Showing posts with label Networking. Show all posts
Showing posts with label Networking. Show all posts

Google's faster public DNS server - 8.8.8.8 and 8.8.4.4

google DNS

Google announced that they have started offering public DNS servers as well. Google Public DNS is a free, global Domain Name System (DNS) resolution service, that you can use as an alternative to your current DNS provider.
Only thing you want to use this service is, configure your network with following DNS IP address,

 

8.8.8.8
8.8.4.4

Once this Blog had recommened using OpenDNS . Now you may as well use Google Public DNS IP addresses.

 

Read More Here : http://code.google.com/speed/public-dns/docs/using.html

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Windows Event log to syslog converters

windows SyslogServer

syslog is a standard for forwarding log messages in an IP network. We can send device /server logs to the sys log server. so that we can use Syslog server as a central log repository system, commonly we use syslog servers to monitor the networking devices, I was just thinking about the consolidation of windows event logs to a syslog server. because we don’t check our event logs regularly in windows servers . It will be more useful if there is a single window to monitor or filter the logs from deferent servers.

How to send logs from a windows server?

By default there are no options in windows servers we have to use some third party applications to communicate with syslog server. Following are the list of some application which can convert event logs to a syslog message.

 

Event Reporter

EventReporter processes the NT Event Logs, parses them and forwards the results via Syslog protocol to a central Syslog server. It runs on all flavors of Windows Servers and Workstations starting from old-fashined NT up to Server 2008 and Windows Vista.

Ntsyslog

This program runs as a service under Windows NT based operating systems. It formats all System, Security, and Application events into a single line and sends them to a syslog(3) host.

Evtsys

The Eventlog to Syslog utility is a program that runs on Microsoft Windows NT, 2000, or 2003 server, monitoring eventlog messages. When a new message appears in the eventlog, it is read, formatted, and forwarded to a UNIX syslog server. Depending on the facility and priority of the message and the configuration of the syslog server, the message will be logged to a message file or displayed on the console. The most useful situation is to log ERROR or WARNING messages on a console that will alert the administrative staff when unusual conditions exist on the Windows server. The console ought to be one that the administrative staff monitor regularly.

Snare

Snare for Windows is a Windows NT, Windows 2000, Windows XP, and Windows 2003 compatible service that interacts with the underlying Windows Eventlog subsystem to facilitate remote, real-time transfer of event log information.
Event logs from the Security, Application and System logs, as well as the new DNS, File Replication Service, and Active Directory logs are supported. Log data is converted to text format, and delivered to a remote Snare Server, or to a remote Syslog server with configurable and dynamic facility and priority settings.

 

Monitor Ware Agent

It's pure event log functionality is the same, but is also support many more data sources, providing a complete monitoring solution for Windows machines. Most importantly, it can also read, process and forward text log files (including special handling for IIS logs). This permits, for example, the transmission of DHCP server log records. Other log sources include database tables, serial ports, port probes and many more things.

Winlogd

Winlogd is a syslog client for Windows that allows the Event Log to talk to syslog. It runs as a Service monitoring the Windows Event Log and forwarding the messages to a syslog server. Configuration is made via editing registry settings.

cannot login to Linksys WAP54G with Google Chrome

 

WAP54G

I just tried to configure My Linksys WAP54G Wi-Fi,
As per the documentation the
Default ip address is 192.168.1.245 and the
Default password is "admin"
Remember there is no user name

I gave 192.168.1.1 to my Pc. Its started pinging 192.168.1.245, also getting the authentication window in the browser 

I tried to login with password "admin", but it is not login , Many times i tried to login. but failed. I was using Google Chrome. at last i tried with Firefox browser and its login successfully.

So peoples who use Google chrome, please don't panic in this type of scenarios. just try with other browser.

For your information ……

The Anatomy of a TCP Connection - Video

See how simply Ben Erwin and Tim O’Neill Explained this with a ball.

Even beginners can easily  understand this.

 

By the NetQoS Team  : http://www.netqos.com

How to disable admin shares ? c$ d$

Do you know your drive is shared by default. this sharing will not show the sharing icon in the drive. this sharing is known as  administrative shares.

you can access the shares them with a $ sigh.

for example

path to access the C drive of  a pc with ip 192.168.0.1 is as follows

\\192.168.0.1\c$

If you are running pc with a blank password. anyone can access your drive.

Permanently disable the the admin shares by editing the registry. check the following values

 

Windows NT 4  Server, 2000 Server, Windows Server 2003

Hive: HKEY_LOCAL_MACHINE
Key: SYSTEM\CurrentControlSet\Services\LanManServer\Parameters
Name: AutoShareServer
Data Type: REG_DWORD
Value: 0




Windows NT 4 Workstation, 2000 Professional, Windows XP


Hive: HKEY_LOCAL_MACHINE
Key: SYSTEM\CurrentControlSet\Services\LanManServer\Parameters
Name: AutoShareWks
Data Type: REG_DWORD
Value: 0

Tor allow Access to blocked sites anonymously

Tor logo

Tor is a free application which is using for anonymous communication on the internet. Tor stands for The Onion Router. Tor Working with Onion routing technology. Onion routing is a technology for anonymous communication.

In this network all the users will work as a router. when you send a request to a server the Tor will encrypt the packet with many layers. Each Onion Routers removes a layer of encryption and send to another Onion Router. Tor also protect its users against traffic analysis attacks
So you can use Tor as a Anonymous Proxy, You can bypass firewall / proxy with Tor. Surf restricted sites with Tor just like Ultrasurf. go to www.torproject.org for more details.

how tor

If you are a proxy user you have to give the details in setting tab

tor application

Download Tor


Also Try Ultrasurf as a proxy

What is PPPoE ?

PPPoE (Point-to-Point Protocol over Ethernet) is a specification for connecting multiple computer users on an Ethernet local area network to a remote site through common customer promise equipment. PPPoE requires no major changes in the operational model for Internet Service Providers (ISPs) and carriers PPPoE is configured as a point to point connection between two Ethernet ports. As a tunneling protocol, PPPoE is used as an effective foundation for the transport of IP packets at the network layer. IP is overlaid over a PPP connection and uses PPP as a virtual dial up connection between points on the network. From the user's perspective, a PPPoE session is initiated by using connection software on the client machine or router

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