The package you are looking for is not in the xenial-security
repository, it's in the Multiverse component of the core Ubuntu repository for Xenial.
From rmadison
, a tool that can be used to get information about what packages exist in what repositories/components from the Ubuntu repository data, we can determine both the Repository and Component in which the package exists (xenial/Multiverse
indicates it is in the core xenial
repository, not the xenial-security
one):
libapache2-mod-fastcgi | 2.4.7~0910052141-1 | precise/multiverse | amd64, armel, armhf, i386, powerpc
libapache2-mod-fastcgi | 2.4.7~0910052141-1.1 | trusty/multiverse | amd64, arm64, armhf, i386, powerpc, ppc64el
libapache2-mod-fastcgi | 2.4.7~0910052141-1.1 | vivid/multiverse | amd64, arm64, armhf, i386, powerpc, ppc64el
libapache2-mod-fastcgi | 2.4.7~0910052141-1.2 | wily/multiverse | amd64, arm64, armhf, i386, powerpc, ppc64el
libapache2-mod-fastcgi | 2.4.7~0910052141-1.2 | xenial/multiverse | amd64, arm64, armhf, i386, powerpc, ppc64el, s390x
libapache2-mod-fastcgi | 2.4.7~0910052141-1.2 | yakkety/multiverse | amd64, arm64, armhf, i386, powerpc, ppc64el, s390x
You need to edit the xenial
line of your sources.list
to enable the Multiverse repository. You may wish to also enabled Multiverse on xenial-updates
and xenial-security
so you get security and general updates. (You may omit the xenial-updates
if you want only security updates, but note you can introduce breakages if the Apache version changes in one repo but not the other)