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How-To : Use Raspberry PI as Wireless Access Point

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Here is how to turn Raspberry PI with Linksys WUSB100 v2.0 adapter and Raspbian into wireless access point. This might be handy for conference rooms where you have wired connection, but wireless signal is too low. Just quick setup on Raspberry, plugin the cable and you have wireless available.

Install required packages

apt-get install firmware-ralink wireless-tools hostapd bridge-utils

Modify /etc/network/interfaces to add bridge interface

auto lo br0

iface lo inet loopback
iface eth0 inet manual

allow-hotplug wlan0
iface wlan0 inet manual

iface br0 inet dhcp
bridge_ports eth0 wlan0

Once network configuration is modified reboot Raspberry PI.

Create /etc/hostapd/hostapd.conf file to define access point configuration

interface=wlan0
driver=nl80211
bridge=br0
country_code=PL
ieee80211d=1
ssid=raspb3rry-wifi
hw_mode=g
channel=6
wme_enabled=0
macaddr_acl=0
auth_algs=1
wpa=2
wpa_passphrase=raspberry123
wpa_key_mgmt=WPA-PSK
wpa_pairwise=TKIP
rsn_pairwise=CCMP

Add configuration information to /etc/default/hostapd

That will make hostapd daemon to start automatically each time Raspberry PI will bootup.

DAEMON_CONF="/etc/hostapd/hostapd.conf"
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How-To : Install RDP server on Raspberry PI with Raspbian

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By default on Raspberry PI with Raspbian you can enable SSH and connect via text terminal connection.

However, Raspberry PI offers also graphical environment.

How to access Raspberry PI graphical desktop remotely?

Here is how to install RDP server on Raspberry PI with Raspbian…

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How-to : Package virtual machine for Riverbed Steelhead with RSP

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RSP platform installed on Riverbed allows to run VMware virtual machines on it. THat gives very powerful environment as Riverbed might become the only appliance deployed for branch office and with WAN optimization we can also provide basic services/systems to site. That gives us huge flexibility and same time no need to deploy additional systems for site can be placed on Riverbed as virtual machines. Of course that reuires special license and also additional RAM would be recommended, so we won’t suffer performance issues (additional memory can be purchased with Riverbed appliance and RSP license, so we get ready to go environment).

But it is not enough to create VMware cityual machine on PC and upload it to Riverbed. Few more steps is involved in the process and here we will go through all steps to see how to prepare virtual machine for Riverbed on Windows 7 PC with VMware Workstation 9 installed.

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Config snippets : PostgreSQL : Listening on all IP addresses

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After installation PostgreSQL is listening on localhost only. To change that adjustment has to be done in postgresql.conf.

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Code snippets : PostgreSQL : Add new superuser after PostgreSQL installation

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After I instaled PostgreSQL on Amazon Linux AMI, first thing after database server was up and running I start thinking how to create user with administrative privileges, so I can access it using some management applications.

So, here is how to create superuser and set password, which will allow to access PostgreSQL using admin tools.

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How-to : Connect to Amazon EC2 Linux AMI using SecureCRT

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Recently I decided to use Amazon AWS EC2 platform to host systems in the Cloud. As operating system I needed is Linux I quickly deployed Amazon Linux AMI, which is quick and simple to do.

Once instance was created I downloaded key pair. Now it came down to connecting to my virtual machine in the cloud.My SSH client of choice is SecureCRT. Let’s see how to configure session parameters in SecureCRT in order to connect to Amazon Linux AMI instance hosted on EC2 platform.

I’m using SecureCRT 7.0.1 to connect to server hosted on Amazon EC2 platform.

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