Dest’s Blog

I’ve detected that i might’ve miss out something during the previous edition, so here’s the stuff that i missed.

Allow BitComet access through any firewalls

Windows XP SP2 Firewall

Whenever ‘Listen Port’ is mentioned, it refers to the Listen Port you have chosen here in BitComet:
Options > Preferences > “Listen Port”

Go to Start > Settings > Control Panel > Network and Internet Connections > Network Connections.

Right click the Local Area Connection and choose Properties (if there is more than one use the one that says Connected underneath). Then click the Advanced tab.

Click the Settings button and go to the “Exceptions” tab. Click the Add Program button. Select BitComet then click OK.

Windows XP SP1 Firewall

Go to Start > Settings > Control Panel > Network and Internet Connections > Network Connections.

Right click the Local Area Connection and choose Properties (if there is more than one use the one that says Connected underneath). Then click the Advanced tab.

Click the Settings button at the bottom. In the Advanced Settings window, on the Services tab, click the Add button and enter the following information (you need to make 2 rules, one for TCP and one for UDP):

Description of service: BitComet TCP
Name or IP address: localhost
External Port: enter your ‘Listen Port’
Internal Port: enter your ‘Listen Port’
Select TCP
Click OK

Click the Add button again and enter the following information:

Description of service: BitComet UDP
Name or IP address: localhost
External Port: enter your ‘Listen Port’
Internal Port: enter your ‘Listen Port’
Select UDP
Click OK

Sygate Personal Firewall

Double click on the Sygate icon in your system tray then right-click BitComet and select Allow. If BitComet isn’t listed there, start BitComet and it will appear.

Zone Alarm

Give your BitComet access and server permission to the trusted and internet zone (you should see 4 ticks in the program list beside BitComet).

Other firewalls and advanced rules

If you wish to configure ‘Advanced rules’ in your firewall for BitComet, BitComet.exe needs access through the following ports:

TCP
Local Ports - Outgoing Traffic: 1024-5000
Local Ports - Incoming Traffic: your chosen ‘Listen Port’
Remote Ports - Outgoing Traffic: All
Remote Ports - Incoming Traffic: All

UDP
Local Ports - Outgoing Traffic: your chosen ‘Listen Port’
Local Ports - Incoming Traffic: your chosen ‘Listen Port’
Remote Ports - Outgoing Traffic: All
Remote Ports - Incoming Traffic: All

Instructions on how to configure hardware or software firewall(s) not mentioned here can be found at firewalling.com, or read your user guide.

3) Limit your upload speed to 80% of your maximum

With TCP/IP networking, every piece of data that is received must be acknowledged by a small outbound packet. So if you’re uploading at full speed, your connection will have trouble letting the people who you’re downloading from know that you’ve received the data they sent you and are ready for them to send some more - and your download rate will suffer. This is known as ‘choking’.

Limiting your upload rate to around 80% of your real-world upload speed will leave enough room to send these acknowledgement packets.

To determine your maximum upload speed, do a speed test at dslreports.com/stest. Make sure you’re not downloading/uploading anything while this speed test is working or you will get false results. It will provide you with a download and upload speed at the top of the page in kbps (e.g. 1223 / 240). In this case your upload speed would be 240kbps, so divide this number by 8 to convert it to KB/s and then multiply it by .8 to get 80% of your real-world upload speed (in this case the final result would be 24).

Then just enter this number in BitComet: Options > Preferences “Global Max Upload Rate”

4) Increase the number of connections BitComet can use

By default, BitComet allows very few peer connections per task. Although this may give slower speeds when you first install BitComet, the stability is increased, which is probably the best way to release a software like this. After people have it installed an running stable, they can start to tinker.

A good deal of extra speed can usually be gained by simply increasing the following:

Options > Preferences > Advanced > Connection > “Maximum Connections per task”
Options > Preferences > Advanced > Connection > “Connections to keep per task”

I have set my “Maximum Connections per task” to 150 and my “Connections to keep per task” to 100 which gives me great speeds. But you should experiment to see what works best for your modem/router and internet connection.

Please note that more isn’t always better and setting these values too high could give you slower speeds and/or make your modem/router disconnect. For example, some people will tell you to set the “Maximum Connections per task” to 1000… while it might work great for them, it could have a negative effect on your setup.

5) Select a Fast Tracker

Public trackers usually give poor speeds compared to Private trackers, but they have more content. Public trackers can be used by anyone and there are rarely any penalties towards those who choose not to upload, so they generally give slower speeds. Private trackers require (free) membership and members must maintain a certain download:upload ratio, so there are a lot more people uploading (’seeding’) and downloads are much faster.

If you want faster download speeds, try using a private tracker that has a better seed to peer ratio (more people uploading).

A big list of torrent sites & trackers (both public and private) can be found here.

by

Destiny

Technorati Tags: Bitcomet

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This entry was posted on Monday, March 27th, 2006 at 8:39 pm and is filed under Technology. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.