HOWTO: Remotely Access your Folding Systems - Part 1 FAHControl

Ben17 · April 2, 2020

On 4/1/2020 at 4:21 PM, mightyskull said:

I've tried whitelisting specific IPs too. The client refuses to accept it.

just a tip btw if you can't see the web viewer try opening incongtico mode in chrome or other browser and typing in

https://client.foldingathome.org/

Gorgon · April 3, 2020

@HaRdLy007 can you post your remote config from /etc/fahclient/config.xml file from the Linux Box.

It should look like this:

 <!-- HTTP Server -->
  <allow v='127.0.0.1 192.168.1.0/24'/>

  <!-- Remote Command Server -->
  <command-allow-no-pass v='127.0.0.1 192.168.1.0/24'/>

HaRdLy007 · April 3, 2020

@Gorgon as you asked.

Quote


<allow v='127.0.0.1 192.168.1.0/24'/>


<proxy v=':8080'/>


<command-allow-no-pass v='127.0.0.1 192.168.1.0/24'/>

Gorgon · April 3, 2020

1 minute ago, HaRdLy007 said:


<allow v='127.0.0.1 192.168.1.0/24'/>


<proxy v=':8080'/>


<command-allow-no-pass v='127.0.0.1 192.168.1.0/24'/>

That looks correct. have you restarted the FAHclient

service FAHClient restart

so it will read the new config?

HaRdLy007 · April 3, 2020

4 minutes ago, Gorgon said:
That looks correct. have you restarted the FAHclient
service FAHClient restart
so it will read the new config?

I have even tried stop and start, still not able to connect from my windows machine

Gorgon · April 3, 2020

Just now, HaRdLy007 said:

I have even tried stop and start, still not able to connect from my windows machine

and your home network is 192.168.1.0/24?

Have you tried using PuTTY or another Telnet client to connect to the Linux box on port 36330?

telnet 192.168.1.X 36330

should give you:

Welcome to the Folding@home Client command server.                                                                                                                        >

The output will be mangled on the Microsoft TELNET client but will still show if you can open that port

HaRdLy007 · April 3, 2020

8 minutes ago, Gorgon said:
and your home network is 192.168.1.0/24?

Have you tried using PuTTY or another Telnet client to connect to the Linux box on port 36330?
telnet 192.168.1.X 36330
should give you:
Welcome to the Folding@home Client command server.                                                                                                                        > 
The output will be mangled on the Microsoft TELNET client but will still show if you can open that port

Yes network is 192.168.1.0/24. I've tried to telnet to 192.168.1.13 and it times out.

Gorgon · April 3, 2020

Just now, HaRdLy007 said:

Yes network to 192.168.1.0/24. I've tried to telnet to 192.168.1.13 and it times out.

Ahh OK. So it looks like it could be something on the Linux Side then.

On the Linux Box can you confirm the FAHClient is running?

telnet localhost 36330

Welcome to the Folding@home Client command server.
> slot-info

PyON 1 slots
[
  {
    "id": "00",
    "status": "RUNNING",
    "description": "cpu:14",
    "options": {"paused": "false"},
    "reason": "",
    "idle": False
  },
  {
    "id": "01",
    "status": "RUNNING",
    "description": "gpu:0:Navi 10 [Radeon RX 5600 OEM/5600 XT / 5700/5700 XT]",
    "options": {"opencl-index": "0", "paused": "false"},
    "reason": "",
    "idle": False
  },
  {
    "id": "02",
    "status": "RUNNING",
    "description": "gpu:1:Navi 10 [Radeon RX 5600 OEM/5600 XT / 5700/5700 XT]",
    "options": {"gpu-index": "1", "opencl-index": "1", "paused": "false"},
    "reason": "",
    "idle": False
  }
]
---
> ppd

PyON 1 ppd
1871780.774178
---
> quit

and take a look at the network interface:


root@host:~# ifconfig
enp4s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.13  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::25e0:a6c6:3d04:1da3  prefixlen 64  scopeid 0x20<link>
        ether e0:d5:5e:24:00:47  txqueuelen 1000  (Ethernet)
        RX packets 1752294  bytes 1561801304 (1.5 GB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1231546  bytes 622773963 (622.7 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device memory 0xfc500000-fc51ffff

HaRdLy007 · April 3, 2020

jpetovello@TestBench:~$ telnet localhost 39330
Trying 127.0.0.1...
telnet: Unable to connect to remote host: Connection refused
jpetovello@TestBench:~$

and

jpetovello@TestBench:~$ ifconfig
enp0s31f6: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.13  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::724d:7bff:fe2d:7219  prefixlen 64  scopeid 0x20<link>
        ether 70:4d:7b:2d:72:19  txqueuelen 1000  (Ethernet)
        RX packets 48088  bytes 36144051 (36.1 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 20870  bytes 4153580 (4.1 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 16  memory 0xdff00000-dff20000  

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 4143  bytes 1246544 (1.2 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 4143  bytes 1246544 (1.2 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

HaRdLy007 · April 3, 2020

Is the Proxy part really needed, as the 3 windows machine ~~don't~~ have that in their config files and I have no problem connecting to them with telnet/hfm/control

Edited April 3, 2020 by HaRdLy007
Wrong, nevermind as it is in their configs

Gorgon · April 3, 2020

4 minutes ago, HaRdLy007 said:


jpetovello@TestBench:~$ telnet localhost 39330
Trying 127.0.0.1...
telnet: Unable to connect to remote host: Connection refused
jpetovello@TestBench:~$

"Connection Refused" means that there is either a firewall enabled on the Linux Box or the service is not running.

Try netstat on the Linux Box to see if the service is listening


netstat -anp | grep 36330
tcp        0      0 0.0.0.0:36330           0.0.0.0:*               LISTEN      1057/FAHClient
tcp        0      0 127.0.0.1:36330         127.0.0.1:55618         TIME_WAIT   -
tcp        0      0 127.0.0.1:36330         127.0.0.1:55610         TIME_WAIT   -
tcp        0      0 192.168.1.13:36330     192.188.1.2:61415      ESTABLISHED 1057/FAHClient
tcp        0      0 192.168.1.13:36330     192.168.1.2:61603      ESTABLISHED 1057/FAHClient
tcp        0      0 127.0.0.1:36330         127.0.0.1:55608         TIME_WAIT   -

HaRdLy007 · April 3, 2020

2 minutes ago, Gorgon said:

"Connection Refused" means that there is either a firewall enabled on the Linux Box or the service is not running.

Try netstat on the Linux Box to see if the service is listening


netstat -anp | grep 36330
tcp        0      0 0.0.0.0:36330           0.0.0.0:*               LISTEN      1057/FAHClient
tcp        0      0 127.0.0.1:36330         127.0.0.1:55618         TIME_WAIT   -
tcp        0      0 127.0.0.1:36330         127.0.0.1:55610         TIME_WAIT   -
tcp        0      0 192.168.1.13:36330     192.188.1.2:61415      ESTABLISHED 1057/FAHClient
tcp        0      0 192.168.1.13:36330     192.168.1.2:61603      ESTABLISHED 1057/FAHClient
tcp        0      0 127.0.0.1:36330         127.0.0.1:55608         TIME_WAIT   -

jpetovello@TestBench:~$ sudo netstat -anp | grep 36330
[sudo] password for jpetovello:
tcp        0      0 0.0.0.0:36330           0.0.0.0:*               LISTEN      6435/FAHClient      
tcp        0      0 127.0.0.1:60336         127.0.0.1:36330         ESTABLISHED 6087/python         
tcp        0      0 127.0.0.1:36330         127.0.0.1:60336         ESTABLISHED 6435/FAHClient

Gorgon · April 3, 2020

1 minute ago, HaRdLy007 said:


jpetovello@TestBench:~$ sudo netstat -anp | grep 36330
[sudo] password for jpetovello:
tcp        0      0 0.0.0.0:36330           0.0.0.0:*               LISTEN      6435/FAHClient      
tcp        0      0 127.0.0.1:60336         127.0.0.1:36330         ESTABLISHED 6087/python         
tcp        0      0 127.0.0.1:36330         127.0.0.1:60336         ESTABLISHED 6435/FAHClient

OK so it appears the FAHClient is listening on all interfaces (0.0.0.0)

Is there a firewall installed on the system?

can you ping it from windows?

HaRdLy007 · April 3, 2020

2 minutes ago, Gorgon said:

OK so it appears the FAHClient is listening on all interfaces (0.0.0.0)

Is there a firewall installed on the system?

can you ping it from windows?

C:\Windows\system32>ping 192.168.1.13

Pinging 192.168.1.13 with 32 bytes of data:
Reply from 192.168.1.13: bytes=32 time<1ms TTL=64
Reply from 192.168.1.13: bytes=32 time<1ms TTL=64
Reply from 192.168.1.13: bytes=32 time<1ms TTL=64
Reply from 192.168.1.13: bytes=32 time<1ms TTL=64

Ping statistics for 192.168.1.13:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 0ms, Average = 0ms

C:\Windows\system32>

Gorgon · April 3, 2020

17 minutes ago, HaRdLy007 said:


jpetovello@TestBench:~$ telnet localhost 39330
Trying 127.0.0.1...
telnet: Unable to connect to remote host: Connection refused
jpetovello@TestBench:~$

Just noticed - should be 36330 not 39330

HaRdLy007 · April 3, 2020

1 minute ago, Gorgon said:

Just noticed - should be 36330 not 39330

Welcome to the Folding@home Client command server.
>

Gorgon · April 3, 2020

Ah

4 minutes ago, HaRdLy007 said:
Welcome to the Folding@home Client command server.
> 

Ahh - OK. I mis read your previous post and thought you were trying the telnet from the windows system and not the TestBench.

So we know the FAHClient is up and running on the Linux system and should accept connections from your local network.

What happens when you try

telnet 192.168.1.13 36330

from a command prompt on the windows system

HaRdLy007 · April 3, 2020

Just now, Gorgon said:
Ah

Ahh - OK. I mis read your previous post and thought you were trying the telnet from the windows system and not the TestBench.

So we know the FAHClient is up and running on the Linux system and should accept connections from your local network.

What happens when you try
telnet 192.168.1.13 36330
from the windows system

It times out as well.

Gorgon · April 3, 2020

times out rather than connection refused? A Time out indicates it can't reach the system. Curious as you can ping it so we know you have network connectivity.

Is it possible you have an IP address conflict and another system on the network has the same IP?

I'm assuming the windows system is on the same network?

Have you tried rebooting the linux system?

HaRdLy007 · April 3, 2020

C:\Windows\system32>telnet 192.168.1.13 36330
Connecting To 192.168.1.13...Could not open connection to the host, on port 36330: Connect failed

No OP address conflicts, same network and I'll try a reboot

Gorgon · April 3, 2020

2 minutes ago, HaRdLy007 said:
C:\Windows\system32>telnet 192.168.1.13 36330
Connecting To 192.168.1.13...Could not open connection to the host, on port 36330: Connect failed
No OP address conflicts, same network and I'll try a reboot

Yeah, I've noticed that sometimes stopping the FAHClient service doesn't actually stop it so it won't reload but a reboot will force it to stop.

HaRdLy007 · April 3, 2020

Still nothing. I even just tried the reverse of adding the windows machine to the Linux FAHControl

Gorgon · April 3, 2020

4 minutes ago, HaRdLy007 said:

Still nothing. I even just tried the reverse of adding the windows machine to the Linux FAHControl

Which version of Linux?

Does it have a Firewall installed?

HaRdLy007 · April 3, 2020

3 minutes ago, Gorgon said:

Which version of Linux?

Does it have a Firewall installed?

Ubuntu 18.04.4 Desktop and I never installed a firewall, so it would of been installed when i installed the OS if there is one.

Gorgon · April 3, 2020

Did you select the minimal configuration on install or just the defaults?

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HOWTO: Remotely Access your Folding Systems - Part 1 FAHControl

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