takizo, not takezo

How can I check my list of preapproved payment list with Paypal?

Here is the instruction of how to access to list of Preapproved Payment in your Paypal.

• After login to Paypal, on top of the menu, click on “Profile”.
• On the left menu, click on “My money”
• You will see the option “My preapproved payments”

It actually took me quite sometime to figure how to access preapproved payments list

By default Linux CentOS or other Linux Distro installation, MySQL data directory is stored in /var/db/mysql, how can I change it to other directory in example /db/mysql?

It is always better to have MySQL Data Directory store in a specific partition/drive. It will help on performance and better management and scalability. You change change the data store directory in Linux by editing /etc/my.cnf file.

Edit /etc/my.cnf file

# vi /etc/my.cnf

Change the data directory structure

datadir=/db/mysql
socket=/db/mysql/mysql.sock

After the file has been updated, restart MySQL service.

If you have more than 100 servers in your network; behind a firewall; lazy to access to documentation. Here is the alternative option to find out your machine’s public IP Address via command line

$ wget -q -O - http://ipchicken.com |  grep -o -E '(^|[[:space:]])[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*([[:space:]]|$)'
# By default, FreeBSD doesn't have wget, you can use fetch instead
$ fetch -q -o - http://www.ipchicken.com | grep -o -E '(^|[[:space:]])[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*([[:space:]]|$)'

You need port 80 external/WAN access to perform the task.

Most user who are new to Nagios doesn’t know there is a hidden plug-in called check_dns in Nagios Monitoring system. On FreeBSD server, the binary can be found at /usr/local/libexec/nagios. List the directory and you should see check_dns.

check_dns usage is as below

$ ./check_dns -H host [-s server] [-a expected-address] [-A] [-t timeout] [-w warn] [-c crit]

Try to run the command as below and you will get the query result

$ ./check_dns -H systems.takizo.com -s 8.8.8.8
DNS OK: 0.012 seconds response time. systems.takizo.com returns 70.32.103.130|time=0.011703s;;;0.000000

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Grab this 747 pages DNS eBook for Free; Written by Jan-Piet Mens, titled “Alternative DNS Servers”. I glance through at the eBook and found several interesting topics for DNS deployments.

• Bind DLZ – The Bind extension which can store your data in database MySQL, PostgreSQL and etc.
• NSD – A lot people didn’t know about Name Server Daemon, find out more from the eBook.
• DNS Planning – Name Server deployment planning, capacity planning and how to scale.
• PowerDNS – Configure and master it.
• LDAP DNS – Deploy DNS server with LDAP.

Alright, enough with the talks, where to download the eBook? It’s FREE for Download here