Re: dhclient-exit-hooks
(Apologies for the rather fragmentary nature of this post - I've been typing and reading the scripts and man pages, trying to get my head round what's going on...) On Wed, May 03, 2006 at 05:43:48PM -0400, fbsd wrote: I figured the Shared object not found error is another sign of what is wrong in general so I commented out the mail command to concentrate on just the logger problem. Fair enough - we'll come back to this later! During testing the logger problem I determined the script if statement is not working. It ought to - the test is structured correctly, so I can't see any reason it would not behave in any way other than you would expect. Problem seems more like bug in how and or when during the boot process the script is getting executed. Yeah, it's beginning to look like it, isn't it? Did you try running it with xtrace turned on? Perhaps you could even try running rc under xtrace? (I have done this in the past, it spews forth a great deal of noise, but among the noise you may find what you are looking for.) This has nothing to do with my script code. This is how FreeBSD is handling the default dhclient-script that comes pre installed on the system. The recorder directives have made no difference. Yep, that makes sense - now I understand where your code is being called from. Please note I am not using the isc-dhcp port dhclient. I am running the dhclient that comes as part of the base install of FreeBSD. Noted. I have ifconfig_dc0=DHCP in rc.conf to launch /sbin/dhclient-script. dhclient-script calls dhclient-exit-hooks I don't think the recorder directives get into play because dhclient does not use the rc.d environment. No, not the ones you added to the dhclient-exit-hooks, but dhclient is started by this block of code in /etc/network.subr: if dhcpif $1; then if [ $_cfg -ne 0 ] ; then ifconfig $1 up fi /etc/rc.d/dhclient start $1 _cfg=0 fi (dhcpif() tests the value of $1, returning true if it is DHCP or dhcp or any combination in mixed case) /etc/network.subr gets called from /etc/rc.d/netif (among others, but it is netif that is called earliest, I believe). /etc/rc.d/dhclient does use rcorder, although you are right in that /sbin/dhclient doesn't know anything about it. As far as I can tell, the sequence of events is something like this: rc builds a list of files to run, using rcorder(8) These scripts run, occasionally calling in other helper scripts (such as /etc/network.subr). When netif is called, it calls network.subr, which calls /etc/rc.d/dhclient as necessary. /etc/rc.d/dhclient starts /sbin/dhclient, which in turn calls /sbin/dhclient-script at various points in its execution. /sbin/dhclient-script then calls the enter and exit hooks at the appropriate times. I know the dhclient-exit-hooks script is executing because of the echo commands I put in it before and after the IF statement. Yep, that's fair comment. I also know the dhclient variables are being loaded in the /etc/dhcpd.name-servers file because I empty it before rebooting system, and after words I edit it and it contains the correct values. Which suggests that your code is indeed Doing the Right Thing. I am beginning to think that something changed between 4.x and 6.0 in the way the dhclient-script get processed during boot. It's acting like it gets executed to early in the boot process. Do I have enough evidence on this to submit a bug report??? I reckon it's worth trying under xtrace to see if that provides any clue. You could also try adding -s to the logger call, so it prints its messages to STDERR as well as to the nominated log file. Dan -- Daniel Bye PGP Key: ftp://ftp.slightlystrange.org/pgpkey/dan.asc PGP Key fingerprint: D349 B109 0EB8 2554 4D75 B79A 8B17 F97C 1622 166A _ ASCII ribbon campaign ( ) - against HTML, vCards and X - proprietary attachments in e-mail / \ pgpcKvJGJmCSp.pgp Description: PGP signature
RE: dhclient-exit-hooks
Today I installed the isc-dhcp-client package. It installs a completlly different dhclient-script. One that looks like it matchhes what your begin/exit scripts are designed to work with. # base version /etc/dhclient-exit-hooks /etc/dhclient-exit-hooks.sav /etc/dhclient.conf /sbin/dhclient /sbin/dhclient-script # port version /etc/rc.d/dhclient /usr/local/etc/dhclient.conf /usr/local/etc/dhclient.conf.sample /usr/local/sbin/dhclient /usr/local/sbin/dhclient-script At the end of the pkg install it says this. To setup dhclient, you may need to edit /etc/rc.conf to replace the base system dhclient, such as : dhcp_program=/usr/local/sbin/dhclient dhcp_flags=-q When I boot with this in my rc.conf dhcp_program=/usr/local/sbin/dhclient dhcp_flags=-q# no banner background_dhclient=YES # Start dhcp client in the background. ifconfig_dc0=DHCP I get these error messages over and over. Have to reboot in single user mode to edit rc.conf to fix. Can't bind to dhcp address: Address already in use Please make sure there is no other dhcp server running and that there's no entry for dhcp or bootp in /etc/inetd.conf. Also make sure you are not running HP JetAdmin software, which includes a bootp server. When I boot with the same rc.conf content execpt with #ifconfig_dc0=DHCP commented out, I do not get ip address from dhcp server. Next run I edited the pkg version of /usr/local/etc/dhclient.conf and added 'interface dc0' to it and rebooted and got same results. I think this is another indicator of a bug with the base dhclient and that this bug makes the pkg version unusable. How do I turn on this xtrace you talk about to capture the rc.conf boot process? I can not find man xtrace. There is a ktrace. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: dhclient-exit-hooks
On Thu, May 04, 2006 at 10:41:05AM -0400, fbsd wrote: Today I installed the isc-dhcp-client package. 'K. Hope you have better luck. I have never used it, so don't know anything about it. I think this is another indicator of a bug with the base dhclient and that this bug makes the pkg version unusable. Yep, it certainly seems that something funky is going on. How do I turn on this xtrace you talk about to capture the rc.conf boot process? I can not find man xtrace. There is a ktrace. No, it's a shell feature. You enable it by editing your shebang, so it looks like this: #!/bin/sh -x Or for interactive use, you can run it like this: # sh -x /path/to/your/script Sorry dude, I am now completely out of ideas. I hope you get it sorted. Dan -- Daniel Bye PGP Key: ftp://ftp.slightlystrange.org/pgpkey/dan.asc PGP Key fingerprint: D349 B109 0EB8 2554 4D75 B79A 8B17 F97C 1622 166A _ ASCII ribbon campaign ( ) - against HTML, vCards and X - proprietary attachments in e-mail / \ pgpuedjx4x2cq.pgp Description: PGP signature
RE: dhclient-exit-hooks
I changed #! /bin/sh to #!/bin/sh it had no effect. Logger command still not producing output. using sendmail to construct the email made no difference. Still get this message /libexec/ld-elf.so.1: Shared object libpcre.so.0 not found, required by send-mail -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Norbert Papke Sent: Tuesday, May 02, 2006 9:47 PM To: [EMAIL PROTECTED] Cc: freebsd-questions@freebsd.org Subject: Re: dhclient-exit-hooks On Tuesday 02 May 2006 06:12, fbsd wrote: IF I execute the cat command to issue the notification email from the command line it works fine, but when used in the script I get these messages during boot process. I am running postfix launched by the sendmail wrappers on a FreeBSD 6.0 system. ~/.mailrc: No match. Use sendmail(8) rather than mail(1). mail(1) expects to be run from a user session and looks for the user's preferences stored in the user's ,mailrc file. No user is available during the boot process. In your script, #! /bin/sh Also, try removing the space between #! and /bin/sh. It may be causing some weirdness. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: dhclient-exit-hooks
On Wed, May 03, 2006 at 08:07:39AM -0400, fbsd wrote: I changed #! /bin/sh to #!/bin/sh it had no effect. Logger command still not producing output. using sendmail to construct the email made no difference. Still get this message /libexec/ld-elf.so.1: Shared object libpcre.so.0 not found, required by send-mail Try putting something like this in your script file: # PROVIDE: your_script_service # REQUIRE: SERVERS If my understanding is correct, this should ensure that your script will not be called until after the dummy dependency SERVERS is run, which requires that ldconfig has already run. Note: not tested, not even sure it'll work, but it can't hurt to try. In any event, rcorder(8) might help. Dan -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Norbert Papke Sent: Tuesday, May 02, 2006 9:47 PM To: [EMAIL PROTECTED] Cc: freebsd-questions@freebsd.org Subject: Re: dhclient-exit-hooks On Tuesday 02 May 2006 06:12, fbsd wrote: IF I execute the cat command to issue the notification email from the command line it works fine, but when used in the script I get these messages during boot process. I am running postfix launched by the sendmail wrappers on a FreeBSD 6.0 system. ~/.mailrc: No match. Use sendmail(8) rather than mail(1). mail(1) expects to be run from a user session and looks for the user's preferences stored in the user's ,mailrc file. No user is available during the boot process. In your script, #! /bin/sh Also, try removing the space between #! and /bin/sh. It may be causing some weirdness. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] -- Daniel Bye PGP Key: ftp://ftp.slightlystrange.org/pgpkey/dan.asc PGP Key fingerprint: D349 B109 0EB8 2554 4D75 B79A 8B17 F97C 1622 166A _ ASCII ribbon campaign ( ) - against HTML, vCards and X - proprietary attachments in e-mail / \ pgpg8lWu8kCaE.pgp Description: PGP signature
RE: dhclient-exit-hooks
What goes in your_script_service? Is it suppose to be script name dhclient-exit-hooks? Is the # comment char to be removed? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Daniel Bye Sent: Wednesday, May 03, 2006 11:42 AM To: freebsd-questions@freebsd.org Subject: Re: dhclient-exit-hooks On Wed, May 03, 2006 at 08:07:39AM -0400, fbsd wrote: I changed #! /bin/sh to #!/bin/sh it had no effect. Logger command still not producing output. using sendmail to construct the email made no difference. Still get this message /libexec/ld-elf.so.1: Shared object libpcre.so.0 not found, required by send-mail Try putting something like this in your script file: # PROVIDE: your_script_service # REQUIRE: SERVERS If my understanding is correct, this should ensure that your script will not be called until after the dummy dependency SERVERS is run, which requires that ldconfig has already run. Note: not tested, not even sure it'll work, but it can't hurt to try. In any event, rcorder(8) might help. Dan -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Norbert Papke Sent: Tuesday, May 02, 2006 9:47 PM To: [EMAIL PROTECTED] Cc: freebsd-questions@freebsd.org Subject: Re: dhclient-exit-hooks On Tuesday 02 May 2006 06:12, fbsd wrote: IF I execute the cat command to issue the notification email from the command line it works fine, but when used in the script I get these messages during boot process. I am running postfix launched by the sendmail wrappers on a FreeBSD 6.0 system. ~/.mailrc: No match. Use sendmail(8) rather than mail(1). mail(1) expects to be run from a user session and looks for the user's preferences stored in the user's ,mailrc file. No user is available during the boot process. In your script, #! /bin/sh Also, try removing the space between #! and /bin/sh. It may be causing some weirdness. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] -- Daniel Bye PGP Key: ftp://ftp.slightlystrange.org/pgpkey/dan.asc PGP Key fingerprint: D349 B109 0EB8 2554 4D75 B79A 8B17 F97C 1622 166A _ ASCII ribbon campaign ( ) - against HTML, vCards and X - proprietary attachments in e-mail / \ ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: dhclient-exit-hooks
On Wed, May 03, 2006 at 12:17:00PM -0400, fbsd wrote: What goes in your_script_service? Is it suppose to be script name dhclient-exit-hooks? Yes. Sorry, hadn't been paying due attention, otherwise I would have put 'dhclient-exit-hooks' ;-) Is the # comment char to be removed? No - leave them in. Take a look at some of the scripts in /etc/rc.d/ and /usr/local/etc/rc.d/ Dan -- Daniel Bye PGP Key: ftp://ftp.slightlystrange.org/pgpkey/dan.asc PGP Key fingerprint: D349 B109 0EB8 2554 4D75 B79A 8B17 F97C 1622 166A _ ASCII ribbon campaign ( ) - against HTML, vCards and X - proprietary attachments in e-mail / \ pgpkgbwkztiiG.pgp Description: PGP signature
RE: dhclient-exit-hooks
Added this and still no joy. # PROVIDE: 'dhclient-exit-hooks' # REQUIRE: SERVERS As a side bar. This problem started in 6.0 I think. I only ran 5.4 for short time before going to 6.0 But I do know I did not have this problem in 3.x and 4.x versions. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Daniel Bye Sent: Wednesday, May 03, 2006 12:22 PM To: Daniel Bye; freebsd-questions@freebsd.org Subject: Re: dhclient-exit-hooks On Wed, May 03, 2006 at 12:17:00PM -0400, fbsd wrote: What goes in your_script_service? Is it suppose to be script name dhclient-exit-hooks? Yes. Sorry, hadn't been paying due attention, otherwise I would have put 'dhclient-exit-hooks' ;-) Is the # comment char to be removed? No - leave them in. Take a look at some of the scripts in /etc/rc.d/ and /usr/local/etc/rc.d/ Dan -- Daniel Bye PGP Key: ftp://ftp.slightlystrange.org/pgpkey/dan.asc PGP Key fingerprint: D349 B109 0EB8 2554 4D75 B79A 8B17 F97C 1622 166A _ ASCII ribbon campaign ( ) - against HTML, vCards and X - proprietary attachments in e-mail / \ ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: dhclient-exit-hooks
On 5/3/06, fbsd [EMAIL PROTECTED] wrote: I changed #! /bin/sh to #!/bin/sh it had no effect. Logger command still not producing output. using sendmail to construct the email made no difference. Still get this message /libexec/ld-elf.so.1: Shared object libpcre.so.0 not found, required by send-mail Did you rebuild the package? I have had a similar problem with, in my case, net-snmp. Reinstalling the port fixed it. Something about statically linked libraries I think. -- -- Perfection is just a word I use occasionally with mustard. --Atom Powers-- ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: dhclient-exit-hooks
On Wed, May 03, 2006 at 12:52:07PM -0400, fbsd wrote: Added this and still no joy. # PROVIDE: 'dhclient-exit-hooks' # REQUIRE: SERVERS I'm sure it won't fix the problem, but you shouldn't include the quotes around the term for # PROVIDE:. Also, I think the rcorder block needs a blank line before and after it to be parsed properly by rcorder at startup. As a side bar. This problem started in 6.0 I think. I only ran 5.4 for short time before going to 6.0 But I do know I did not have this problem in 3.x and 4.x versions. If these suggestions don't help, I'm afraid I'm out of ideas, sorry. Dan -- Daniel Bye PGP Key: ftp://ftp.slightlystrange.org/pgpkey/dan.asc PGP Key fingerprint: D349 B109 0EB8 2554 4D75 B79A 8B17 F97C 1622 166A _ ASCII ribbon campaign ( ) - against HTML, vCards and X - proprietary attachments in e-mail / \ pgplzQ5ZtQpNf.pgp Description: PGP signature
RE: dhclient-exit-hooks
There is nothing to rebuild. I am using the built in dhclient that comes with the system. -Original Message- From: Atom Powers [mailto:[EMAIL PROTECTED] Sent: Wednesday, May 03, 2006 1:05 PM To: [EMAIL PROTECTED] Cc: Norbert Papke; freebsd-questions@freebsd.org Subject: Re: dhclient-exit-hooks On 5/3/06, fbsd [EMAIL PROTECTED] wrote: I changed #! /bin/sh to #!/bin/sh it had no effect. Logger command still not producing output. using sendmail to construct the email made no difference. Still get this message /libexec/ld-elf.so.1: Shared object libpcre.so.0 not found, required by send-mail Did you rebuild the package? I have had a similar problem with, in my case, net-snmp. Reinstalling the port fixed it. Something about statically linked libraries I think. -- -- Perfection is just a word I use occasionally with mustard. --Atom Powers-- ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: dhclient-exit-hooks
On Wed, May 03, 2006 at 02:25:08PM -0400, fbsd wrote: There is nothing to rebuild. I am using the built in dhclient that comes with the system. But it's not dhclient that's emitting the error, is it? It's your MTA. (check in /etc/mail/mailer.conf, and you will see that send-mail is an alias for the binary of your MTA) Atom's suggestion is worth pursuing. Dan -Original Message- From: Atom Powers [mailto:[EMAIL PROTECTED] Sent: Wednesday, May 03, 2006 1:05 PM To: [EMAIL PROTECTED] Cc: Norbert Papke; freebsd-questions@freebsd.org Subject: Re: dhclient-exit-hooks On 5/3/06, fbsd [EMAIL PROTECTED] wrote: I changed #! /bin/sh to #!/bin/sh it had no effect. Logger command still not producing output. using sendmail to construct the email made no difference. Still get this message /libexec/ld-elf.so.1: Shared object libpcre.so.0 not found, required by send-mail Did you rebuild the package? I have had a similar problem with, in my case, net-snmp. Reinstalling the port fixed it. Something about statically linked libraries I think. -- -- Perfection is just a word I use occasionally with mustard. --Atom Powers-- ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] -- Daniel Bye PGP Key: ftp://ftp.slightlystrange.org/pgpkey/dan.asc PGP Key fingerprint: D349 B109 0EB8 2554 4D75 B79A 8B17 F97C 1622 166A _ ASCII ribbon campaign ( ) - against HTML, vCards and X - proprietary attachments in e-mail / \ pgpOzKIawEEOF.pgp Description: PGP signature
RE: dhclient-exit-hooks
I do not see why postfix would have any thing to do with logger not working. I added some ehco statments to test if the if statment is working. In this pass /etc/dhcpd.name-servers.tmp = /etc/dhcpd.name-servers so the second echo should not have been executed, but it was From testing it looks like only the dhcpc variables plus mv, and echo commands work in the script. from the boot log dc0: link state changed to DOWN dc0: no link dc0: link state changed to UP got link dc0: link state changed to DOWN before if check after if check DHCPREQUEST on dc0 to 255.255.255.255 port 67 dc0: link state changed to UP DHCPACK from 10.0.10.2 dc0: link state changed to DOWN bound to 10.0.10.4 -- renewal in 43200 seconds. and here is the dhclient-exit-hooks script #!/bin/sh # PROVIDE: dhclient-exit-hooks # REQUIRE: SERVERS ### Start of refresh dhcpd dns ip # This script will propagate to dhcpd the changed dns servers ip address # which dhcp-client puts in resolv.conf. # # In dhcpd.conf replace the option domain-name-servers line with this # # include /etc/dhcpd.name-servers; # # Spript uses the dhcpc variables to build temp line in dhcpd format. # Then compare temp content to production content. # If different replace production content with new content from temp, # and restart dhcp to reread dhcpd.conf containing new ISP dns ip addresses. # # logging event and sending email to user root is optional. # # Note: All LAN machines using dhcpd will not get new ISP dns ip addresses # until they reboot or their lease comes up for renewal. # # Each of the following lines must be one long line. IE: no wrap arounds # load my_domain_name_servers variable with ISP dns ip addresses from dhcpc my_domain_name_servers=`echo $new_domain_name_servers | sed -e 's/ /, /g'` # Create single line in file to be included in dhcpd.conf echo option domain-name-servers $my_domain_name_servers ; /etc/dhcpd.name-servers.tmp echo before if check # See if different from what production file contains cmp -s /etc/dhcpd.name-servers.tmp /etc/dhcpd.name-servers if [ $? -gt 0 ]; then echo after if check # move the new file into place mv /etc/dhcpd.name-servers.tmp /etc/dhcpd.name-servers # restart dhcp using whatever is appropriate for your platform #service dhcpd restart #/usr/local/etc/rc.d/isc-dhcpd.sh restart -q # Write message to /var/log/dhcpc.log to document event. /usr/bin/logger -p user.warning -t dhclient Your ISP DNS IP addresses changed. # Write message to /var/log/dhcpd.log to document event. /usr/bin/logger -p local1.warning -t dhclient Your ISP DNS IP addresses changed. fi #rm -f /etc/dhcpd.name-servers.tmp ### End of refresh dhcpd dns ip script ### -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Daniel Bye Sent: Wednesday, May 03, 2006 2:35 PM To: freebsd-questions@freebsd.org Subject: Re: dhclient-exit-hooks On Wed, May 03, 2006 at 02:25:08PM -0400, fbsd wrote: There is nothing to rebuild. I am using the built in dhclient that comes with the system. But it's not dhclient that's emitting the error, is it? It's your MTA. (check in /etc/mail/mailer.conf, and you will see that send-mail is an alias for the binary of your MTA) Atom's suggestion is worth pursuing. Dan -Original Message- From: Atom Powers [mailto:[EMAIL PROTECTED] Sent: Wednesday, May 03, 2006 1:05 PM To: [EMAIL PROTECTED] Cc: Norbert Papke; freebsd-questions@freebsd.org Subject: Re: dhclient-exit-hooks On 5/3/06, fbsd [EMAIL PROTECTED] wrote: I changed #! /bin/sh to #!/bin/sh it had no effect. Logger command still not producing output. using sendmail to construct the email made no difference. Still get this message /libexec/ld-elf.so.1: Shared object libpcre.so.0 not found, required by send-mail Did you rebuild the package? I have had a similar problem with, in my case, net-snmp. Reinstalling the port fixed it. Something about statically linked libraries I think. -- -- Perfection is just a word I use occasionally with mustard. --Atom Powers-- ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] -- Daniel Bye PGP Key: ftp://ftp.slightlystrange.org/pgpkey/dan.asc PGP Key fingerprint: D349 B109 0EB8 2554 4D75 B79A 8B17 F97C 1622 166A _ ASCII ribbon campaign ( ) - against HTML, vCards and X - proprietary attachments in e-mail / \ ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: dhclient-exit-hooks
On Wed, May 03, 2006 at 03:35:13PM -0400, fbsd wrote: I do not see why postfix would have any thing to do with logger not working. ACK. I've been talking about the Shared object not found error, which is definitely, from the error message you posted, caused by postfix not being able to find pcre. Has that problem gone away with the addition of the rcorder directives? (I've made the assumption here that your script is being called by rc, from one of your rc.d directories - if this is NOT the case, then you can pretty well ignore all I've said, and I apologise for being off the mark...) I added some ehco statments to test if the if statment is working. In this pass /etc/dhcpd.name-servers.tmp = /etc/dhcpd.name-servers so the second echo should not have been executed, but it was Have you run the script with xtrace turned on? That at least will show you which lines of the script are being run. It might help you narrow down on the part that goes wrong. I really can't see anything wrong with the logic or syntax of your script, so this part of it is somewhat baffling to me. From testing it looks like only the dhcpc variables plus mv, and echo commands work in the script. from the boot log dc0: link state changed to DOWN dc0: no link dc0: link state changed to UP got link dc0: link state changed to DOWN before if check after if check DHCPREQUEST on dc0 to 255.255.255.255 port 67 dc0: link state changed to UP DHCPACK from 10.0.10.2 dc0: link state changed to DOWN bound to 10.0.10.4 -- renewal in 43200 seconds. and here is the dhclient-exit-hooks script #!/bin/sh # PROVIDE: dhclient-exit-hooks # REQUIRE: SERVERS ### Start of refresh dhcpd dns ip # This script will propagate to dhcpd the changed dns servers ip address # which dhcp-client puts in resolv.conf. # # In dhcpd.conf replace the option domain-name-servers line with this # # include /etc/dhcpd.name-servers; # # Spript uses the dhcpc variables to build temp line in dhcpd format. # Then compare temp content to production content. # If different replace production content with new content from temp, # and restart dhcp to reread dhcpd.conf containing new ISP dns ip addresses. # # logging event and sending email to user root is optional. # # Note: All LAN machines using dhcpd will not get new ISP dns ip addresses # until they reboot or their lease comes up for renewal. # # Each of the following lines must be one long line. IE: no wrap arounds # load my_domain_name_servers variable with ISP dns ip addresses from dhcpc my_domain_name_servers=`echo $new_domain_name_servers | sed -e 's/ /, /g'` # Create single line in file to be included in dhcpd.conf echo option domain-name-servers $my_domain_name_servers ; /etc/dhcpd.name-servers.tmp echo before if check # See if different from what production file contains cmp -s /etc/dhcpd.name-servers.tmp /etc/dhcpd.name-servers if [ $? -gt 0 ]; then echo after if check # move the new file into place mv /etc/dhcpd.name-servers.tmp /etc/dhcpd.name-servers # restart dhcp using whatever is appropriate for your platform #service dhcpd restart #/usr/local/etc/rc.d/isc-dhcpd.sh restart -q # Write message to /var/log/dhcpc.log to document event. /usr/bin/logger -p user.warning -t dhclient Your ISP DNS IP addresses changed. # Write message to /var/log/dhcpd.log to document event. /usr/bin/logger -p local1.warning -t dhclient Your ISP DNS IP addresses changed. fi #rm -f /etc/dhcpd.name-servers.tmp ### End of refresh dhcpd dns ip script ### [---snip---] using sendmail to construct the email made no difference. Still get this message /libexec/ld-elf.so.1: Shared object libpcre.so.0 not found, required by send-mail Has this gone away? --^ Apologies for the crossed wires. Dan -- Daniel Bye PGP Key: ftp://ftp.slightlystrange.org/pgpkey/dan.asc PGP Key fingerprint: D349 B109 0EB8 2554 4D75 B79A 8B17 F97C 1622 166A _ ASCII ribbon campaign ( ) - against HTML, vCards and X - proprietary attachments in e-mail / \ pgp5P3b2BRhsM.pgp Description: PGP signature
RE: dhclient-exit-hooks
I figured the Shared object not found error is another sign of what is wrong in general so I commented out the mail command to concentrate on just the logger problem. During testing the logger problem I determined the script if statement is not working. Problem seems more like bug in how and or when during the boot process the script is getting executed. This has nothing to do with my script code. This is how FreeBSD is handling the default dhclient-script that comes pre installed on the system. The recorder directives have made no difference. Please note I am not using the isc-dhcp port dhclient. I am running the dhclient that comes as part of the base install of FreeBSD. I have ifconfig_dc0=DHCP in rc.conf to launch /sbin/dhclient-script. dhclient-script calls dhclient-exit-hooks I don't think the recorder directives get into play because dhclient does not use the rc.d environment. I know the dhclient-exit-hooks script is executing because of the echo commands I put in it before and after the IF statement. I also know the dhclient variables are being loaded in the /etc/dhcpd.name-servers file because I empty it before rebooting system, and after words I edit it and it contains the correct values. I am beginning to think that something changed between 4.x and 6.0 in the way the dhclient-script get processed during boot. It's acting like it gets executed to early in the boot process. Do I have enough evidence on this to submit a bug report??? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Daniel Bye Sent: Wednesday, May 03, 2006 4:42 PM To: Daniel Bye; freebsd-questions@freebsd.org Subject: Re: dhclient-exit-hooks On Wed, May 03, 2006 at 03:35:13PM -0400, fbsd wrote: I do not see why postfix would have any thing to do with logger not working. ACK. I've been talking about the Shared object not found error, which is definitely, from the error message you posted, caused by postfix not being able to find pcre. Has that problem gone away with the addition of the rcorder directives? (I've made the assumption here that your script is being called by rc, from one of your rc.d directories - if this is NOT the case, then you can pretty well ignore all I've said, and I apologise for being off the mark...) I added some ehco statments to test if the if statment is working. In this pass /etc/dhcpd.name-servers.tmp = /etc/dhcpd.name-servers so the second echo should not have been executed, but it was Have you run the script with xtrace turned on? That at least will show you which lines of the script are being run. It might help you narrow down on the part that goes wrong. I really can't see anything wrong with the logic or syntax of your script, so this part of it is somewhat baffling to me. From testing it looks like only the dhcpc variables plus mv, and echo commands work in the script. from the boot log dc0: link state changed to DOWN dc0: no link dc0: link state changed to UP got link dc0: link state changed to DOWN before if check after if check DHCPREQUEST on dc0 to 255.255.255.255 port 67 dc0: link state changed to UP DHCPACK from 10.0.10.2 dc0: link state changed to DOWN bound to 10.0.10.4 -- renewal in 43200 seconds. and here is the dhclient-exit-hooks script #!/bin/sh # PROVIDE: dhclient-exit-hooks # REQUIRE: SERVERS ### Start of refresh dhcpd dns ip # This script will propagate to dhcpd the changed dns servers ip address # which dhcp-client puts in resolv.conf. # # In dhcpd.conf replace the option domain-name-servers line with this # # include /etc/dhcpd.name-servers; # # Spript uses the dhcpc variables to build temp line in dhcpd format. # Then compare temp content to production content. # If different replace production content with new content from temp, # and restart dhcp to reread dhcpd.conf containing new ISP dns ip addresses. # # logging event and sending email to user root is optional. # # Note: All LAN machines using dhcpd will not get new ISP dns ip addresses # until they reboot or their lease comes up for renewal. # # Each of the following lines must be one long line. IE: no wrap arounds # load my_domain_name_servers variable with ISP dns ip addresses from dhcpc my_domain_name_servers=`echo $new_domain_name_servers | sed -e 's/ /, /g'` # Create single line in file to be included in dhcpd.conf echo option domain-name-servers $my_domain_name_servers ; /etc/dhcpd.name-servers.tmp echo before if check # See if different from what production file contains cmp -s /etc/dhcpd.name-servers.tmp /etc/dhcpd.name-servers if [ $? -gt 0 ]; then echo after if check # move the new file into place mv /etc/dhcpd.name-servers.tmp /etc/dhcpd.name-servers # restart dhcp using whatever is appropriate for your platform #service dhcpd restart #/usr/local/etc
Re: dhclient-exit-hooks
fbsd wrote: When this script runs the logger statements do not create any message in the targeted log files. IF I execute the same logger statements from the command line they work as expected. Hi, Forgive my ignorance if it turns out I'm totally off track here but do you need a line in /etc/syslog.conf such as: !name-of-your-script *.* /var/log/dhcpd.log ^^^ or whatever level of logging you want I couldn't get named to log so to /etc/syslog.conf I added !named *.*/var/log/named.log and manually created /var/log/named.log to have messages of all levels logged. Just a shot in the dark... Best Regards, Duane Whitty -- [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
RE: dhclient-exit-hooks
You missed this statement I posted IF I execute the same logger statements from the command line they work as expected. That only could happen if the log files were all ready in syslog.conf. Good try. You have good grasp of how logging works. -Original Message- From: Duane Whitty [mailto:[EMAIL PROTECTED] Sent: Wednesday, May 03, 2006 6:50 PM To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] ORG Subject: Re: dhclient-exit-hooks fbsd wrote: When this script runs the logger statements do not create any message in the targeted log files. IF I execute the same logger statements from the command line they work as expected. Hi, Forgive my ignorance if it turns out I'm totally off track here but do you need a line in /etc/syslog.conf such as: !name-of-your-script *.* /var/log/dhcpd.log ^^^ or whatever level of logging you want I couldn't get named to log so to /etc/syslog.conf I added !named *.*/var/log/named.log and manually created /var/log/named.log to have messages of all levels logged. Just a shot in the dark... Best Regards, Duane Whitty -- [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
dhclient-exit-hooks
When this script runs the logger statements do not create any message in the targeted log files. IF I execute the same logger statements from the command line they work as expected. This is the boot time messages. dc0: link state changed to DOWN dc0: no link dc0: link state changed to UP got link dc0: link state changed to DOWN DHCPREQUEST on dc0 to 255.255.255.255 port 67 dc0: link state changed to UP DHCPACK from 10.0.10.2 dc0: link state changed to DOWN bound to 10.0.10.4 -- renewal in 43200 seconds. IF I execute the cat command to issue the notification email from the command line it works fine, but when used in the script I get these messages during boot process. I am running postfix launched by the sendmail wrappers on a FreeBSD 6.0 system. ~/.mailrc: No match. DHCPREQUEST on dc0 to 255.255.255.255 port 67 /libexec/ld-elf.so.1: Shared object libpcre.so.0 not found, required by send-mail dc0: link state changed to UP DHCPREQUEST on dc0 to 255.255.255.255 port 67 DHCPACK from 10.0.10.2 dc0: link state changed to DOWN bound to 10.0.10.4 -- renewal in 43200 seconds. #! /bin/sh # Start of refresh dhcpd dns ip script # # This script will propagate to dhcpd the changed dns servers ip # addresswhich dhcp-client puts in resolv.conf. # # In dhcpd.conf replace the option domain-name-servers line with this # # include /etc/dhcpd.name-servers; # # Script uses the dhcpc variables to build temp line in dhcpd format. # Then compare temp content to production content. # If different replace production content with new content from temp and # restart dhcp to reread dhcpd.conf containing new ISP dns ip addresses. # # logging event and sending email to user root is optional. # # Note: All LAN machines using dhcpd will not get new ISP dns ip # addresses until they reboot or their lease comes up for renewal. # # Each of the following lines must be one long line. IE: no wrap around # load my_domain_name_servers variable with ISP dns ip addresses from dhcpc my_domain_name_servers=`echo $new_domain_name_servers | sed -e 's/ /, /g'` # Create single line in file to be included in dhcpd.conf echo option domain-name-servers $my_domain_name_servers ; /etc/dhcpd.name-servers.tmp # See if different from what production file contains cmp -s /etc/dhcpd.name-servers.tmp /etc/dhcpd.name-servers if [ $? -gt 0 ]; then # move the new file into place mv /etc/dhcpd.name-servers.tmp /etc/dhcpd.name-servers # restart dhcp using whatever is appropriate for your platform #service dhcpd restart #/usr/local/etc/rc.d/isc-dhcpd.sh restart -q # Write message to /var/log/dhcpc.log to document event. logger -p user.warning -t dhclient Your ISP DNS IP addresses changed. # Write message to /var/log/dhcpd.log to document event. logger -p local1.warning -t dhclient Your ISP DNS IP addresses changed. # Send notification email to root user. This can wrap to next line. # cat EOF | mail -s dhcp client changed ISP DNS IP addresses root #The dhclient-exit-hook script was invoked and has determined that your #ISP changed the IP address of their DNS servers. The new values have been #auto updated to dhcpd.conf and dhcp restarted so they are now in effect. # #Note: All LAN machines using dhcpd will not start using the new ISP dns #ip addresses until they reboot or their lease comes up for renewal. #EOF fi rm -f /etc/dhcpd.name-servers.tmp ### End of refresh dhcpd dns ip script ### ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: dhclient-exit-hooks
On Tuesday 02 May 2006 06:12, fbsd wrote: IF I execute the cat command to issue the notification email from the command line it works fine, but when used in the script I get these messages during boot process. I am running postfix launched by the sendmail wrappers on a FreeBSD 6.0 system. ~/.mailrc: No match. Use sendmail(8) rather than mail(1). mail(1) expects to be run from a user session and looks for the user's preferences stored in the user's ,mailrc file. No user is available during the boot process. In your script, #! /bin/sh Also, try removing the space between #! and /bin/sh. It may be causing some weirdness. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
