}