10-21-2008
This thread is moving pretty far away from the forum rules, so I'll close it.
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi,
I am new to this forum and unix too. I have just started learning unix. As I was going through the first chapter, I read that unix is multitasking, multiprogramming, multiprocessing and multiuser OS.
My question is: Is there any difference between a TASK and a PROCESS. How are PROCESS... (2 Replies)
Discussion started by: hana
2 Replies
2. Shell Programming and Scripting
I have a file contains
TASK gsnmpproxy {
CommandLine = $SMCHOME/bin/gsnmpProxy.exe
}
TASK gsnmpdbgui {
CommandLine = $SMCHOME/bin/gsnmpdbgui.exe
I would like to comment and than uncomment specific task eg TASK gsnmpproxy
Pls suggest how to do in shell script (9 Replies)
Discussion started by: madhusmita
9 Replies
3. Shell Programming and Scripting
I have an task definition listing xml file that contains a list of tasks such as
<TASKLIST
<TASK definition="Completion date" id="Taskname1" Some other
<CODE name="Code12"
<Parameter pname="Dog" input="5.6" units="feet" etc /Parameter>
<Parameter... (3 Replies)
Discussion started by: MissI
3 Replies
4. Programming
believe it or not but this is my first c program (i've worked with java, C#, php though) I am trying to make a daemon that checks if mplayer is running(it's for a projection room) and if it is not then to run mplayer with a file.. So far it's not working and I don't know why
Help and comments... (5 Replies)
Discussion started by: james2432
5 Replies
5. Boot Loaders
Hello,
I have kubuntu on my laptop and now I decided to switch to Windows 7. I made the bios settings properly (first choice is boot from cd\vd) but I see the error
" reboot and select proper Boot device or insert Boot media in select Boot device and press a key "
I have tried CD and... (0 Replies)
Discussion started by: rpf
0 Replies
6. Shell Programming and Scripting
hi,
infile-
create table salary
( occupation_code char(40),
earnings decimal(10,2),
occ_yearend integer
);
outfile-
salary:create table salary
salary:( occupation_code char(40),
salary: earnings decimal(10,2),
salary: occ_yearend integer
salary:);
Thanks. (4 Replies)
Discussion started by: dvah
4 Replies
7. Shell Programming and Scripting
Hi all,
I'm newbie and stuck here. Thanks for any help.
Input(txt file)
a b X
c d Y
e f Z
g h W
Requested output:
a b X Y
c d Y X
e f Z W
g h W Z
Please use code tags when posting data and code samples! (10 Replies)
Discussion started by: hernand
10 Replies
8. Shell Programming and Scripting
Hi experts,
I have a problem with the below shell task:
I need to modify the file creatin a paired row , per each row
which matches filter (e.g. number of nonempty columns = 5)
Output should look like this:
second row is original one from the input,
first row(red) is pairing row, it's... (29 Replies)
Discussion started by: hernand
29 Replies
9. Homework & Coursework Questions
I have a simple task for my school work. I'm new with unix, so i need help.
I need to write a scenario. Task is. From created txt file read first 3 words and create a 3 catalogs with those 3 words. 2 of those new catalogs should be transferred to other directory. If someone could help me just... (1 Reply)
Discussion started by: justynykas
1 Replies
LEARN ABOUT LINUX
tcprules
tcprules(1) General Commands Manual tcprules(1)
NAME
tcprules - compile rules for tcpserver
SYNOPSIS
tcprules rules.cdb rules.tmp
OVERVIEW
tcpserver optionally follows rules to decide whether a TCP connection is acceptable. For example, a rule of
18.23.0.32:deny
prohibits connections from IP address 18.23.0.32.
tcprules reads rules from its standard input and writes them into rules.cdb in a binary format suited for quick access by tcpserver.
tcprules can be used while tcpserver is running: it ensures that rules.cdb is updated atomically. It does this by first writing the rules
to rules.tmp and then moving rules.tmp on top of rules.cdb. If rules.tmp already exists, it is destroyed. The directories containing
rules.cdb and rules.tmp must be writable to tcprules; they must also be on the same filesystem.
If there is a problem with the input, tcprules complains and leaves rules.cdb alone.
The binary rules.cdb format is portable across machines.
RULE FORMAT
A rule takes up one line. A file containing rules may also contain comments: lines beginning with # are ignored.
Each rule contains an address, a colon, and a list of instructions, with no extra spaces. When tcpserver receives a connection from that
address, it follows the instructions.
ADDRESSES
tcpserver starts by looking for a rule with address TCPREMOTEINFO@TCPREMOTEIP. If it doesn't find one, or if TCPREMOTEINFO is not set, it
tries the address TCPREMOTEIP. If that doesn't work, it tries shorter and shorter prefixes of TCPREMOTEIP ending with a dot. If none of
them work, it tries the empty string.
For example, here are some rules:
joe@127.0.0.1:first
18.23.0.32:second
127.:third
:fourth
::1:fifth
If TCPREMOTEIP is 10.119.75.38, tcpserver will follow the fourth instructions.
If TCPREMOTEIP is ::1, tcpserver will follow the fifth instructions. Note that you cannot detect IPv4 mapped addresses by matching
"::ffff", as those addresses will be converted to IPv4 before looking at the rules.
If TCPREMOTEIP is 18.23.0.32, tcpserver will follow the second instructions.
If TCPREMOTEINFO is bill and TCPREMOTEIP is 127.0.0.1, tcpserver will follow the third instructions.
If TCPREMOTEINFO is joe and TCPREMOTEIP is 127.0.0.1, tcpserver will follow the first instructions.
ADDRESS RANGES
tcprules treats 1.2.3.37-53:ins as an abbreviation for the rules 1.2.3.37:ins, 1.2.3.38:ins, and so on up through 1.2.3.53:ins. Similarly,
10.2-3.:ins is an abbreviation for 10.2.:ins and 10.3.:ins.
INSTRUCTIONS
The instructions in a rule must begin with either allow or deny. deny tells tcpserver to drop the connection without running anything.
For example, the rule
:deny
tells tcpserver to drop all connections that aren't handled by more specific rules.
The instructions may continue with some environment variables, in the format ,VAR="VALUE". tcpserver adds VAR=VALUE to the current envi-
ronment. For example,
10.0.:allow,RELAYCLIENT="@fix.me"
adds RELAYCLIENT=@fix.me to the environment. The quotes here may be replaced by any repeated character:
10.0.:allow,RELAYCLIENT=/@fix.me/
Any number of variables may be listed:
127.0.0.1:allow,RELAYCLIENT="",TCPLOCALHOST="movie.edu"
SEE ALSO
tcprulescheck(1), tcpserver(1), tcp-environ(5)
tcprules(1)