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Subject: Windows won't let client machine in on distccd port 3632
To: =?UTF-8?Q?S=C3=B6ren_Andersen?= <somian08 AT gmail DOT com>, cygwin AT cygwin DOT com
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From: Soren via Cygwin <cygwin AT cygwin DOT com>
Reply-To: Soren <somian08 AT gmail DOT com>
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Hello Good Folk (no, I'm not implying that you're fairies masquerading as
computer geniuses ;-).
This is a cry for help, and it's admittedly not squarely cygwin-centered,
but tangentially related. I'm operating on an assumption that I think is
sound, which is that Cygwin users know a lot about how Windows works (or
doesn't). I've been struggling with this for months. My Windows 11 computer
is toggled to set the LAN connection as >>Private network (Active) /
Firewall is off<<. According to that, I should be able to connect from a
remote computer on the LAN to any port I need. But no.

As far as I discern, Microsoft lies about this. If I don't make an
exception for port 22 (SSH), for example, I can't login from another system
(I have, erm, several - mostly running Gnu/Linux).

In the case of distcc the standard (default) port is 3632. I added that
program and port to the exceptions list but when I run a compilation on the
other Cygwin machine I see distcc on that machine giving the message:

    distcc[18828] ERROR: nonblocking connect to 192.168.1.9:3632 failed:
Connection refused

Lots of mostly useless info follows.
-----------------------------------------------------------------

OS Name Microsoft Windows 11 Pro
Version 10.0.26200 Build 26200

System Manufacturer     Micro-Star International Co., Ltd.
System Model    PRO H610 DP21 13M (MS-B0A4)
System Type     x64-based PC
System SKU      B0A4.A
Processor       13th Gen Intel(R) Core(TM) i7-13700, 2100 Mhz, 16
Core(s), 24 Logical Processor(s)
BIOS Version/Date       American Megatrends International, LLC. A.80, 5/9/2023
SMBIOS Version  2.8
Embedded Controller Version     255.255
BIOS Mode       UEFI
BaseBoard Manufacturer  Micro-Star International Co., Ltd.
BaseBoard Product       MS-B0A41
BaseBoard Version       1.0
Platform Role   Desktop
Secure Boot State       On
PCR7 Configuration      Elevation Required to View
Windows Directory       C:\WINDOWS
System Directory        C:\WINDOWS\system32
Boot Device     \Device\HarddiskVolume1
Locale  United States
Hardware Abstraction Layer      Version = "10.0.26100.1"
User Name       desktop-msi\soren
Time Zone       Eastern Standard Time
Installed Physical Memory (RAM) 64.0 GB
Total Physical Memory   63.8 GB
Available Physical Memory       58.9 GB
Total Virtual Memory    67.8 GB
Available Virtual Memory        62.8 GB
Page File Space 4.00 GB
Page File       C:\pagefile.sys
Kernel DMA Protection   On
Virtualization-based security   Not enabled
App Control for Business policy Enforced
App Control for Business user mode policy       Off
Automatic Device Encryption Support     Elevation Required to View
Hyper-V - VM Monitor Mode Extensions    Yes
Hyper-V - Second Level Address Translation Extensions   Yes
Hyper-V - Virtualization Enabled in Firmware    Yes
Hyper-V - Data Execution Protection     Yes

-----------------------------------------------------------------

Any suggestions? e.g. should I try to set up distcc to tunnel through an
SSH connection?

-- 
Soren 'tino

He's earthy, he's pithy, he's ...a bit astringent.
Think of him more as a "topical antiseptic" than as a snack.

-- 
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