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Top Forums Shell Programming and Scripting Problems with "write" and "wall" Post 302719837 by 123_abc on Tuesday 23rd of October 2012 09:06:14 AM
Old 10-23-2012
Problems with "write" and "wall"

Hello,
I am using VirtualBox to simulate a small network with two Linux computers, the host is Mac OS X. My problem is that I can't send "write" and "wall" messages from the host to one of those Linux computers.

Here is what works:
- The virtual Linux computer answers "ping" messages that have been sent from the Mac OS X host.
- Both computers can ping the router.
- The virtual Linux computer can ping internet hosts like 173.194.34.136.

Here is what doesn't work:
- I can't send "write" and "wall" messages from the host to the Linux guest computer and vice versa.
- The wall commands are dispatched, but not received.
- The write command doesn't work as expected, because I'm a receiving a
" user1 is not logged in on pts/2" although user1 is logged in
in pts/2 (the Linux computer).


Here are my Linux cable connection settings:
IP-address: 192.168.0.102
Netmask: 255.255.255.0
Router/Gateway-IP: 192.168.0.1
DNS-Server: 192.168.0.1

Here are my network settings in VirtualBox for this Linux installation:
- Bridged networking
- PCnet-FAST III
- Promiscuous mode: for all VMS and host

What might be going wrong here? Smilie
 

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PRIPS(1)						    BSD General Commands Manual 						  PRIPS(1)

NAME
prips -- print the IP addresses in a given range SYNOPSIS
prips [-c] [-d delim] [-e exclude] [-f format] [-i incr] start end prips [-c] [-d delim] [-e exclude] [-f format] [-i incr] CIDR-block prips -h DESCRIPTION
The prips tool can be used to print all of the IP addresses in a given range. It can enhance tools that only work on one host at a time, e.g. whois(1). The prips tool accepts the following command-line options: -c Print the range in CIDR notation. -d delim Set the delimiter to the character with ASCII code delim where 0 <= delim <= 255. -e <x.x.x,x.x> Exclude ranges from the output. -f format Set the format of addresses (hex, dec, or dot). -h Show summary of options. -i incr Set the increment to 'x'. ENVIRONMENT
The prips tool's operation is not influenced by any environment variables. FILES
The prips tool's operation is not influenced by any files. EXAMPLES
Display all the addresses in a reserved subnet: prips 192.168.32.0 192.168.32.255 The same, using CIDR notation: prips 192.168.32/24 Display only the usable addresses in a class A reserved subnet using a space instead of a newline for a delimiter: prips -d 32 10.0.0.1 10.255.255.255 Display every fourth address in a weird block: prips -i 4 192.168.32.7 192.168.33.5 Determine the smallest CIDR block containing two addresses: prips -c 192.168.32.5 192.168.32.11 DIAGNOSTICS
The prips utility exits 0 on success, and >0 if an error occurs. SEE ALSO
ipsc(1), gipsc(1) STANDARDS
No standards were harmed in the writing of the prips tool. HISTORY
The prips tool was originally written by Daniel Kelly and later adopted by Peter Pentchev. This manual page was originally written by Juan Alvarez for the Debian GNU/Linux system and later added to the prips distribution and converted to mdoc format by Peter Pentchev. AUTHORS
Daniel Kelly <dan@vertekcorp.com> Juan Alvarez <jalvarez@fluidsignal.com> Peter Pentchev <roam@ringlet.net> BUGS
Please report any bugs in the prips tool to its current maintainer, Peter Pentchev. BSD
March 1, 2011 BSD
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