Why can't I get over 8 connections on my client?

19

4

How do I make my client acquire more than 8 connections? What settings in firewall and operating system, or flags at execution do I need to use to allow it?

Jader Dias

Posted 2011-09-02T21:02:51.877

Reputation: 487

See also http://bitcoin.stackexchange.com/q/2378/659 for a similar question.

– Chris Moore – 2012-02-20T08:35:26.993

1Could you possibly expand on this question to make it less specific? This has nothing to do with ubuntu or scripts. – Evil Spork – 2011-09-03T19:54:31.950

@Evil I understand your concern. I haven't devised a clever way to do that though. – Jader Dias – 2011-09-04T01:51:25.383

I edited it, though since I do not yet have editing permissions, others need to approve it. – Evil Spork – 2011-09-04T02:04:12.063

@Evil I approved it – Jader Dias – 2011-09-04T02:12:33.650

Answers

14

Typically connection counts of 10 or lower usually indicate that you are behind a router or firewall that is not configured properly. Try enabling UPnP from within the Bitcoin client's options dialog. If that doesn't work, try manually forwarding port 8333 to the computer which is running the Bitcoin client/daemon.

David Perry

Posted 2011-09-02T21:02:51.877

Reputation: 13 848

2@EvilSpork is right. For easiest solution use UPnp. For the manual but much safer solution use port forwarding. Also having open inbound connection port (eithe manual or uPnp) also makes the rest of the network stronger. Firewalled clients can only receive connections from non-firealled clients so your open inbond port improves the connection access of nearby firewalled clients. – DeathAndTaxes – 2011-10-17T13:03:33.120

1One thing I would add is that only one client on a network subnet (your home LAN) needs inbound connection. The clients are "smart" enough to look for peers on local network first so if one client on your home LAN gets a new transaction it will be relayed to all other clients on the LAN. – DeathAndTaxes – 2011-10-17T13:05:18.997

Is this information still current? – Murch – 2015-02-22T23:07:16.003

You're right. The UPnP was activated by default but not working. The router was forwarding to an old IP address, and I fixed it by reseting it, so nothing changed on the PC. – Jader Dias – 2011-09-02T22:14:58.580

2The outbound connection limit is exactly 8, the inbound connections are only limited by the -maxconnections total which is usually 125 (version 0.3.25). – Stéphane Gimenez – 2011-09-02T22:21:41.823

1Thanks! It helped me realize my router had UPnP off. *facepalm – None – 2011-09-03T07:15:14.243

@Rabbit67890 Some experts turn it off for security reasons. They rather forward the port manually. – Jader Dias – 2011-09-03T15:33:30.113

@Jader Dias Those experts are generally correct. UPnP is VERY frequently used by hijacking software to get through routers and allow non-standard ports to be opened for malicious purposes. Without that, the firewall will generally drop the strange traffic on the floor, or it will be restricted to a standard port. I've always felt that UPnP was a terrible idea. – Evil Spork – 2011-09-03T19:53:11.203

-2

A)

To disable the half-open TCP connections limit, set the value of the
EnableConnectionRateLimiting DWORD registry entry to 0 (0x00000000). To do this, follow these steps:

 1.       Click Start, type regedit in the Start Search box, and then click       
 regedit.exe in the Programs list. If you are prompted for an administrator   
 password or for confirmation, type your password, or click Continue.
  1. Locate and then double-click the following registry key:
 HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters               
 \EnableConnectionRateLimiting

  1. In the Value data box, type 0, and then click OK.

  2. Exit Registry Editor.

 5.       Restart the computer.

B) Open the command prompt and use the following opening switches, alternatively you could plug the switches into the properties of your exec. shortcut.

bitcoin-qt -maxconnections=1000 -maxreceivebuffer=5000 -maxsendbuffer=128 -upnp=1 -seednode=69.246.237.30:8333 -seednode=66.103.14.157:8333 -seednode=47.221.170.251:8333 -seednode=207.172.126.186:8433 -seednode=68.99.179.170:8333 -seednode=52.54.198.224:8433 -seednode=73.252.200.173:8333 -seednode=96.249.247.157:8333 -seednode=47.147.194.182:8333 -seednode=98.206.255.202:8333 -seednode=70.62.132.134:9333 -seednode=107.189.36.4:8333 -seednode=35.198.150.233:8333 -seednode=100.8.165.86:8333 -seednode=100.11.81.93:8333 -seednode=72.224.101.65:8334 -seednode=136.61.154.117:8333 -seednode=34.225.107.142:8333 -seednode=70.181.115.20:8333 -seednode=47.88.33.248:8333 -seednode=54.175.243.122:8333 -seednode=107.23.184.33:8333 -seednode=54.183.187.249:8333 -seednode=13.56.168.64:8333 -seednode=54.183.216.238:8333 -seednode=47.88.76.190:8333 -seednode=54.215.248.143:8333 -seednode=47.88.32.206:8333 -seednode=47.88.78.14:8333 -seednode= -seednode=[2001:470:b3d5:1:641c:6bff:fe9d:bccf]:8333 -seednode=[2601:601:1380:395:c1a:622c:4dd5:363d]:8333 -seednode=[2601:240:d002:2979:69fc:f725:bdc:d8ec]:8333 -seednode=[2601:601:cf80:3e44:f34:2645:867d:f7f6]:8333 -seednode=[2601:441:4480:1618:1077:aa2c:2d9:b5e]:8333 -seednode=[2601:441:4480:1618:1077:aa2c:2d9:b5e]:8333 -seednode=2601:c0:c100:1880:21f:5bff:fe3c:6e84]:8333 -seednode=[2603:3024:181e:3200:ec4:7aff:fe6b:8826]:8333 -seednode=[2601:445:4380:3692:260a:64ff:fe92:15ed]:8333 -seednode=[2001:558:6024:8:45ab:91b9:1f6c:f673]:8333 -seednode=2601:241:301:3ca5:45ff:3590:18bb:abc3]:8333 -seednode=[2601:380:4102:abe0:c9b2:6874:d4aa:2dfc]:8333 -seednode=[2601:446:c200:3580:7161:8278:33fe:effa]:8333 -seednode=[2601:644:8600:4875:470:de72:7c3e:f326]:8333 -seednode=2601:6c3:8380:143c:134:2d28:b933:755d]:8333 -seednode=[2601:1c2:600:bb:ab55:7b10:9f49:c333]:8333 -seednode=[2603:3024:1890:0:88f7:b3ff:feda:18d5]:8333 -seednode=[2002:496d:6fc3:e472:604b:e70c:fe47:d969]:8333 -seednode=2601:408:8100:1480:8ccc:6d53:5a67:2f82]:8333 -seednode=[2601:408:8100:1480:8ccc:6d53:5a67:2f82]:8333 -seednode=[2601:40a:202:6ff0:7cb9:6352:19df:f2b6]:8333 -seednode=[2603:3022:501:7800:495c:728c:ed5d:5d75]:8333 -seednode=2601:152:4400:1d50:30d6:854e:d379:2be]:8333 -seednode=[2601:101:c100:cd69:cd5a:41e:ff56:cf5d]:8333 -seednode=[2601:646:8e80:3ff9:d250:99ff:fe83:a470]:8333 -seednode=[2002:c1c6:6623::c1c6:6623]:8333 -seednode=[2002:58de:961e::58de:961e]:8333 -seednode=[2a04:c000:ed51:917:68::1]:8333 -seednode=[2605:a601:a48:a900:3c1a:85a:1a1:120a]:8333 -seednode=[2001:470:1f12:1dd::2]:8333 -seednode=[2001:470:1f12:1dd::2]:8333 -seednode=[2001:19f0:ac01:3f7:5400:1ff:fe43:e94b]:8333 -seednode=[2604:e880:0:15:ec4:7aff:fe4a:40e1]:8333 -addnode=69.246.237.30:8333 -addnode=66.103.14.157:8333 -addnode=47.221.170.251:8333 -addnode=207.172.126.186:8433 -addnode=68.99.179.170:8333 -addnode=52.54.198.224:8433 -addnode=73.252.200.173:8333 -addnode=96.249.247.157:8333 -addnode=47.147.194.182:8333 -addnode=98.206.255.202:8333 -addnode=70.62.132.134:9333 -addnode=107.189.36.4:8333 -addnode=35.198.150.233:8333 -addnode=100.8.165.86:8333 -addnode=100.11.81.93:8333 -addnode=72.224.101.65:8334 -addnode=136.61.154.117:8333 -addnode=34.225.107.142:8333 -addnode=70.181.115.20:8333 -addnode=47.88.33.248:8333 -addnode=54.175.243.122:8333 -addnode=107.23.184.33:8333 -addnode=54.183.187.249:8333 -addnode=13.56.168.64:8333 -addnode=54.183.216.238:8333 -addnode=47.88.76.190:8333 -addnode=54.215.248.143:8333 -addnode=47.88.32.206:8333 -addnode=47.88.78.14:8333 -addnode= -addnode=[2001:470:b3d5:1:641c:6bff:fe9d:bccf]:8333 -addnode=2601:601:1380:395:c1a:622c:4dd5:363d]:8333 -addnode=[2601:240:d002:2979:69fc:f725:bdc:d8ec]:8333 -addnode=[2601:601:cf80:3e44:f34:2645:867d:f7f6]:8333 -addnode=[2601:441:4480:1618:1077:aa2c:2d9:b5e]:8333 -addnode=2601:441:4480:1618:1077:aa2c:2d9:b5e]:8333 -addnode=[2601:c0:c100:1880:21f:5bff:fe3c:6e84]:8333 -addnode=[2603:3024:181e:3200:ec4:7aff:fe6b:8826]:8333 -addnode=[2601:445:4380:3692:260a:64ff:fe92:15ed]:8333 -addnode=[2001:558:6024:8:45ab:91b9:1f6c:f673]:8333 -addnode=[2601:241:301:3ca5:45ff:3590:18bb:abc3]:8333 -addnode=[2601:380:4102:abe0:c9b2:6874:d4aa:2dfc]:8333 -addnode=[2601:446:c200:3580:7161:8278:33fe:effa]:8333 -addnode=2601:644:8600:4875:470:de72:7c3e:f326]:8333 -addnode=[2601:6c3:8380:143c:134:2d28:b933:755d]:8333 -addnode=[2601:1c2:600:bb:ab55:7b10:9f49:c333]:8333 -seednode=[2603:3024:1890:0:88f7:b3ff:feda:18d5]:8333 -addnode=2002:496d:6fc3:e472:604b:e70c:fe47:d969]:8333 -addnode=[2601:408:8100:1480:8ccc:6d53:5a67:2f82]:8333 -addnode=[2601:408:8100:1480:8ccc:6d53:5a67:2f82]:8333 -addnode=[2601:40a:202:6ff0:7cb9:6352:19df:f2b6]:8333 -addnode=2603:3022:501:7800:495c:728c:ed5d:5d75]:8333 -addnode=[2601:152:4400:1d50:30d6:854e:d379:2be]:8333 -addnode=[2601:101:c100:cd69:cd5a:41e:ff56:cf5d]:8333 -addnode=[2601:646:8e80:3ff9:d250:99ff:fe83:a470]:8333 -addnode=[2002:c1c6:6623::c1c6:6623]:8333 -addnode=[2002:58de:961e::58de:961e]:8333 -addnode=[2a04:c000:ed51:917:68::1]:8333 -addnode=[2605:a601:a48:a900:3c1a:85a:1a1:120a]:8333 -addnode=[2001:470:1f12:1dd::2]:8333 -addnode=[2001:470:1f12:1dd::2]:8333 -addnode=[2001:19f0:ac01:3f7:5400:1ff:fe43:e94b]:8333 -addnode=[2604:e880:0:15:ec4:7aff:fe4a:40e1]:8333

Eric B.

Posted 2011-09-02T21:02:51.877

Reputation: 1

1This is unrelated to OP's question. – Pieter Wuille – 2017-12-04T18:43:44.667

Asked: 2011-09-02T21:02:51.877

Viewed: 13 259 times

Active: 2017-12-04T17:39:18.177