{"id":49,"date":"2016-09-02T14:09:47","date_gmt":"2016-09-02T12:09:47","guid":{"rendered":"http:\/\/gillan.be\/wordpress\/?p=49"},"modified":"2016-09-03T14:09:18","modified_gmt":"2016-09-03T12:09:18","slug":"slow-connection-on-linux-xinetd-telnet-when-logging-is-on","status":"publish","type":"post","link":"http:\/\/gillan.be\/wordpress\/slow-connection-on-linux-xinetd-telnet-when-logging-is-on\/","title":{"rendered":"Slow connection on Linux xinetd Telnet when logging is enabled"},"content":{"rendered":"<p><strong>Problem:<\/strong> Telnet sessions to a Linux machine (in my case CentOS 6.8)\u00a0via xinetd take half a minute or longer before showing the login prompt<\/p>\n<p><strong>Solution:<\/strong> Disable USERID logging, for xinetd telnet this is located in \/etc\/xinetd.d\/telnet file<\/p>\n<p>Example:<\/p>\n<pre class=\"SCREEN\"><tt class=\"COMMAND\" style=\"font-family: courier, 'courier new', monospace; font-size: 12pt;\">service telnet\r\n{\r\n        disable         = no\r\n        flags           = REUSE\r\n        socket_type     = stream\r\n        wait            = no\r\n        user            = root\r\n        server          = \/usr\/sbin\/in.telnetd\r\n        log_on_failure  = PID HOST <span style=\"color: #ff0000;\">USERID<\/span>\r\n        log_on_success  += PID HOST EXIT\r\n}<\/tt><\/pre>\n<p>Just remove USERID if it is declared in any place and save the file, after which you should restart xinetd<\/p>\n<p>&nbsp;<\/p>\n<p>Source:<\/p>\n<p>http:\/\/www.tomshardware.co.uk\/forum\/4447-50-improving-response-time-network-requests<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Problem: Telnet sessions to a Linux machine (in my case CentOS 6.8)\u00a0via xinetd take half a minute or longer before showing the login prompt Solution: Disable USERID logging, for xinetd telnet this is located in \/etc\/xinetd.d\/telnet file Example: service telnet { disable = no flags = REUSE socket_type = stream wait = no user = &hellip; <\/p>\n<p class=\"link-more\"><a href=\"http:\/\/gillan.be\/wordpress\/slow-connection-on-linux-xinetd-telnet-when-logging-is-on\/\" class=\"more-link\">Read more<span class=\"screen-reader-text\"> &#8220;Slow connection on Linux xinetd Telnet when logging is enabled&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[12],"tags":[16,14,13,15],"class_list":["post-49","post","type-post","status-publish","format-standard","hentry","category-linux-centos","tag-linux","tag-slow","tag-telnet","tag-xinetd"],"featured_media_urls":[],"_links":{"self":[{"href":"http:\/\/gillan.be\/wordpress\/wp-json\/wp\/v2\/posts\/49","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/gillan.be\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/gillan.be\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/gillan.be\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/gillan.be\/wordpress\/wp-json\/wp\/v2\/comments?post=49"}],"version-history":[{"count":6,"href":"http:\/\/gillan.be\/wordpress\/wp-json\/wp\/v2\/posts\/49\/revisions"}],"predecessor-version":[{"id":55,"href":"http:\/\/gillan.be\/wordpress\/wp-json\/wp\/v2\/posts\/49\/revisions\/55"}],"wp:attachment":[{"href":"http:\/\/gillan.be\/wordpress\/wp-json\/wp\/v2\/media?parent=49"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/gillan.be\/wordpress\/wp-json\/wp\/v2\/categories?post=49"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/gillan.be\/wordpress\/wp-json\/wp\/v2\/tags?post=49"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}