After logging in check using ifconfig to confirm that we have a static ip address
... eth0 Link encap:Ethernet HWaddr b8:27:eb:8a:71:a0 inet addr:192.168.1.4 Bcast:192.168.1.255 Mask:255.255.255.0 ... 开启sshSSH (Secure Shell) is a network protocol that allows you to login and control the computer through the command line remotely. As the name suggests it is secure as it encrypts communication across the network (so that others cannot see your password etc). It also has some great features such as tunnelling, which we won’t go into here.
The ssh server is installed on the default image and is started by default. You can enable/disable the ssh server using sudo raspi-config.
You can now connect to the Raspberry pi remotely (on the same network) via ssh.
If you have another linux computer on the network then from a terminal run
ssh 192.168.1.4
which will login with the same username. If you want to use a different username then prefix that before the ip address with an @ sign.
eg
ssh user1@192.168.1.4
I believe that ssh is also installed on a MAC so you can use the same commands as above.
If you want to connect from Windows then there are several options, but I suggest the open source software Putty.
Making the server available on the InternetNext we are going to configure the router to allow ssh logins and web traffics through its firewall to the Raspberry Pi.
You did remember to change the default password for the pi username didn’t you! If you haven’t already changed the default password then do it now otherwise anyone will be able to login to your Raspberry Pi.
As a home user the ip address used on your local network is a private address range that will not work over the Internet. Instead your ISP will provide a single dynamic IP address which is used by the router. To allow traffic to flow from the Internet to your Raspberry Pi needs the IP address of the Pi to be made to look as though it is from the router. This is a process called Network Address Translation (NAT).
The ports that need to be allowed through are port 80 (http) and if you would like to be able to login to the computer from the Internet then port 22 (ssh).
To do this you will need to consult the instructions on your router. In the case of my Belkin router this is through the Firewall > Virtual servers settings (see below), but Netgear this is Advanced > Security > IP Forwarding.
The final stage is to have a DNS entry point at your router’s IP address. In my case I have cable Internet through Virgin Media. Although it does have a dynamic IP address the address does not normally change. I have a static DNS entry on a Internet DNS server. The entry only needs to be changed about once every year or when Virgin Media perform significance maintenance on the Internet connection.
If you have a dynamic IP address that changes on a more recent basis then you will need to register for a dynamic dns service.
安装apacheThe Apache webserver is available to download from the Debian repositories. This can be done through the apt tools.
First have you refreshed the software repositories? If not run sudo apt-get update to make sure that it knows about any new packages / versions available.
Apache is installed by entering the following
sudo apt-get install apache2
The mysql database server is also available through the Debian repositories and installed as
sudo apt-get install mysql-server
During the install there is a prompt request for a password.
The password is for the mysql root user.
Perl is installed as part of the operating system so I will just be adding PHP.
The following commands will install PHP version 5 and the mysql libraries to allow PHP to access the mysql database.
sudo apt-get install php5 sudo apt-get install php5-mysql 配置完成Once the setup is complete you can access the web page by pointing your browser to the router IP address or DNS entry.
You should get a page back stating that it works, but that there is no content loaded.