Gentoo

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Essential Packages

• logrotate - rotate log files on a routine basis (force with logrotate -f /etc/logrotate.conf)

Checking for Vulnerabilities

To check installed ebuilds against known vulnerabilities, first make sure app-portage/gentoolkit is installed, then use the following command:

glsa-check -l affected

Fixing Broken Dependencies

revdep-rebuild --ignore --pretend
revdep-rebuild -i -p -v

Building Packages

quickpkg

Finding what ebuild a File Belongs To

 equery belongs file

Backup an Ebuild

Use quickpkg

Generate a New Manifest for a Crudely Hacked Ebuild

ebuild /usr/local/portage/net-irc/xchat/xchat-2.0.9.ebuild digest

Changing Portage Profile

eselect profile list
eselect profile set <number>

Unmask Package

Add a line to /etc/portage/package.keywords like so:

net-mail/qmrtg ~amd64

Package Specific USE Flags

• Defined in /etc/portage/package.use

Example:

net-ftp/proftpd -mysql -ssl
net-libs/courier-authlib -mysql -berkdb -gdbm
sys-apps/ucspi-tcp limits
app-admin/sudo offensive

Customize an ebuild

HOWTO Create an Updated Ebuild

Edit world Favorites

/var/lib/portage/world

Package Information

All package info is located in /var/db/pkg

Passive Mode FTP with g-cpan

env FTP_PASSIVE=1 g-cpan -i Acme::Damn