Ubuntu 重新設定系統時區

指令
$ sudo dpkg-reconfigure tzdata

Update linux apt-get list

1. apt-get clean
2. rm -rf /var/lib/apt/lists/*
3. apt-get clean
4. apt-get update
5. apt-get upgrade

Sikuli IDE install in OS X Yosemite

1. Install JAVA SDK 1.7
2. Download Sikuli version 1.1.0
3. Create new folder and move "sikulixsetup-1.1.0.jar" to folder.
4. Double click "sikulixsetup-1.1.0.jar" to install Sikuli.
5. In folder have file "sikulix.jar", double click it, you cat see Sikuli IDE.

How to change Tomcat 7 JDK/JVM

1. Usually Tomcat 7 default use Java SDK 1.6
2. First download Oracle Java SDK 1.7 or 1.8
3. vim /etc/default/tomcat7
4. Change JAVA_HOME path and restart Tomcat 7
5. Finish

How to used iptable block port by Mac Address

iptables -A INPUT -i eth0 -p udp --dport 5060 -j ACCEPT

iptables -A INPUT -i eth0 -p tcp --dport 22 -j ACCEPT

iptables -A INPUT -i eth0 -p tcp --dport 80 -j ACCEPT

iptables -A INPUT -i eth0 -p tcp --dport 443 -j ACCEPT

iptables -A INPUT -i eth0 -p tcp --dport 1883 -j ACCEPT

iptables -A INPUT -p tcp --destination-port 7777 -m mac --mac-source 28:D2:44:2A:EF:AD -j ACCEPT

iptables -A INPUT -i eth0 -m state --state NEW,INVALID -j DROP

----------------------------------------------------------

Allow UDP 5060, TCP 22,80,443,7777(By Mac Address)

Red Command is deny all connection, only Allow port can access.

How to setting Asterisk to Amazon

Hello,

I would like you to check and configure the following to allow Asterisk work correctly:

1. Edit your "sip.conf" and add the following settings.

    $ vim  /etc/asterisk/sip.conf

      #add the two lines in your sip.conf
       [general]
       localnet=172.31.0.0/255.255.0.0
       externip=54.254.242.156
     
       [provider]
       nat=yes

2.  Reload asterisk.

     $ asterisk -rvvvvvvv

Looking forward to your feedback to assist in further troubleshooting.

Best regards,

Billy O.
Amazon Web Services
We value your feedback. Please, rate my response using the link below.

Database maps to Sqlalchemy

1. use pip install "sqlacodegen".
2. command $sqlacodegen mysql://users:pass@localhost/db_name --outfile tables.py.
3. Finish.