Karl L. Pearson
email: karlp at ourldsfamily dot com.
For potential clients or employers, visit my
cover letter
and resume
to see my intentions and more accomplishments than are listed below.
Operating Systems:
- Microsoft Windows v3.01 to XP, including Setup, maintenance,
repair and disaster recovery.
- Linux, Unix (most flavors; SVR4 and Berkeley: HPUX, AIX,
Sequent, Sequoia, DEC, MIPS)
- Cisco routers.
Networking:
- Email Servers and Clients, Sendmail, Pine (Unix or PC), Outlook
and Outlook Express in both POP and IMAP server and client environments.
- Webmail using Squirrelmail, an open-source product.
- Secure Shell and Secure Sockets Layer for 128-bit encrypted
secure communications between servers and clients in X-Windows and
Microsoft Windows environments.
- Terminal Services (Remote Desktop), a product of Microsoft.
- VNC, a free product from the UK labs of AT&T that allows visual
(X-windows and MS Windows) connectivity across platforms (SUN, Linux
and 32-bit versions of MS Windows).
- Apache Web Server (open and/or closed), including virtual domains.
- Samba Server for network neighborhood connectivity between
Linux and MS Windows systems, enabling networked printer and file/directory
shares.
- LPR/LPD networked printing
uniVerse (a multivalue database from IBM):
- Trouble-shooting and programming in uniVerse BASIC
- Administration, including setup and maintenance.
- Manual repair of corrupt files (becoming less necessary over time).
- Miscellaneous: Terminal emulation and connectivity, peripheral
setup and maintenance, including tape drives, printers, modems,
wired and wireless networks, etc.
Hardware:
- Intel/AMD personal computer hardware
- IBM and Hewlett Packard Unix servers
- AMF and Symbol RF-Scanner setup and administration
- printers, scanners, tape drives (internal and external), CD/CDrw/DVD/DVDrw
- hubs, routers, network appliances and switches
- terminal servers and port controllers (DTC, Linksys, Systech)
Miscellaneous:
- Unix shell scripting (bash, ksh, Perl)
- Database access from HTTP
- CGI (HTML) scripting for updates, email, registration, etc.
- Spamassassin setup and configuration
- ClamAV Antivirus for email gateways setup and configuration
- UniVerse Database access to and from NFS mounted Linux HTML server
- VSI-Fax Server managment (a Product of Esker Software)
- Constantly Learning . . .
Accomplishments:
- IBM AIX has(had) a bug where the mounted permissions and mount point
permissions must match else data corruption can occur when writing to
database files. I discovered this bug.
- Hard Disks that are formatted cold, have data corruption later on
when the read/write heads no longer fit the expanded medium where the
tracks were laid out. I recommended a solution which, obviously, involved
low-level re-formatting. This saved a company thousands of dollars.
- Wrote an application used to forward all email for a given individual who has changed email addresses. This process parses through Email which is in standard SMTP format, and re-delivers it to a new email address maintaining original From: email headers.
- Most recently, discovered a bug for the uniVerse RDBMS when resizing
dynamic files on NFS mounts. Originally (then Vmark) NFS mounts were only
supported for text file transfers from within uniVerse so remote systems
could be used to store data received off the internet or through ftp or
email, then processed. However, the need for using vast disk farms has
created a problem. IBM is deciding whether or not to support NFS mounts
(it already implies support by the inclusion of ALLOWNFS in the uniVerse
kernel) and has indicated they will create a workaround so resizing files
involving directories (Dynamic, Types 1 and 19) will work. I wrote a
workaround (called RRESIZE) which solves the problem nicely. This saved
a client the cost of a locally mounted SCSI disk array on their Unix server.
- Recommended a fix for a gap in insurance coverage which earned thousands
of dollars during the past few years.
- Have setup Linux-based email servers which have experienced NO unscheduled
downtime since as far back as 1995.
- No successful break-ins on any network personally setup and managed.
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