On Tue, 15 Feb 2005 21:41:02 -0600, Brad Carpenter wrote: > OK, basic question here, we are running RHEL3 AS using it for ISP functions, > last time I connected to RHN it wanted to download a caching-nameserver, > which I did, which took over and made our secondary DNS server "fall off the > map". > > We recovered fairly easily, albeit very nervously, and wish NOT to run into > such problem again. > > Question is "Are there updates that we should ignore on a system like this?" > And if so, how does one go about picking and choosing what to skip and what > to keep? > > I see posts that say "update everything" all the time, is this the way it is > expected to work? Yes. Precisely, get the security/bug-fix updates for all packages you have installed already. Be careful when adding new packages to your installation which don't replace existing old packages. The caching-nameserver package you installed was not present on your system before and hence overwrote existing config files with its new contents. Probably just /etc/named.conf and local zone files in /var/named. Once installed, the config files within RPM packages are protected in two ways against being overwritten during updates. Depending on how an RPM package is configured, an update either creates *.rpmsave backup files of existing config files or stores its new config files in *.rpmnew where you can review them before copying any new default settings to your existing config files. Where you can choose a custom name for config files (e.g. zone files in in /var/named) choose a good namespace that's unlikely to be used by RPM packages. -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
