3.3-current - few newbie type questions

["J.D. Bronson" <jeff_(_at_)_xpec_(_dot_)_com>]

I am not a newbie per se, but seem to have some basic questions I could use 
some advice on ;)

I am using open 3.3-current and quite pleased....however I have noticed the 
following and was wondering:

A. /var/mail is mode 755. I have 2 applications (mutt and pine) that need 
/var/mail to be mode 1777. I would prefer NOT to change modes, but dont 
know of a work-a-round. My last OS (solaris) was 1777 by default...just 
like /tmp.

B. GCC with propolice. This sounds great. Do I have stack protection on 
whenever I compile programs from source, or do I need to add a CFLAGS 
-fstack-protector to my env prior to compiling?

C. TCP
net.inet.tcp.recvspace = 16384
net.inet.tcp.sendspace = 16384

These seem quite low. Normally, I would crank them right up to 65536, but I 
wanted to see -if- and -when- this would be appropriate. I am seeing 
excellent transfer rates and the machine seems to rock. When might this 
need to be upped and how does one tell?

Thanks in advance for any answers.....these are all that I have :)




--
J.D. Bronson
Aurora Health Care // IS-Telecommunications // Milwaukee, WI USA
Office: 414.978.8282 // Fax: 414.328.8282 // Pager: 414.603.8282