| Managing ECSC Linux Firewalls | ||
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ECSC firewalls use the RedHat Package Management system (RPM) to manage the various versions of software installed and keep track of upgrades.
Lots of things can go wrong whilst upgrading RPMs on a remote firewall:
Loss of services;
Loss of remote admin access (usually ssh);
Machine not booting after upgrades (not often detected until months later);
RPM database corruption;
Loss of your job.
The APT utilities help keep RPMs up-to-date by comparing the local list of installed RPMs and versions with a remote, central database.
This central database, or APT repository, and RPM archive is accessible via HTTP at http://updates.ecsc.co.uk/apt. The APT utilities use standard HTTP to access these files.
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| Introduction | Upgrading Gnu C Libraries (glibc, glibc-common) |