Electronic Mail Addressing Post: 302433858

Sponsored Content

The Lounge What is on Your Mind? Electronic Mail Addressing Post 302433858 by Action on Wednesday 30th of June 2010 06:26:24 PM

06-30-2010

Registered User

Quote:

Originally Posted by bluescreen

When I was SA on 10 AT&T 3B2 systems, they used the BANG "!" in place of the AT "@". So a user's email address was: system!user

One caveat to this was there was no "DNS" back then and you had to know the route to the user's system. So when you sent an email, the "TO:" field looked something like this:

Code:

system4!system3!system2!system1!system!user

I know that form, it's UUCP, it was used with UNIX, and UNIX was property of AT&T. As fare as i can understand, it was time of Sendmail as the only MTA. Anyway, instead of always typing full routes email aliasing could be configured in system-wide alias file or user-own .mailrc file(s). System wide (/etc/aliases):

Code:

jimmi: host1!host2!host3!james

User-specific ($HOME/.mailrc):

Code:

alias jimmi host1!host2!host3!james

Mail forwarding could also be configured on central mail server, so that all the other hosts would be its clients in what has to do with email - all mail is submitted to the hub, and hub decides what mail goes to where and maintains all the aliases centrally. Of course, i don't know of your situation there, but that's how i imagine the solution of the problem with long routes.
The picture of 3B2-vme makes me recall of german MFA, it also had extension cards of such format.

Action

View Public Profile for Action

Find all posts by Action

4 More Discussions You Might Find Interesting

1. IP Networking

IP Addressing with Digital Unix

I'm trying to set up an IP address on a Digital Unix box. I would like to know the commands in order to do so. thanks

2. IP Networking

Dual IP addressing

I have a Unix application server with an internet IP address on it for a gateway and a Unix web server with the Internet IP as well configured for its gateway. Now the problem I have is this: due to these gateways, the application server can't communicate with our internal LAN. Therefore, it...

3. Programming

Memory addressing question

Forgive me if this sounds like a newbie question. Any time you obtain a stack address from a pointer, what is this relative to by default? Is it the extra segment, the stack segment, what? How do you change change the relative positioning in memory? Thanks in advance

4. IP Networking

Addressing question

This is probably a stupid question but I am finding a tricky issue on my Solaris machines right now. I changed the hostname for my servers as requested by my superior. I had one server that lost it's entire network configuration when I rebooted. I reconfigured it with it's address and I can...

LEARN ABOUT OSF1

ruptime

ruptime(1)						      General Commands Manual							ruptime(1)

NAME

       ruptime - Displays the status of each host on a network

SYNOPSIS

       ruptime [-ar] [-l  | -t	| -u]

       ruptime [-ar] [-l  | -t	| -u] [machinename]

       The ruptime command displays the status of each host on a local network that is running the rwhod daemon.

       If machinename is specified, only the status of that machine is displayed.

OPTIONS

       Includes all users.  Without this option, users whose sessions are idle an hour or more are not included.  Sorts the list by the load aver-
       age over 5-, 10-, and 15-minute intervals prior to a server's transmission.  The load averages are multiplied by 10 to represent the  value
       in decimal format.  Reverses the sort order.  Sorts the list by the length of uptime.  Sorts the list by the number of users.

DESCRIPTION

       The  status lines are sorted by hostname unless the -l, -t, or -u option is indicated. The status information is provided in packets broad-
       cast once every 3 minutes by each network host running rwhod. Any activity (such as the power to a host being turned on or off) that  takes
       place  between  broadcasts  is not reflected until the next broadcast. Hosts for which no status information is received for 11 minutes are
       reported as down.

EXAMPLES

       To get a status report on the hosts on the local network, enter: $ ruptime

	      Information  similar  to	the  following	 is   displayed:   host1     up   5:15, 	 4   users,    load   0.09,   0.04,   0.04
	      host2	up   7:45,	    3  users,	load  0.08,  0.07,  0.04  host3     up	 2:28,		0  users,   load  0.01, 0.02, 0.03
	      host4	up   3+01:44,  1 user,	 load 0.01, 0.02, 0.03 host7	 up   7:43,	     1 user,   load 0.06, 0.12, 0.11

	      (Output may be formatted differently on your system.)  To get a status report sorted by load average, enter: $ ruptime -l

	      Information  similar  to	the  following	 is   displayed:   host2     up   7:45, 	 3   users,    load   0.08,   0.07,   0.04
	      host1	up   5:18,	    4  users,	load  0.07,  0.07,  0.04  host7     up	 7:43,		1  user,    load  0.06, 0.12, 0.11
	      host3	up   2:28,	    0 users,  load 0.01, 0.02, 0.03 host4     up   3+01:44,  1 user,   load 0.01, 0.02, 0.03

	      (Output may be formatted differently on your system.)

FILES

       Indicates data files received from remote rwhod daemons.

SEE ALSO

       Commands:  rwho(1), rwhod(8)

																	ruptime(1)

4 More Discussions You Might Find Interesting

1. IP Networking

IP Addressing with Digital Unix

Discussion started by: lavelyj

2. IP Networking

Dual IP addressing

Discussion started by: Ronny

3. Programming

Memory addressing question

Discussion started by: stevenswj

4. IP Networking

Addressing question

Discussion started by: lnxjenn

LEARN ABOUT OSF1

ruptime