Linux and Memory
I'm running some Red Hat 7.2-boxes with Apache and Qmail among other things. The boxes are AMD 1,7GHz with 1024MB RAM.They run just fine, however there are some issues with the random memory that I cannot seem to understand.
Issue number 1:
I've tried to make the boxes understand that they have 1024MB RAM by putting append="mem=1024M" in the lilo.conf, but still they say that they have 899652kB of MemTotal which makes something like 878,56MB RAM, doesn't it? So how do I make the servers understand how much memory they actually have installed?
Issue number 2:
After reboot the box says that it has something between 600 and 700MB Memory free. After like 12 to 24 hours it only has left 25-30MB Memory free!? Now I've seen into some other servers (not run by me) that they might have installed 512MB RAM or more, but still have only down to 7MB Memory left. Why is that happening? Is that just normal in the world of Linux? It kind of doesn't look too good, not that it seems to affect the server in any way, not load or usage.
(and while I'm first writing, does anyone have a how-to on setting up two ns on one box with different ip's?) :-)
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Pulsar