Course Lab

Lab 9 © R. Craig Collins, 2005/6

General Lab Directions
Note: There is not enough time in lecture to cover all the material; read your book BEFORE you begin the lab
Note: Typically labs will require you to invest some time in the lab, outside of class lecture hours

Check with your Instructor for due date, typically Friday, 11:59PM, of the week assigned

Discuss:
UPS
RAID
Baselining
Hardening
Audit Trails
Triggers and Alerts
Monitoring logged on users
Monitoring a network

Projects

Troubleshoot as directed
Book Project 12-1
Book Project 12-2
Book Project 12-6
Book Project 12-7
Book Project 12-10

Troubleshooting
1. Inventory
    a. Verify compatibility for hardware and firmware (BIOS)
2. 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
3. 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
4. Loads OS, but hangs when a device is started
    a. Non-Printer
        i. Dr. Watson
        ii. Roll back device driver
        iii. Update device driver
    b. Printers
        i. Print test page from printer
        ii. Who can, who can’t
            1. network
            2. permissions
            3. applications
5. Loads OS, but hangs when a program is started
    a. Dr. Watson
    b. Add/Remove software
    c. Dependency Walker
6. Can’t ‘use’ network resources
    a. Check permissions
        i. Right click object, properties, security
    b. Un-encrypt
        i. Cipher /D
7. Memory Issues
    a. Enough RAM?
        i. Failed
            1. www.memtest86.com
        ii. Computer requires more for current usage?
            1. Task Manager/Virtual Memory
    b. Memory Management for Older Computers
        i. Config.sys
            1. Hymem.sys
            2. Emm386.sys
8. Disks
    a. Maintenance
        i. Backup
        ii. Disk Clean up
        iii. Scan Disk
            1. May require preboot execution
        iv. Defragmentation
            1. Linux filesystems self defragment; you do need free space (about 20%) as
                ext2/3 avoids fragmentation if there is enough space to write contiguous files.
    b. Troubleshooting