28 February 2011

Configuring NFS in Linux

As a follow up to 'Configuring NFS in Solaris', we turn to the same
in Linux.  Briefly, NFS (network file system) provides access to remote
filesystems which appear similar to local resources on client hosts.
The following focuses on simple NFS server and client configuration in

24 February 2011

File Integrity Checks via Package DB

After a system has been installed, files tend to change over time.
These changes may be deliberate, part of normal host operation, the
result of an errant 'chmod', etc.  Tools like Samhain, AIDE, and Tripwire
(note 0) have been devised specifically to identify such changes which

20 February 2011

Configuring NFS in Solaris

Networked environments allow for the sharing of many resources, including
filesystems (FS).  As a long time industry standard in UNIX, NFS (network
file system) provides access to remote filesystems which appear similar
to local resources on client hosts.  Since Sun Microsystems originally

17 February 2011

Network Ports and Processes (Windows)

Previously, I wrote up how to match open network ports to running
processes
for FreeBSD, Solaris, and Linux.  If UNIX hosts can correlate
ports to processes, shouldn't Windows Server be able to as well?
Beginning with Windows 2000, it can.  Our host details for this are:

13 February 2011

new utility, basecon.pl

I've posted a new utility, basecon.pl, to the Tools page.  basecon.pl is a simple utility that converts base inputs to selected base output.  Currently, basecon.pl can accept input and output types of ascii, binary, decimal, hexadecimal, and octal.  The following is sample output from basecon.pl:
user@host [0] basecon.pl -h

03 February 2011

Static Routes in Linux

Nearly every UNIX sysadmin at some point will need to know how to manage
a host's routing table.  With that in mind, here's how to manage static
routes on a Red Hat Linux clone.  Our details for this are: