from /var/log/messages:

problem 1: (is it really a problem?), how can i correct named?
Nov 27 17:09:08 venera named[98]: MAXQUERIES exceeded, possible data loop in resolving (ad.doubleclick.net)

problem 2: how can i correct the kernel? (or apache?)
Nov 27 17:16:39 venera /netbsd: mb_map full

problem 3: my scsi disk is failing? is this fatal?
Nov 29 17:14:42 venera /netbsd: sd0(ahc0:0:0):  Check Condition on opcode 0x28
Nov 29 17:14:43 venera /netbsd:     SENSE KEY:  Media Error
Nov 29 17:14:43 venera /netbsd:    INFO FIELD:  8672339
Nov 29 17:14:43 venera /netbsd:      ASC/ASCQ:  Unrecovered Read Error         SKSV:  Actual Retry Count: 41
Nov 29 17:14:43 venera /netbsd: 
Nov 29 17:14:43 venera /netbsd: sd0(ahc0:0:0):  Check Condition on opcode 0x28
Nov 29 17:14:43 venera /netbsd:     SENSE KEY:  Media Error
Nov 29 17:14:44 venera /netbsd:    INFO FIELD:  8672339
Nov 29 17:14:44 venera /netbsd:      ASC/ASCQ:  Unrecovered Read Error         SKSV:  Actual Retry Count: 41
Nov 29 17:14:44 venera /netbsd: 
Nov 29 17:32:33 venera xntpd[169]: synchronized to 129.116.206.10, stratum=1

venera: AcerAltos Pentium Pro 200 running NetBSD 1.3.2 (i installed
it 3 months ago and this is the first time that i see a disk message)
an adaptec 7880 chip in the motherboard, 3com 3C900 combo in the pci
bus, 2 scsi-iii hard disks (4.5 GB, 68 pin, 7.5 ms)

venera is a dns server (just cache) and a web cache server using
apache 1.3.0 (i just use it as proxy) (a 3 GB partition)
i found it in /pub/NetBSD/packages/1.3/i386/All (no precompiled
version for 1.3.2) 120-150 clients aprox daily using venera as
proxy server (port 80) and dns server.
Also time service for some clients... thats all (no X, no
telnetd, no ftpd, etc)

Thanks for your time

Heron Gallegos
Centro Siglo XXI - Informatica Educativa
Saltillo, Coah., Mexico