login.conf limiting values

[Kim Onnel <karim_(_dot_)_adel_(_at_)_gmail_(_dot_)_com>]

Hi,

I am configuring a server with the following H/W

OpenBSD 3.6 (GENERIC) #59: Fri Sep 17 12:32:57 MDT 2004
    deraadt_(_at_)_i386_(_dot_)_openbsd_(_dot_)_org:/usr/src/sys/arch/i386/compile/GENERIC
cpu0: Intel Pentium III ("GenuineIntel" 686-class) 665 MHz
cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE
real mem  = 132751360 (129640K)
avail mem = 114503680 (111820K)


it will serve as a bastion host for a number of users to ssh to it and
telnet from there, it will be used extensively all the day, because a
NOC will use it, now besides making this host secure, i dont want it
to get exahusted, CPU and memory prespective,

so i was looking for correct values to give for /etc/login.conf 

like 

coredumpsize 
 The maximum size of any core dump
 
cputime 
 The maximum CPU time any process may use
 
datasize 
 The maximum memory size of data that can be consumed by one process
 
filesize 
 The maximum size of any file
 
stacksize 
 The maximum amount of memory on the stack usable by a process
 
memoryuse 
 The maximum amount of memory a process can lock
 
maxproc 
 The maximum number of processes the user can have running
 
openfiles 
 The maximum number of open files per process
 

and this server will have 20 users logging in simultaneously, is that
ok, 20 ssh sessions and 20 telnet sessions outbound ?