Here on\u00a0AKLWEB Host<\/strong>, we have the option to enable\u00a0IPv6<\/strong>\u00a0on all deployable VPSes. But with this, some programs and commands may prefer one or the other with unpredictable results.<\/p>\n

In this guide, we will configure\u00a0apt-get<\/code>\u00a0to use only\u00a0IPv4<\/strong>\u00a0or\u00a0IPv6<\/strong>. This guide targets Ubuntu 14.04 and Debian Jessie, but may work for newer versions as well.<\/p>\n

Fast command line option<\/h3>\n

If you want to force the apt-get to use IPv4 or IPv6 only one time, follow these steps. This feature is available after the\u00a00.9.7.9~exp1<\/code>\u00a0version of\u00a0apt-get<\/code>. First, make sure your version of\u00a0apt-get<\/code>\u00a0is newer than\u00a00.9.7.9~exp1<\/code>\u00a0by running the following command:<\/p>\n

apt-get --version\r\n<\/code><\/pre>\n
The result will be something like this:<\/p>\n
apt 1.0.1ubuntu2 for amd64 compiled on Oct 28 2014 20:55:14\r\n<\/code><\/pre>\n
If the version checks out, then you can force IPv4 with:<\/p>\n
apt-get -o Acquire::ForceIPv4=true update\r\n<\/code><\/pre>\n
or IPv6:<\/p>\n
apt-get -o Acquire::ForceIPv6=true update\r\n<\/code><\/pre>\n
This will update the repositories resolving the URLs in\u00a0sources.list<\/em>\u00a0to IPv4 only.<\/p>\n
Persistent option<\/h3>\n
To make the setting persistent, create the file\u00a099force-ipv4<\/code>\u00a0in\u00a0\/etc\/apt\/apt.conf.d\/<\/code>.<\/p>\n
sudoedit \/etc\/apt\/apt.conf.d\/99force-ipv4\r\n<\/code><\/pre>\n
Put the following contents in it:<\/p>\n
Acquire::ForceIPv4 \"true\";\r\n<\/code><\/pre>\n
Save the file, and you’re good to go. If you want to force IPv6 instead, change the\u00a04<\/strong>\u00a0to\u00a06<\/strong>\u00a0in the file name and settings. To choose between one of them, test with the fast method and see which works better.<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","manualknowledgebasecat":[233,242,247],"manual_kb_tag":[465],"_links":{"self":[{"href":"https:\/\/support.aklwebhost.com\/wp-json\/wp\/v2\/manual_kb\/2934"}],"collection":[{"href":"https:\/\/support.aklwebhost.com\/wp-json\/wp\/v2\/manual_kb"}],"about":[{"href":"https:\/\/support.aklwebhost.com\/wp-json\/wp\/v2\/types\/manual_kb"}],"author":[{"embeddable":true,"href":"https:\/\/support.aklwebhost.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/support.aklwebhost.com\/wp-json\/wp\/v2\/comments?post=2934"}],"version-history":[{"count":1,"href":"https:\/\/support.aklwebhost.com\/wp-json\/wp\/v2\/manual_kb\/2934\/revisions"}],"predecessor-version":[{"id":2935,"href":"https:\/\/support.aklwebhost.com\/wp-json\/wp\/v2\/manual_kb\/2934\/revisions\/2935"}],"wp:attachment":[{"href":"https:\/\/support.aklwebhost.com\/wp-json\/wp\/v2\/media?parent=2934"}],"wp:term":[{"taxonomy":"manualknowledgebasecat","embeddable":true,"href":"https:\/\/support.aklwebhost.com\/wp-json\/wp\/v2\/manualknowledgebasecat?post=2934"},{"taxonomy":"manual_kb_tag","embeddable":true,"href":"https:\/\/support.aklwebhost.com\/wp-json\/wp\/v2\/manual_kb_tag?post=2934"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}