Sony VPL-FE40 - Projector default credentials

Username: root. Password: password

HP Printers (Enterprise/Networked) - Change display message

To change the message on the front display, use telnet into the printer on port 9100. Run command: @PJL RDYMSG DISPLAY="YOUR MESSAGE HERE"

Pi Hole DHCP on Fedora

If you have trouble with Pi Hole's DHCP server on Fedora i.e. It doesnt offer any addresses, then you probably need to whitelist it in the firewall.

firewall-cmd --add-service=dhcp --permanent | firewall-cmd --reload

Avaya (9608/96x1) Deskphone SIP- HTTP Server

If you have an Avaya IP phone and you want to serve files to it, upload your 46xxSettings.txt and 96x1Supgrade.txt (and/or 96x1Hupgrade.txt) file to the root of the server.

For everything else that gets loaded, you can put it in a sub directory if you define HTTPDIR = subdir (e.g. HTTPDIR=avaya which is equal to http://server/avaya/) in your 46xxSettings.txt file. All subsequent files will load from this directory including upgrades.

Avaya (9608/96x1) Deskphone SIP- DHCP Option 242

To boot a phone using DHCP option 242, you must have the following items: MCIPADD={Call Server IP},HTTPSRVR={Config Server IP}.

In dnsmaq, you would add: dhcp-option=242,"MCIPADD=192.168.0.45,HTTPSRVR=192.168.0.45"

In linux dhcp server, you would add: option 242 ascii MCIPADD=192.168.0.45,HTTPSRVR=192.168.0.45

Intel IO_MMU on fedora + Grub2

To enable IOMMU on Fedora 29+, edit this file: /etc/default/grub and add intel_iommu=on to the end of the to the GRUB_CMDLINE_LINUX entry.

Then run the command grub2-mkconfig -o /boot/grub2/grub.cfg and reboot.

Bind DNS Server: Failed to create fetch for DNSKEY update

Add the following into the main options in the named.conf<:

dnssec-enable yes;
dnssec-validation yes;

Zoneminder MegaPixel IP Camera PTZ

Place this file into /usr/share/perl5/vendor_perl/Zoneminder/Control.

In Zoneminder, goto http://ZONEMINDER_URL/zm/index.php?view=controlcaps and "Add new control".

Use the following settings to configure the control. Where there is no setting for a field, leave it blank or default.

• Name: MegaPixel IP Camera
• Type: cURL
• Protocol: MegaPixel
• Can Wake: Yes
• Can reset: Yes

In the Move tab:

• Can move: Yes
• Can move diagonally: Yes
• Can move relative: Yes

In the Pan tab:

• Can pan: Yes
• Has pan speed: Yes
• Min pan speed: 1
• Max pan speed: 8

In the Zoom tab:

• Can zoom: Yes
• Can zoom relative: Yes
• Has zoom speed: Yes
• Min zoom speed: 1
• Max zoom speed: 2

In the Focus tab:

• Can focus: Yes
• Can focus relative: Yes
• Has focus speed: Yes
• Min focus speed: 1
• Max focus speed: 2

Whilst the camera does support gain and white balance, the perl script does not implement this yet.

In the Iris tab:

• Can iris: Yes
• Can iris relative: Yes

In the Presets tab:

Note: This camera can support up to 255 presets, but you might want to limit the amount to the below.

• Has presets: Yes
• Num presets: 20
• Has home preset: Yes (Preset 1)
• Can set preset: Yes

After creating the control, goto the camera source that has the MegaPixel IP camera and goto the Control tab. Tick the "Controllable" box, select MegaPixel IP Camera from the Control type, set Control Device to MainStream.

In Control Address, enter the URL to the camera. This should be prefixed with the username and password, and should look something like: username:password@MY_CAMERA_IP e.g. marcus:[email protected]

Set Auto Stop Timeout to something low e.g. 0.25/0.5, then your done.