Tuesday, June 24, 2008

TCP Optimizer - Tips For BEGINNERS

General Settings tab:
Custom settings - check
Modify All Network Adapters - check
network adapter selection - your NIC
TTL - 64
TCP Receive Window - ?
MTU Discovery - Yes
Black Hole Detect - No
Selective Acks - Yes
Max Duplicate ACKs - 2
TCP 1323 Options:
Windows Scaling - ?
Timestamps - uncheck

Advanced Settings tab:
Max Connections per Server - 10
Max Connections per 1.0 Server - 20
LocalPriority - ?
Host Priority - ?
DNSPriority - ?
NetbtPriority - ?
Lan Browsing speedup - optimized
QoS: NonBestEffortLimit - 0
ToS: DisableUserTOSSetting - 0
ToS: DefaultTOSValue - 80
MaxNegativeCacheTtl - 0
NetFailureCacheTime - 0
NegativeSOACache Time - 0
LAN Request Buffer Size - 32768
Then select "Apply Changes" and reboot to take effect

How to get MTU ?
Just use TCP/IP Analyzer http://www.speedguide.net/analyzer.php

How to get proper RWIN ? (TCP Receive Window)


+ Bandwidth
+ Which country we are in
+ Which country we surf frequently

MAX.LATENCY : we should only assume worst latency to the country we surf to most often and stick with it.

+ We should make RWIN an EVEN multiple of MSS

+ Satellite or Wireless should use larger RWIN values because of the high latency


If MTU = 1500

513920 -- works for ~8 to ~30 Mbps
256960 -- 2 to 14 Mbps
128480 -- 1 to 5 Mbps
64240 -- works well up to ~2 Mbps.

If MTU = 1492

511104 -- works for ~8 to ~30 Mbps
255552 -- 2 to 14 Mbps
127776 -- 1 to 5 Mbps
63888 -- works well up to ~2 Mbps.

If MTU <>

+ LEAVE RWIN BLANK and Uncheck Window Scaling
+ Use WinSockFix
+ Update your modem's firmware to get higher MTU
+ Uninstall tweak programs like cfos Speed

If TCPOptimizer can not adjust your RWIN , try enter the value for DefaultReceiveWindow in Cablenut

Windows Scaling
Check Windows Scaling when RWIN > 65535

Constant Values:
Custom settings - check
Modify All Network Adapters - check
TTL - 64
MTU Discovery - Yes
Black Hole Detect - No
Selective Acks - Yes
Max Duplicate ACKs - 2
Timestamps - uncheck
MaxConnectionsPerServer - 10
MaxConnectionsPer1_0Server - 20
Lan Browsing speedup - optimized
QoS: NonBestEffortLimit - 0
ToS: DisableUserTOSSetting - 0
ToS: DefaultTOSValue - 80
MaxNegativeCacheTtl - 0
NetFailureCacheTime - 0
NegativeSOACache Time - 0
LAN Request Buffer Size - 32768

Host Resolution Priority

LocalPriority - 1
Host Priority - 1
DNSPriority - 1
NetbtPriority - 1


LocalPriority - 5
Host Priority - 6
DNSPriority - 7
NetbtPriority - 8


+ Relocate your router and modem in proper place :
Relocate them to some place that are a few feet away from ALL other electrical devices, including apart from each other.Also, make sure you do not coil up any excess length of signal or power cables.

+ Scan for Spyware/malware:

We recommend

AVG AntiSpyware
Ad-Aware 2007
Spybot Search & Destroy
+ Get MORE 20% bandwidth with Win XP :
Run and type “gpedit.msc” > Local Computer Policy > Computer Configuration > Administrative Templates > Network > QOS Packet Scheduler > Limit Reservable Bandwidth > Double click on Limit Reservable bandwidth > Enabled reservable bandwidth > Set it to 0.
+ Disable unnecessary items :
Start > Run > type "msconfig" > StartUp tab > Uncheck unnecessary items
Start > Control Panel > Network Connection > Choose your Network > Uncheck "Client for Microsoft Networks”, “File and Printer sharing for Microsoft Network” , and “QoS Packet scheduler”.
Right click on My Computer > Properties > Advanced tab > Perfomance : Settings > Visual Effects tab > Check "Adjust for best performance" (check "Visual Styles on windows and buttons" and "Use drop shadows for icon labels on the desktop" if you want to keep WinXP theme).
+ Disable unnecessary services :
Run > Type "services.msc" > Disable "Application Layer Gateway Service", "Automatic Updates & Background Intelligent Transfer Service", "QoS RSVP" > Restart Win !!!

+ Using OpenDNS :
Start > Control Panel > Network Connection > Choose your Network > Properties > Internet Protocol (TCP/IP) > Properties > Use the following DNS server addresses => 208 67 222 222, 208 67 220 220.
+ Fake IP and Save Bandwidth with Toonel :
Toonel is an experiment in a technique for conserving network bandwidth. If you are paying a fee based on the amount of data you transfer (e.g. 3G/GPRS/DSL/CDMA) and have monthly download limit, or if you have narrowband connection (e.g. dialup modem) then you are most likely to appreciate the service toonel.net offers (http://toonel.net).

Note : It requires Java Environment (http://java.com/en/download/index.jsp)

Set the following proxy for Browser: Port 8080

+ Internet Explorer : Tools > Internet Options > Connections > “LAN settings” > “ Use a proxy server for your LAN” > Address : Port 8080.

+ Mozilla FireFox : Tools > Options > Advanced > Network > Connection > “Settings” > Manual Proxy Configuration > HTTP Proxy : Port 8080.
+ OpenDNS works with Toonel :
Start > Control Panel > Network Connection > Choose your Network > Properties > Internet Protocol (TCP/IP) > Properties > Advanced > DNS > uncheck Append parent suffixes of the primary DNS suffix.

+ FireFox Speed Hacks :

Speed Hacks

1. Pipelining: By default pipelining is disabled in Firefox. Usually when we visit a site the browser will make only one request to the server but while Pipelining is enabled it makes more than one request.It works like a download accelerator. You will notice a great change in speed while accessing sites in slow server.

In the filter bar type network.http.pipelining. You will be shown the result that matches your search. The first one will be network.http.pipelining itself with a boolean variable. Check the value, if its false double click and make it true

Next you will find an network.http.pipelining.maxrequests just below the previous line. Its an integer value with 4 as default. Change the value to 10, 20 or even 30. Test different values and see which one is optimum for your connection

2. Rendering Delay: Now create a new integer by right clicking anywhere and selecting Integer from New. Give the name as nglayout.initialpaint.delay and the integer value as 0. This specifies the amount of time the browser waits before rendering the page with information it got. You will find the page loading part by part but this is a useful hack as texts will be displayed first.
NOTE: If you get a lot of “Page not found” error after applying this, then try to increase the value from 0 to say 2 or 3.


* Set network.http.pipelining to true
* Set network.http.proxy.pipelining to true
* Set network.http.pipelining.maxrequests to 20 or whatever value you like
* Create a new integer called nglayout.initialpaint.delay and give its value as 0


Ever noticed of instances when Firefox’s CPU usage shoots up to 90% and the Memory usage shoots up to anywhere between 200 MB and 700 MB(this happens if you dare to open 200+ tabs like this gal tried )? Read on for some tips to improve the situation.

1. Excellent tips from Zolved (go to the site for detailed instructions)

Check your Extensions and Themes.
Check the Plug-ins.
Clear Download History.
Restart Firefox Periodically.
Assign Memory Cache on Firefox.
Release Memory when Firefox is minimized

2. Disable prefetch: Firefox has a nasty habit (sometimes this is useful) when you search in Google. It automatically loads the sites you are likely to visit like the first result. Disabling these can be a good idea for people with low-speed internet connection or low RAM. You can also disable this if you are bandwidth miser :P. To do this type in network.prefetch-next in the filter box and double click the value to turn it to false.


* Disable unwanted Extensions
* Disable unwanted Plug-ins.
* Clear Download History.
* Restart Firefox Periodically and don’t hibernate/sleep your computer while Firefox is running
* Set browser.cache.memory.enable to true, create a new integer named browser.cache.memory.capacity and give its value equal to 16 times your RAM capacity in MB (16 X your RAM size which is usually 256 or 512).
* Create a new boolean value named config.trim_on_minimize and set it to true
* Disable prefetch by toggling network.prefetch-next to false

FireFox Add-ons to save bandwidth and faster connection :

+ AdBlockPlus (Block Images , Flash...) https://addons.mozilla.org/en-US/firefox/addon/1865

+ AdBlockPlus Element Hiding Helper (block HTML elements, WYSIWYG style) https://addons.mozilla.org/en-US/firefox/addon/4364

+ NoScript (Block Javascripts with Filter and more...) https://addons.mozilla.org/en-US/firefox/addon/722

FireFox Add-ons to hack Google :

GreaseMonkey : https://addons.mozilla.org/en-US/firefox/addon/748

Two Column Google (row-wise) places Google search results into two columns row-wise, making use of wasted space on large monitors. http://userscripts.org/scripts/show/8477

(Install GreaseMonkey first then Two Column Google)

More FireFox Usages:

+ Disable Cookies (protect yourself from eyes, save bandwidth and Disk space) : Tools > Options > Privacy > Uncheck accept cookies from sites
(note : allow Google.com and Yahoo.com, and of course speedguide.net)
Large cache (save bandwidth and load pages faster) : Tools > Advanced > Network > Set cache (500 MB is recommended)
More Useful Links :

Dr Tweak



IP Lookup

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