Difference between revisions of "Staging"

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(Created page with "== Becoming your own dial-up ISP in 2019 == ==== Required hardware: ==== * A hardware modem (not a software modem/winmodem, must be the real deal) * A computer to install lin...")
 
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==== Preparing the dial-in-server ====
 
==== Preparing the dial-in-server ====
−
# Install Debian/Ubuntu/Raspbian per the usual methods (not covered here)
+
<ol>
−
# Update to latest packages and reboot if required<br />
+
<li>Install Debian/Ubuntu/Raspbian per the usual methods (not covered here)</li>
−
#:<pre>
+
<li>Update to latest packages and reboot if required<br /></li>
−
#::sudo apt-get update
+
<pre>
−
#::sudo apt-get upgrade
+
sudo apt-get update
−
#::sudo reboot</pre>
+
sudo apt-get upgrade
−
# Connect USB to RS232 adapter and confirm it shows up as /dev/ttyUSBXXX
+
sudo reboot</pre>
−
In my case it presents as /dev/ttyUSB0
+
<li>Connect USB to RS232 adaptor and confirm it shows up as /dev/ttyUSBXXX (<code>ls /dev/</code> to check) In my case it presents as <code>/dev/ttyUSB0</code><br />
 +
My serial adaptor is a "<code>ID 1a86:7523 QinHeng Electronics HL-340 USB-Serial adaptor</code>" <br /><br />
 +
Full lsusb output:
 +
<pre>
 +
user@debian:~# sudo lsusb -v
 +
Bus 004 Device 003: ID 1a86:7523 QinHeng Electronics HL-340 USB-Serial adapter
 +
Device Descriptor:
 +
  bLength                18
 +
  bDescriptorType        1
 +
  bcdUSB              1.10
 +
  bDeviceClass          255 Vendor Specific Class
 +
  bDeviceSubClass        0
 +
  bDeviceProtocol        0
 +
  bMaxPacketSize0        8
 +
  idVendor          0x1a86 QinHeng Electronics
 +
  idProduct          0x7523 HL-340 USB-Serial adapter
 +
  bcdDevice            2.54
 +
  iManufacturer          0
 +
  iProduct                2 USB2.0-Ser!
 +
  iSerial                0
 +
  bNumConfigurations      1
 +
  Configuration Descriptor:
 +
    bLength                9
 +
    bDescriptorType        2
 +
    wTotalLength          39
 +
    bNumInterfaces          1
 +
    bConfigurationValue    1
 +
    iConfiguration          0
 +
    bmAttributes        0x80
 +
      (Bus Powered)
 +
    MaxPower              96mA
 +
    Interface Descriptor:
 +
      bLength                9
 +
      bDescriptorType        4
 +
      bInterfaceNumber        0
 +
      bAlternateSetting      0
 +
      bNumEndpoints          3
 +
      bInterfaceClass      255 Vendor Specific Class
 +
      bInterfaceSubClass      1
 +
      bInterfaceProtocol      2
 +
      iInterface              0
 +
      Endpoint Descriptor:
 +
        bLength                7
 +
        bDescriptorType        5
 +
        bEndpointAddress    0x82  EP 2 IN
 +
        bmAttributes            2
 +
          Transfer Type            Bulk
 +
          Synch Type              None
 +
          Usage Type              Data
 +
        wMaxPacketSize    0x0020  1x 32 bytes
 +
        bInterval              0
 +
      Endpoint Descriptor:
 +
        bLength                7
 +
        bDescriptorType        5
 +
        bEndpointAddress    0x02  EP 2 OUT
 +
        bmAttributes            2
 +
          Transfer Type            Bulk
 +
          Synch Type              None
 +
          Usage Type              Data
 +
        wMaxPacketSize    0x0020  1x 32 bytes
 +
        bInterval              0
 +
      Endpoint Descriptor:
 +
        bLength                7
 +
        bDescriptorType        5
 +
        bEndpointAddress    0x81  EP 1 IN
 +
        bmAttributes            3
 +
          Transfer Type            Interrupt
 +
          Synch Type              None
 +
          Usage Type              Data
 +
        wMaxPacketSize    0x0008  1x 8 bytes
 +
        bInterval              1
 +
Device Status:    0x0000
 +
  (Bus Powered)
 +
</pre>
 +
</li>
 +
<li>Install ppp (and getty if your distro doesn’t have it by default)<br />
 +
<pre>sudo apt-get install ppp</pre></li>
 +
<li>Many of the old guides were written when inittab was still around but its 2019 and systemd has taken over.<br />
 +
We need to create a systemd service for mgetty </br>
 +
Edit <code>/lib/systemd/system/mgetty.service</code> with your text editor of choice with elevated privileges (sudo)
 +
<pre>[Unit]
 +
Description=External Modem
 +
Documentation=man:mgetty(8)
 +
Requires=systemd-udev-settle.service
 +
After=systemd-udev-settle.service
  
−
My serial adapter is a “ID 1a86:7523 QinHeng Electronics HL-340 USB-Serial adapter”
+
[Service]
−
Full lsusb -v output:
+
Type=simple
−
(in gedit)
+
ExecStart=/sbin/mgetty -x8 /dev/ttyUSB0
−
Install ppp (and getty if your distro doesn’t have it be default)
+
Restart=always
−
sudo apt-get install ppp
+
PIDFile=/var/run/mgetty.pid.ttyUSB0
−
Many of the old guides were written when inittab was still around but its 2019 and systemd has taken over.
+
 
−
We need to create a systemd service for mgetty
+
[Install]
−
Edit /lib/systemd/system/mgetty.service
+
WantedBy=multi-user.target
 +
</pre>
 +
</li>
 +
</ol>

Revision as of 04:17, 6 February 2019

Becoming your own dial-up ISP in 2019

Required hardware:

  • A hardware modem (not a software modem/winmodem, must be the real deal)
  • A computer to install linux on to talk to the a modem (Can be anything that a modern linux distribution will run on. Raspberry Pi, Pi clone, x86 machine, etc)
  • A client device (windows 9x PC for example) with a modem
  • Some form of PSTN to connect the two modems


The exact hardware I’ve used

  • Generic x86_64 PC running Debian 9.5 x86_64
  • Matrix “MX Modem” (more on this later)
  • USB to RS232 serial adapter (DE-9) to connect to the modem (Must support hardware flow control)
  • DE-9 to DB-25 serial adapter
  • Linksys PAP2T analog telephone adapter (ATA)
  • x86 based Windows 95 PC with a US Robotics Sportster 28800 ISA modem


Software used

  • Debian 9.5 x86_64
  • PPP
  • getty
  • Asterisk


Preparing the dial-in-server

  1. Install Debian/Ubuntu/Raspbian per the usual methods (not covered here)
  2. Update to latest packages and reboot if required
    3. sudo apt-get update
sudo apt-get upgrade
sudo reboot
  3. Connect USB to RS232 adaptor and confirm it shows up as /dev/ttyUSBXXX (ls /dev/ to check) In my case it presents as /dev/ttyUSB0
    My serial adaptor is a "ID 1a86:7523 QinHeng Electronics HL-340 USB-Serial adaptor"

    Full lsusb output: 
    user@debian:~# sudo lsusb -v
Bus 004 Device 003: ID 1a86:7523 QinHeng Electronics HL-340 USB-Serial adapter
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass          255 Vendor Specific Class
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0         8
  idVendor           0x1a86 QinHeng Electronics
  idProduct          0x7523 HL-340 USB-Serial adapter
  bcdDevice            2.54
  iManufacturer           0 
  iProduct                2 USB2.0-Ser!
  iSerial                 0 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           39
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0x80
      (Bus Powered)
    MaxPower               96mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           3
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass      1 
      bInterfaceProtocol      2 
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0020  1x 32 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x02  EP 2 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0020  1x 32 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  1x 8 bytes
        bInterval               1
Device Status:     0x0000
  (Bus Powered)
  4. Install ppp (and getty if your distro doesn’t have it by default)
    sudo apt-get install ppp
  5. Many of the old guides were written when inittab was still around but its 2019 and systemd has taken over.
    We need to create a systemd service for mgetty
    Edit /lib/systemd/system/mgetty.service with your text editor of choice with elevated privileges (sudo) 
    [Unit]
Description=External Modem
Documentation=man:mgetty(8)
Requires=systemd-udev-settle.service
After=systemd-udev-settle.service

[Service]
Type=simple
ExecStart=/sbin/mgetty -x8 /dev/ttyUSB0
Restart=always
PIDFile=/var/run/mgetty.pid.ttyUSB0

[Install]
WantedBy=multi-user.target
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