Keeping Up-to-date AfNOG X Cairo, Egypt.

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Presentation transcript:

Keeping Up-to-date AfNOG X Cairo, Egypt

Recap on FreeBSD design Distribution includes kernel, and some user-land binaries (bind, shells, network tools, etc) Third party applications installed from three main ways: from source from the binary package from the port What does this mean for means of upgrading?

FreeBSD system upgrade Binary upgrade with freebsd-update. http://www.freebsd.org/doc/en/books/handbook/updating-upgrading-freebsdupdate.html What disadvantages does this have? What advantages? freebsd-update fetch freebsd-update install What are the equivalents on the linux world?

Source Update recall: we can build FreeBSD base system from sources to upgrade we just need a new set of source code from which we can do make lots of ways to get the new source code cvsup (most popular) cvsup -h cvsup7.FreeBSD.org -g -L 2 /usr/share/examples/cvsup/stable-supfile CTM (for low bandwidth situations) http://www.freebsd.org/doc/en/books/handbook/ctm.html

Third Party software: recall: freebsd binary packages are pre-compiled ports. manual upgrade process: download new binary pkg_delete old binary (may need -f to ignore dependencies) pkg_add new package. automated using portupgrade

updating the ports tree Enter portsnap! portsnap fetch portsnap install (for the first time you run it) portsnap update (for other times you run it) portsnap fetch update We shall NOT run this in class. Why? Once that is done we can use portupgrade portupgrade -arR

When to upgrade new features you (or your clients) are going to use. security updates mailing lists have a -announce equivalient where low volume annoucements are made. For FreeBSD freebsd-announce@freebsd.org

portaudit Downloads database of security ports nightly and sends email warning of problems. Run in cron - sends emails on potential security threats.

Exercises install portaudit and run it against currently running software to see what it says: portinstall -PP portaudit /usr/local/sbin/portaudit -Fda

Extra exercise build freebsd from source following the instructions in /usr/src/Makefile and /usr/src/UPDATING