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Full Discussion: run a script at startup
Top Forums UNIX for Dummies Questions & Answers run a script at startup Post 302415249 by futi on Thursday 22nd of April 2010 07:29:19 AM
Old 04-22-2010
run a script at startup

hi,

i am using rhel 5, and i wanna run a script as soon as the operating system open. How can i do this ? ( i was reading rc.d files but i could not understand exactly what are the run levels and where should i put the my shell script.


my script will be :

Code:
#!/bin/ksh
iptables -I INPUT -p tcp -m tcp --dport 8080 -j ACCEPT
iptables -I INPUT -p tcp -m tcp --dport 1521 -j ACCEPT



---------- Post updated at 06:29 AM ---------- Previous update was at 04:49 AM ----------

i found it and it works :

Quote:
Here is how to fix this:
(Assume the name of my script is myscript)
1 – Copy your script into /etc/init.d folder
2 – cd /etc/init.d
3 – chmod +x myscript
4 – Add these lines, including #, right after #!/bin/bash or #!/bin/sh:
# chkconfig: 2345 95 20
# description: Some description
# What your script does (not sure if this is necessary though)
# processname: myscript
5 – chkconfig –level 2345 myscript on
 

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IPTABLES-XML(8) 														   IPTABLES-XML(8)

NAME
iptables-xml -- Convert iptables-save format to XML SYNOPSIS
iptables-xml [-c] [-v] DESCRIPTION
iptables-xml is used to convert the output of iptables-save into an easily manipulatable XML format to STDOUT. Use I/O-redirection pro- vided by your shell to write to a file. -c, --combine combine consecutive rules with the same matches but different targets. iptables does not currently support more than one target per match, so this simulates that by collecting the targets from consecutive iptables rules into one action tag, but only when the rule matches are identical. Terminating actions like RETURN, DROP, ACCEPT and QUEUE are not combined with subsequent targets. -v, --verbose Output xml comments containing the iptables line from which the XML is derived iptables-xml does a mechanistic conversion to a very expressive xml format; the only semantic considerations are for -g and -j targets in order to discriminate between <call> <goto> and <nane-of-target> as it helps xml processing scripts if they can tell the difference between a target like SNAT and another chain. Some sample output is: <iptables-rules> <table name="mangle"> <chain name="PREROUTING" policy="ACCEPT" packet-count="63436" byte-count="7137573"> <rule> <conditions> <match> <p>tcp</p> </match> <tcp> <sport>8443</sport> </tcp> </conditions> <actions> <call> <check_ip/> </call> <ACCEPT/> </actions> </rule> </chain> </table> </iptables-rules> Conversion from XML to iptables-save format may be done using the iptables.xslt script and xsltproc, or a custom program using libxsltproc or similar; in this fashion: xsltproc iptables.xslt my-iptables.xml | iptables-restore BUGS
None known as of iptables-1.3.7 release AUTHOR
Sam Liddicott <azez@ufomechanic.net> SEE ALSO
iptables-save(8), iptables-restore(8), iptables(8) Jul 16, 2007 IPTABLES-XML(8)
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