Download Offline Installers: Microsoft .NET Framework 4.0, 3.5 SP1, 3.5, 3.0 & 2.0 From Microsoft Servers

As many of the new Microsoft Windows applications are developed using .NET Framework, it is becoming mandatory to install .NET Framework on our personal computers.

\

Microsoft provides .NET Framework installer as a free download available to everyone. But it is an online installer. That means, initially we have to download a small piece of installer and upon starting the installation process the installer automatically connects to Microsoft servers and downloads the required components and completes the installation.

The online installers works great as long as we have internet connectivity always. But many of us require offline installer to install the software on computers not connected to internet, to save the bandwidth while installing on many computers, etc.

Below are set of links on Microsoft servers from where you can download the offline installers of .NET Framework 4.0, 3.5, .NET Framework 3.5 Service Pack 1, .NET Framework 3.0 and .NET Framework 2.0.

.NET Framework 4.0 Setup

* Download 32 bit & 64 bit versions

.NET Framework 3.5 Setup

* Download 32 bit & 64 bit Versions

.NET Framework 3.5 Setup Service Pack 1

* Download .NET 3.5 Service Pack 1

.NET Framework 3.0 Setup

* Download 32 bit version
* Download 64 bit version

.NET Framework 2.0 Setup

* Download 32 bit version
* Download 64 bit version

.NET Framework Client Profile Offline Installer

* Download .NET Client Profiler Offline Installer

What’s the Difference Between 127.0.0.0 and 127.0.0.1?

Sometimes the most elementary of questions yield teachable moments; read on as we delve into how a single digit change between 127.0.0.0 to 127.0.0.1 offers a chance to look at network topology.

The Question

What’s the Difference Between 127.0.0.0 and 127.0.0.1?

I know that both are loopback IPs, but they have another ip mask.

What’s the difference between them? Can they be used interchangeably?

===========================================================================

IPv4 routes
===========================================================================
Active routes:
Destination               Mask          Gateway        Interface Metric
      0.0.0.0          0.0.0.0      192.168.1.1      192.168.1.6     26
[...]
    127.0.0.0        255.0.0.0         On-link         127.0.0.1    306
    127.0.0.1  255.255.255.255         On-link         127.0.0.1    306

What kind of information can we tease out from this table?

How to change TTL of TCP packets for windows (XP/NT/2000) & LINUX (Kernel 2.4.x) ?

How to change TTL of TCP packets for windows (XP/NT/2000) & LINUX (Kernel 2.4.x) ?

For windows , you can change the TTL value, by editing registry value; 
======================================================================
1. run ---> regedit
2. Go to the below Path and Add new DWORD Value

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters

3. Right. Click. on Right. Pane ---> New ---> DWORD value
4. Rename it to DefaultTTL and set the value (0-255).
5. Restart your System.
6. Ping from other system or try Ping localhost

================================================================

For Linux (Kernel ver-2.4.x & 2.6.x.x)
=============================
I have done it, which is given below,

1. Setting temporary TTL (active till system reboot)
-------------------------------------------------------
...]#echo "123" > "/proc/sys/net/ipv4/ip_default_ttl"

The above command will change the default TTL(64) to 123.

2. Setting TTL Permanently
-----------------------------
I have done nothing ,but automated it -:)...

...]#vi /etc/rc.d/rc3.c/S99local
..
# added
echo "123" > "/proc/sys/net/ipv4/ip_default_ttl"
.

Note : Second Way to change TTL in Linux

You can change your Default TTL value of LINUX by editing the /etc/sysctl.conf file and add the line ,

net.ipv4.ip_default_ttl = <0-255>

&

Reboot your system ...