Hello

Tooday Jorge send me an e-mail asking how to send files using XML-RPC. So I did some modifications in Client and Server, Java XML-RPC to do this.

I implemented this and it wasn’t so hard. I read the documentation of Apache XML-RPC to see how to send bytes. They are send using an array of bytes (byte[]) in a Base64 codification.

To create the Base64 codification I used Java Base64 in public domain.

How to get an array of bytes from a file

How to create a file from a array of bytes

XML-RPC-Transfer-file

Matheus

PS: This is just an example, any file that client ask, the server will send. It WILL BE A SYSTEM VULNERABILITY!

Hello,

The last days I keep trying to configure my server. I know how to configure the network to this:

MODEM -> (eth0) Servidor (eth1) -> (LAN Port) Router (LAN Ports) -> Computers

This topology don`t work for me, because in this way I lost one WAN Port. So I thought in this topology:

MODEM -> (eth0) Servidor (eth1) -> (Porta WAN) Router (Portas LAN) -> Computadores

First of all configure your eth1 manyally as (edit /etc/network/interfaces):

auto eth1
iface eth1 inet static
address 192.168.100.254
netmask 255.255.255.0
network 192.168.100.0
broadcast 192.168.100.255

After this I add this iptables rules:

sysctl net.ipv4.ip_forward=1
iptables -t nat -A POSTROUTING –out-interface eth0 -j MASQUERADE
iptables -A FORWARD –in-interface eth0 -j ACCEPT

I need to setup the router manually:

IP Address : 192.168.100.1
Subnet Mask : 255.255.255.0
ISP Gateway Address : 192.168.100.254
Primary DNS Address : 200.247.141.11 (DNS)
Secondary DNS Address : 200.247.141.12 (DNS)

So up and running

Matheus

Good night,

A few days ago I created a XML-RPC server to test some functions. What is XML-RPC? XML-RPC is a remote procedure call (RPC) protocol which uses XML to encode its calls and HTTP as a transport mechanism.(wikipedia) To start using XML-RPC in Java I used apache xml-rpc.

Example client and server XML-RPC.

Best Regards,
Matheus