Hi, Guys ...
I want to know how to use to 2 processes (A & B) communicating with each others through 2 pipes (Pipe1 & Pinpe2) :
such that process A write to Pipe1 and Process B read from Pipe1
and process B write to Pipe2 and Process A read from Pipe2 .
Does anyone have an idea about... (1 Reply)
I'd like to make a script that I can execute every time I sign on to my linux box that keeps track of the time and allows to me to add a remark to a file. So basically once I log in, I run the script, and it outputs the date and time to a text file (log.txt). But that isn't my problem.
I need... (1 Reply)
I am using system running on red hat linux 4.
I had connected health measuring machine to the serial port and configured it
stty -F /dev/ttyS0 9600 -parenb cs8 -cstopb
this machine requires a command to be passed to it for giving output. I am unable to pass command hexa format(0x68) to the... (4 Replies)
Hello,
I would like to know if it is possible to communicate between two terminals on seperate computers for free - e.g. not using proprietary software or using the built in UNIX terminals on operating systems of the UNIX flavor.
Thanks,
photray94 (2 Replies)
i want to know that my serial port ( pci slot with 2 port ) is working fine and communicating
is there any way to know the serialport is working and communicating?
please help (3 Replies)
Hello!
I am working on an application which reads environmental instruments which have serial ports. The application requires a serial port to be present to talk to the device (i.e. /dev/ttyS0 ). In some instances the environmental devices will be 100's of yards away from the computer, so a... (5 Replies)
$./a.out smtp.gmail.com 25
220 mx.google.com ESMTP 9sm2923369yxf.23
250 mx.google.com at your service
220 2.0.0 Ready to start TLS
after handshake
Common Name: smtp.gmail.com
after get cert dn
-----BEGIN SSL SESSION PARAMETERS-----... (0 Replies)
This is my situation
DOS pc serial cable (sl0) Linux Pc eth1
192.168.0.10 <-------------------->192.168.0.2 <------------>192.168.0.1 (router)
I connected the linux pc and the dos pc with a SLIP (serial line internet protocol), so they can communicate in the sl0 interface.
... (3 Replies)
I have a simple client/server program I am using for learning purposes.
I have it setup so that after server is setup and listening it than goes into a loop where it accepts incoming client connections. After each connection, the client socket is than passed to a thread routine where it can be... (3 Replies)
Hi there,
I have a Debian server (192.168.1.1) connected through ethernet to a RS232 device servers (192.168.1.5) that is then connected through RS232 to a Video Projector.
The idea is that I want to send commands to the video projector (eg. turn on/off) via the device server.
According to... (4 Replies)
Discussion started by: chebarbudo
4 Replies
LEARN ABOUT PLAN9
ppp
PPP(1) General Commands Manual PPP(1)NAME
pppclient, pppserver - point to point protocol
SYNOPSIS
pppclient [ -d ][ -b baudrate ][ -i myipaddr ][ -p peeripaddr ][ dialdevice ]
pppserver [ -d ] ndev myipaddr firstipaddr firstdev [ baud0 baud1 ... ]
DESCRIPTION
The Point to Point Protocol is used to encapsulate Internet Protocol packets for transfer over serial lines or other protocol connections.
Pppclient makes a connection to a PPP server and passes IP packets over the connection. If dialdevice is omitted, standard input and out-
put are used as the connection. If dialdevice begins with a slash, pppclient assumes it is a file name, open(2)'s it, and uses the result
as the connection. Otherwise, dialdevice is passed as the destination address to dial(2) to set up the connection.
If the connection is successful, pppclient creates a pipe, pushes the IP line discipline onto it, and sets the local and remote addresses
of the IP interface to myipaddr and peeripaddr. It then loops transferring packets between the pipe and the connection. If either myi-
paddr or peeripaddr is omitted, pppclient requests them from the server.
The options are
d print debugging information.
b baud rate of the serial line.
p peer ip address (in case the peer asks for its ip address over IPCP).
i the local ip address to be established for this connection.
Pppserver treats serial lines as PPP connections, switching packets between them and the local machine. It creates a pipe for a local IP
interface (address myipaddr), opens a set of serial lines, and switches packets between the local interface and the serial lines. Ndev
specifies the number of serial devices to serve. The devices are named /dev/eia{firstdev} through /dev/eia{firstdev+ndev-1}. Their remote
IP addresses are firstipaddr through firstipaddr+ndev-1. The default baud rate is 9600. If any arguments follow firstdev (baud0, baud1,
...), they are used as baud rates for the serial lines. The only option, -d, turns on debugging output.
Both pppclient and pppserver accept all options defined in RFCs 1331 and 1332.
EXAMPLES
Start up a server for serial lines /dev/eia[2-6] with remote IP addresses 131.107.1.100 through 131.107.1.103 and baud rates of 19200,
2400, 9600, 9600. The local IP address is 131.107.1.1.
pppserver 4 131.107.1.1 131.107.1.100 2 19200 2400
SOURCE
/sys/src/cmd/ppp
PPP(1)