How to ping from OSX: In Mac OS X, how can I check to see if a computer is on the network?.

Welcome to my RJ11 and RJ45 pin-out cheat sheet! I referred to this a lot when I was first pulling cable, but really all you need to do is memorize the two end types.

(Click the image to embiggen.)

Wire colors:
wo = white orange
o = orange
wg = white green
bl = blue
wbl = white blue
g = green
wbr = white brown
b = brown

Pin out for CAT-5 Plug

Make both ends the same (make both ends B): wo o wg bl wbl g wbr b

RJ45 for an ethernet jack

Ethernet is on 1-2-3-6

1=wo
2=o
3=wg
6=g

Crossover

1-3 and 2-6 are reversed (make one A end, one B end): order is 3 6 1 4 5 2 instead of 1 2 3 4 5 6

RJ11 Phone Jack

6-pair jack = 3 & 4
8-pair jack = 4 & 5

Two Jacks on CAT-5

Colors:
1 – 2 – 3 – 4 – 5 – 6 – 7 – 8
WO O WG BL WB G WBR BR

Jack 1:
1 – 2 – 3 – 4 – 5 – 6 – 7 – 8
WO O WG G

Jack 2:
1 – 2 – 3 – 4 – 5 – 6 – 7 – 8
WB B WBR BR

And here’s some good info.

Every time I reinstall SecureCRT I discover I’ve managed to lose my hotkey file. Below are those damn commands that I need all the time but don’t have memorized.

F1 r7

F2 whois -h whois.arin.net

F4 cp /usr/home/mushlette/temp.db /etc/namedb

F5 cd /etc/raddb\rvi users\r/#LISCO\r

F6 10yy9jpdwi

F7 \e:x\r

F9 whois -h whois.networksolutions.com

F11 kill -HUP `cat /var/run/named.pid`

F12 logout \r logout \r

The old Cobalt RAQ and RAQ4 servers had their own special quirks. Below are instructions for fixing a couple of the more common ones.
Continue reading Fixing Weird Things Cobalts Do →

List of telco numbers; to report trouble on circuits (LADS, EELs, UNEs, etc.)

AT & T 800-325-123
GTE Circuit Repair 800-483-2000
GTE Multi-Line 800-262-4831
GTE Bus. Office 800-483-2000
GTE Acct Rep 813-273-2927
INS 515-830-0440
INS 515-830-0496
ITS 877-905-4692
C & W Circuit Repair 800-663-9932
USWest-circuit repair 800 227 2218
USWest Telephone Repair 800-223-7508
UWest ISP Repair 800-660-8987
USWest Rep 800-879-6300 Ext 4348
UsWest Cir Enterprise 1-800-373-1368
IES 800-822-4348
Sprint Phone: 1-800-877-5045
Routing Phone: 1-800-232-6895 option 3
INS Pone: 515-830-0440 Option #1
Quest Switch People 888-678-7070 x31
Quest Ticket Center 800-233-7508 x21

Enabling and disabling FP extensions on Cobalt RAQ and RAQ4 boxen.
Continue reading FrontPage Extensions →

Administering mail.
Continue reading Admin Mail →

Troubleshooting mail problems.

Check an MX record

1. Open Madison
2. nslookup domain.com
3. nslookup – IP of primary DNS
4. set type=mx
5. domain.com
a. gives name of mail server
6. set type=soa (source of authority)
7. domain.com
8. exit

FORWARD MAIL TO ANOTHER ISP

1. cd /etc/namedb
2. vi domain.db
3. Change the first MX record from our mail server to mail.domain.com.
a. 86400 IN MX 5 mail.viskase-iowa.com.
4. Add a mail record with the mail host’s IP address:
a. mail 86400 IN A 12.21.92.59
5. Update serial number.
6. F11 and dbreload

Change status message on VM system.
Continue reading Number Nine →