Difference between revisions of "Bloominglabs Network"

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(Link to this page online)
(updated for 2020)
 
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This is information pertaining to the physical network that resides inside Bloominglabs. If you want to make changes and improve our network that's great! If you want to do it without talking to anyone first, that's terrible! We ask is that you communicate with the rest of the group before making significant changes (like replacing the wifi router, core switch, or embark on a major rewiring). Otherwise, please have fun!
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This is information pertaining to the physical network that resides inside Bloominglabs. If you want to make changes and improve our network that's great! If you want to do it without talking to anyone first, that's terrible! We ask that you communicate with the rest of the group before making significant changes.  
  
 +
Please note that some of the equipment in our network closest is shared with other tenants in the building, so please don't power anything off or move cables unless you are absolutely certain of what you are doing.
  
== DHCP ==
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Otherwise, please have fun!
Both our wifi and our hardline have DHCP available. Currently there is a limit of 50 DHCP leases free for use. If you are placing a device on the network semi-long term, please consider configuring it with a static IP for both your convenience and ours.
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== DHCP ==
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Both our WiFi and our hardwired ports have DHCP available. If you are placing a device on the network semi-long term, please consider configuring it with a static IP for both your convenience and ours.
  
 
== Setting up a Static IP ==
 
== Setting up a Static IP ==
Static IP's should be placed below 192.168.1.125. Use these settings:
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We can assign a static IP or set up a DHCP reservation based on your device's MAC address.
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Static IP addresses should be placed below 192.168.1.125. Use these settings:
  
 
* Netmask 255.255.255.0
 
* Netmask 255.255.255.0
 
* Gateway 192.168.1.1
 
* Gateway 192.168.1.1
* DNS 8.8.8.8
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* DNS 192.168.1.1
  
Last but not least, please drop the members mailing list a note so others don't stumble over your handiwork.
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== NTP ==
 
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== NTP and Syslog ==
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We have an ntp server, add this to /etc/ntp.conf and restart your ntpd:
 
We have an ntp server, add this to /etc/ntp.conf and restart your ntpd:
 
<pre>
 
<pre>
Line 29: Line 30:
 
# noquery
 
# noquery
 
</pre>
 
</pre>
 
Syslog can be sent to this box:
 
<pre>
 
192.168.1.7
 
</pre>
 
 
 
== Syncing /etc/hosts ==
 
We could setup a proper DNS server... Or you could run this sync script on your host to keep your /etc/hosts file synced with our static IP list.
 
* [https://bloominglabs.no-ip.org:8888/sync https://bloominglabs.no-ip.org:8888/sync]
 
* [https://192.168.1.2:8888/sync https://192.168.1.2:8888/sync]
 
 
 
== Network monitoring ==
 
We have passive network monitoring running for experimental and monitoring purposes. If you inside the space you can see the logs here:
 
* [http://192.168.1.7/current http://192.168.1.7/current]
 
 
The list of active DHCP leases is availble here from within the space:
 
* [https://192.168.1.2:8888/reports/dhcpclients.html https://192.168.1.2:8888/reports/dhcpclients.html]
 
 
  
 
== Switches ==
 
== Switches ==
We have a 48 port Cisco switch in the server closet. There is also a 16 port HP switch on the office table, and several smaller hubs at various end-points in the space.
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We have two 24-port managed switches in the network closet. There are several smaller unmanaged switches at various end-points in the space.
 
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== Extending the network ==
 
== Extending the network ==
We have no issues with folks extending the network with switches and hubs. However if the device has an in-band management interface (has its own IP address) make sure it doesn't clobber anything currently existing.  
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We have no issues with folks extending the wired network with switches and hubs. However if the device has an in-band management interface (has its own IP address) make sure it doesn't clobber anything currently existing. Please do not extend the WiFi network.
 
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== Wiring ==
 
== Wiring ==
There are three strands of CAT5 running through the central dividing wall. Two of them are live and the third is still dark at the moment of this writing (1-2016). Be aware that there are several strands of CAT5 which are NOT ethernet running through the space supporting other wiring needs. If you find an unplugged RJ45 connector on a long run of CAT5, it may be worth asking what it is before plugging it in to a network device.
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Be aware that there are several strands of CAT5 which are NOT ethernet running through the space supporting other wiring needs. If you find an unplugged RJ45 connector on a long run of CAT5, it may be worth asking what it is before plugging it in to a network device.
 
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== Link to this page online ==
 
== Link to this page online ==

Latest revision as of 10:52, 1 May 2020

This is information pertaining to the physical network that resides inside Bloominglabs. If you want to make changes and improve our network that's great! If you want to do it without talking to anyone first, that's terrible! We ask that you communicate with the rest of the group before making significant changes.

Please note that some of the equipment in our network closest is shared with other tenants in the building, so please don't power anything off or move cables unless you are absolutely certain of what you are doing.

Otherwise, please have fun!

Contents

[edit] DHCP

Both our WiFi and our hardwired ports have DHCP available. If you are placing a device on the network semi-long term, please consider configuring it with a static IP for both your convenience and ours.

[edit] Setting up a Static IP

We can assign a static IP or set up a DHCP reservation based on your device's MAC address.

Static IP addresses should be placed below 192.168.1.125. Use these settings:

  • Netmask 255.255.255.0
  • Gateway 192.168.1.1
  • DNS 192.168.1.1

[edit] NTP

We have an ntp server, add this to /etc/ntp.conf and restart your ntpd:

server 192.168.1.2

You may also wish to add this to your /etc/ntpd.conf to prevent abuse of your box:

# Prevent participation in DDOS attacks.
disable monitor
# noquery bans all status queries if needed
# noquery

[edit] Switches

We have two 24-port managed switches in the network closet. There are several smaller unmanaged switches at various end-points in the space.

[edit] Extending the network

We have no issues with folks extending the wired network with switches and hubs. However if the device has an in-band management interface (has its own IP address) make sure it doesn't clobber anything currently existing. Please do not extend the WiFi network.

[edit] Wiring

Be aware that there are several strands of CAT5 which are NOT ethernet running through the space supporting other wiring needs. If you find an unplugged RJ45 connector on a long run of CAT5, it may be worth asking what it is before plugging it in to a network device.

[edit] Link to this page online

If you are viewing hard-copy, check out the latest version of this page.

Link to latest version of this doc
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