[NBLUG/talk] Good anti virus, open sourrce soaftware?

[Christopher Wagner]

ClamAV is a good anti-virus scanner that is free.  Firewalls in Linux are
set-up by ipchains by default in RH 7.2.  The 'lokkit' or 'gnome-lokkit'
program will allow you to set-up a basic firewall on your computer, it comes
with RH 7.2 and should've been installed when the OS was installed..  There
isn't any spyware that I'm aware of that's directed toward Linux, as most
spyware preys on vulnerabilities in IE to implant themselves on the victim's
computer.  Viruses aren't really aimed at Linux either, but it's always nice
to watch all the M$ viruses get nabbed in the act.
 
As far as your questions about partitions, I'm not sure I understand what
you're going for.  But I'll try to clarify how the stuff works.  A single
drive, single partition IDE system is like (not counting a swap partition):
/ - /dev/hda1
- /bin
- /etc
- /home
- /opt
- /usr
- /var
etc...
 
If you're using more than one partition on a single drive, let's say three
partitions (not counting swap), you can choose what partition mounts to what
directory, I choose to have /home and /usr as seperate partitions:
 
/ - /dev/hda1
- /bin (hda1)
- /etc (hda1)
- /opt (hda1)
- /var (hda1)
/home - /dev/hda5 (5 is the first logical drive if partitioning in DOS
compatible format)
/usr - /dev/hda6
 
The root partition (in these examples, /dev/hda1) has all the other
directories placed underneath it.  The reason you don't see mount points in
/etc/fstab is because they're merely subdirectories of the root partition. 
A directory can be a mount point for a filesystem or just a directory off
the root partition.  Linux and Unix try to make everything one "logical"
filesystem.  If you want to add more directories to the second HD and have
it look like:
 
/ - /dev/hda1
- /bin (hda1)
- /etc (hda1)
- /opt (hda1)
- /usr (hda1)
- /var (hda1)
/music - /dev/hdb1
/pictures - /dev/hdb5
 
I've made the /music and /pictures directories two seperate partitions on
the second HD.  Another example:
 
/ - /dev/hda1
- /bin (hda1)
- /etc (hda1)
- /opt (hda1)
- /var (hda1)
/home - /dev/hda5
/usr - /dev/hda6
/home/chrisw/music - /dev/hdb1
/pictures - /dev/hdb5
 
A directory *must* be created first for Linux to mount a partition to it. 
So if you're mounting /dev/hdb1 to /music, you must *first* create an empty
folder called /music in the root filesystem.
 
I hope enough of that makes sense to help you. :)  Good luck.
 
- Christopher Wagner
chrisw at pacaids.com

Packaging Aids Corporation - Information Systems
P.O. Box 9144
San Rafael, CA 94912-9144
http://www.pacaids.com/
(415) 454-4868 x116
  

-----Original Message-----
From: talk-admin at nblug.org [mailto:talk-admin at nblug.org]On Behalf Of HarryH
Sent: Friday, January 16, 2004 9:02 PM
To: NBLUG
Subject: [NBLUG/talk] Good anti virus, open sourrce soaftware?


Hi,
Can anyone lead me to a good open source, free anti-virus, anti-spy and
firewall download site as my RH 7.2 does not have any protection?
 
Second question.  I just installed a second HD on my RH 7.2.  All went well
where it is recognized, has been partitioned, and has a filesystem mounted
and is accessible.  I noticed that in the /etc/fstab file, only 5 file
systems are described and the same in the /etc/mtab file.  Nowhere do I
see how /etc, /bin, /sbin and others are "mounted" on their respective
filesystems/partitions/slices on the first HD.  
 
What I would like to do is add more directories to the second HD but not
as sub directories.  When I do a ls -l on the "/" it shows the new directory
(on the second HD) as just another directory in the list.  Am I allowed only
one parent directory per partition/slice on the second HD?  Am I getting
confused between physical and logical drives?
 
Any into appreciated,
Thanks,
Harry 

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