Screenshot April 11, 1995 at 21:48 of the desktop with a Filemaker window (•Brieffile, correspondence) on my Apple Macintosh PowerBook 160. A PICT file image that I recently gained access to.
Desktop shows icon (renamed) SLIP of the InterSLIP application I used to get modem access (phone line) to the Leiden University gateway to internet, email, news, gopher, ftp etc .
I wrote the protocol (two scripts) required by this SLIP application to get access to the Leiden University gateway to the internet.
From May 1995 Leiden University distributed my scripts to the other Macintosh users of our University.

Below the two scripts published May 18, 1995 ….

Below the ‘Minimal dialing script’ :

! Original script by Fred Morris
! Modifications and comments by Adam C. Engst
! 21-Feb-94 = Added redial feature (ACE)

@originate
! Initialize mode from string in InterSLIP configuration
note “Initializing modem”
write “^4\13”
pause 20
! Dial modem from number in InterSLIP configuration
note “Dialing ^1”
write “atdt^1\13”
! Check only for BUSY or CONNECT, then redial or connect
matchstr 1 10 “BUSY”
matchstr 2 20 “CONNECT”
matchread 500

@label 10
! The line is busy, so let’s redial the modem indefinitely
! This will also redial after the (matchread 500) timeout if you get
endless rings
note “Line busy, redialing ^1”
! First hang up and reinitialize modem from string in InterSLIP configuration
write “+++”
pause 60
write “ath\13”
write “^4\13”
! Then go back and dial again using phone number in InterSLIP configuration
jump originate

@label 20
! Everything worked fine, you’re connected now
note “Dialed successfully”
exit 0

@answer
@hangup
! Hang up the modem and reinitialize from string in InterSLIP configuration
! The only way to get here is to manually click the Disconnect button
note “Hanging up modem”
write “+++”
pause 60
write “ath\13”
write “^4\13”
exit 0

Below the “FullCRIgateScript” for access via 278282 with password and
username check:

! InterSLIP gateway script for CRIgate with password access
! original script by Adam C. Engst
! modified by MvdBurg@RULLF2.MedFac.LeidenUniv.NL (MPM van der Burg)
!
@originate
!write “\13”
note “Waiting for prompt”
matchclr
matchstr 1 1 “Annex username: “
matchread 900
note “Gateway not responding!”
exit -1
!
@label 1
note “Sending user name”
write “^5\13”
matchclr
matchstr 1 2 “Annex password:”
matchread 900
note “Gateway not responding!”
exit -1
!
!
@label 2
note “Sending password”
write “^6\13”
matchclr
matchstr 1 4 “Permission granted”
matchstr 2 3 “Username/Password Incorrect”
matchread 900
jump 99
!
@label 3
note “Username/Password Incorrect”
jump 99
!
@label 4
note “Requesting SLIP”
matchclr
matchstr 1 5 “drive-in: “
matchread 900
jump 99
!
@label 5
write “slip\13”
matchclr
matchstr 1 10 “Switching to SLIP.”
matchstr 2 6 “CLI: Command not found.”
matchread 900
note “Cannot invoke SLIP mode”
jump 99
!
@label 6
note “Command not found”
jump 99
!
@label 10
note “Searching IP address”
matchclr
matchstr 1 25 “Your address is “
matchread 900
note “No AddressLine found”
jump 99
!
@label 25
note “SLIP address found”
matchclr
matchexp 1 30 “[0-9][0-9]\.[0-9][0-9]\.[0-9][0-9]\.[0-9][0-9]\.”
matchread 500
note “No IP address found”
jump 99
!
@label 99
pause 1
pause 60
exit -1
!
! We’ve found an IP address, so inform MacTCP of it.
!
@label 30
note “Setting IP address”
setip “^0”
note “^0”
Pause 30
write “set port internet slip enable”
write “\13”
!
note “Slip enabled”
pause 20
!
matchclr
exit 0

!
! Answer and Hangup modes are currently unused in gateway
! scripts, but just for future compatibility, exit successfully.
!
@answer
@hangup
! Hang up the modem and reinitialize from string in InterSLIP configuration
! The only way to get here is to manually click the Disconnect button
note “Hanging up modem”
write “+++”
pause 60
write “ath\13”
write “^4\13”
exit 0

TAGs :
#coding #script #modem #dial #Leiden #University #SLIP #Apple #Powerbook #Mosaic #internet #history #desktop #intransition

Citation info : Coding 1995 Internet Access Macintosh • Michel van der Burg • Miracles•Media • @1MEMO 20250515 • TakeNode • URL 1-memo.com/2025/05/15 •