Into.the.Void.

Plesk is surely not ready for IPv6. Despite that fact, many people – me included, have the DNS records of their favorite domains managed by Plesk and still want to be able to add some IPv6 records to those.

Some time ago I had posted on my twitter account a link to another blog that had a “hackish way” to add AAAA records to Plesk. I have written a slightly more elegant shell script (to be run by root only) than the one provided by experimentalworks.

First of all you _need_ to alter dns_recs table of the psa database to allow AAAA records:

# mysql -u admin -p psa 
mysql> alter table dns_recs modify column type enum('NS','A','AAAA','CNAME','MX','PTR','TXT','SRV','master','none') NOT NULL default 'A'; 

Then download my plesk-AAAA.sh script and use it like the following example.

To add www.foobar.gr to point to 2001:db8:1001::1

Usage: ./plesk-AAAA.sh [zone serial]
#./plesk-AAAA.sh foobar.gr www 2001:db8:1001::1
#./plesk-AAAA.sh foobar.gr ipv6 2001:db8:1001::1 12

Known bug/feature:
If you add a record without adding a serial, for the soa record, at the end, it will add the serial of the domain in the form:

YYYYMMDD10

So if you add two ipv6 hosts in the same day for the same domain you _have_ to manually add a serial >10 for the second host (and so forth).

For the ones who don’t like downloading but would like to see the script source, here it is:

  1 #!/bin/sh
  2 
  3 usage () {
  4         echo "Usage: $0 <domain> <hostname> <v6 IP> [zone serial]"
  5         echo "Usage: $0 foobar.gr www 2001:db8:1001::1"
  6         exit 1
  7 }
  8 
  9 if [ $# -lt 3 ]; then
 10         usage
 11 fi
 12 DOMAIN=$1
 13 HOSTNAME=$2
 14 v6IP=$3
 15 INPUT_SERIAL=${4:-10}
 16 FULLHOST="$2.$1."
 17 
 18 ADMIN_PASS=`cat /etc/psa/.psa.shadow`
 19 MYSQL_BIN_D=`grep MYSQL_BIN_D /etc/psa/psa.conf | awk '{print $2}'`
 20 PRODUCT_ROOT_D=`grep PRODUCT_ROOT_D /etc/psa/psa.conf | awk '{print $2}'`
 21 SERIAL=`date +%Y%m%d${INPUT_SERIAL}`
 22 mysql="${MYSQL_BIN_D}/mysql -N -uadmin -p${ADMIN_PASS} psa"
 23 
 24 query1="SELECT dns_zone_id FROM dns_recs where host like \"$DOMAIN%\" LIMIT 0,1"
 25 ZONE_ID=`echo "$query1" | $mysql`
 26 echo "ZONE_ID=$ZONE_ID"
 27 query2="INSERT INTO dns_recs (displayHost, host, displayVal, val, type, dns_zone_id) VALUES ('$FULLHOST', '$FULLHOST', '$v6IP', '$v6IP', 'AAAA',$ZONE_ID)"
 28 echo "$query2" | $mysql
 29 
 30 query3="UPDATE dns_zone SET serial=\"$SERIAL\" WHERE id=$ZONE_ID LIMIT 1;"
 31 echo "$query3" | $mysql
 32 
 33 echo "REBUILDING zone file for $DOMAIN"
 34 $PRODUCT_ROOT_D/admin/sbin/dnsmng update $DOMAIN

The script has been tested with bash and zsh. I have no idea whether it works under any other shells.
The script probably won’t delete your databases, but…use it at your own risk 🙂 I hope someone finds it useful.

Filed by kargig at 20:10 under Internet,Linux,Networking
Tags: aaaa, aaaa record, bash, dns, ipv6, Linux, Networking, plesk, script, shell, zsh
2 Comments | 8,177 views

I recently upgraded from a stable fluxbox release (1.0.0) to a development one (1.1.1), on gentoo x11-wm/fluxbox-1.1.1-r1, ~x86 branch . There have been some interesting changes. If you also upgrade you might find though that your “tabs” are not working.
Recent fluxbox versions (1.1.0+) have dumped the old “groups” file which used to contain applications that could be grouped in tabs. Now the grouped applications must be declared inside the “apps” file. The syntax is rather simple, if you want an application to have tab support just add a “[group]” line before it. For example if you had a groups file that combined urxvt, xterm and aterm tabs:
% cat ~/.fluxbox/groups
urxvt xterm aterm

The new proper syntax in apps file would be:
%cat ~/.fluxbox/apps
[group]
[app] (name=urxvt)
[app] (name=xterm)
[app] (name=aterm)
[end]

I wrote a perl script that can convert your old groups file to the new group format for apps file. fbox_groups_to_apps.pl

Bugs reports,fixes are more than welcome…

Filed by kargig at 21:07 under Gentoo,Linux
Tags: convert, fluxbox, Gentoo, perl, script, tabs
1 Comment | 7,479 views

I’ve written a small perl script to parse random entries from the extremely usefull commandlinefu.com website. Quoting from their site:

Command-Line-Fu is the place to record those command-line gems that you return to again and again.

The script code is very “clean”. I can almost say that it’s written in a very python-ish way.
Sample output:%./cfu.pl
CMD: for (( i = 0; i < 100; i++ )); do echo "$i"; done
URL=http://www.commandlinefu.com/commands/view/735/perform-a-c-style-loop-in-bash. Title=Perform a C-style loop in Bash.
Description: Print 0 through 99, each on a separate line.
%./cfu.pl
CMD: rsync -av -e ssh user@host:/path/to/file.txt .
URL=http://www.commandlinefu.com/commands/view/20/synchronise-a-file-from-a-remote-server Title=Synchronise a file from a remote server
Description: You will be prompted for a password unless you have your public keys set-up.

You can get it from here: commandlinefu.com random entry parser perl script

As far as I’ve tested, it works out of the box on default perl installations of Debian, Gentoo and Mac OS X.

Filed by kargig at 01:28 under Gentoo,Internet,Linux,MacOSX
Tags: commandlinefu, debian, Gentoo, MacOSX, oneliner, parse, perl, script
3 Comments | 11,531 views