Overview 1
Networking-Hallberg
Introduction
Chapter 1 Business of networking
Chapter 2 Foundations
Troubleshooting
Introduction
Bits and Bytes
ITSC 1305 Overview 1: Terms and Big Picture
Notation of binary, octal, decimal, and hexadecimal
IMED 1316 Overview 6: Numbers
*Hardware
Familiar with two/three desktop operating systems… Windows, Linux, DOS
ITSC 1305
*Applications
ITSE 1294
Business of networking
Network Administrator
Network Engineer
Network Architect
Sarbanes-Oxley Act of 2002
Foundations
Bits, Nibbles, and Bytes
Binary
Conversion
Networking Speed
Troubleshooting
1. No Boot
a. NO POST ->Missing or bad BIOS hardware -> Replace
b. Yes POST -> Hard Drive -> SCANDISK
c. Yes POST -> Hard Drive -> RESTORE
d. Yes POST -> Hard Drive -> FDISK
e. Yes POST -> Hard Drive -> RESTORE
2. Boots, but hangs after OS begins to load
a. Restart to Menu -> Last Good Configuration
b. Restart to Menu -> Safe mode
c. Restart to Menu -> command line -> SCANREG /RESTORE
d. Boot ASD/ERD -> Repair OS
3. Loads OS, but hangs when a device is started
a. Non-Printer
1. Dr. Watson
2. Roll back device driver
4.
5.
6.
7.
3. Update device driver
b. Printers
1. Print test page from printer
2. Who can, who can’t
1. network
2. permissions
3. applications
Loads OS, but hangs when a program is started
a. Dr. Watson
b. Add/Remove software
c. Dependency Walker
Can’t ‘use’ network resources
a. Check permissions
1. Right click object, properties, security
b. Un-encrypt
1. Cipher /D
Memory Issues
a. Enough RAM?
1. Failed
1. www.memtest86.com
2. Computer requires more for current usage?
1. Task Manager/Virtual Memory
b. Memory Management for Older Computers
1. Config.sys
1. Hymem.sys
2. Emm386.sys
Disks
a. Maintenance
1. Backup
2. Disk Clean up
3. Scan Disk
1. May require preboot execution
4. Defragmentation
1. Linux filesystems self defragment; you do need free
space (about 20%) as ext2/3 can avoid fragmentation if
there is enough free space to write contiguous files.
b. Troubleshooting