Posts

Create a FreeNAS/Samba Time Machine with cross-subnet/interVLAN support without the need for a mDNS Reflector/Repeater

Image
Recently Samba and in turn FreeNAS have added support for a Samba share to act as a SMB based Time Machine Target for Apple devices. We had a need for allowing multiple users to backup to a Time Machine Target but didn’t want them to have to enable encryption with a password they may forget and not be able to recover. At the same time, we didn't want users to be able to restore/browse someone else's backups. The solution we came up was to change the create file mask/umask to give effectively the equivalent of umask 077 or chmod 700 to all newly created files/folders on the share. Samba and ACLs means that attempting things like force create mode or force directory mode have no effect when using FreeNAS. One requirement was that the backups be self-maintaining and non-conflicting of storage allocation. To accomplish this, we set per-client storage quotas in addition to any quotas for the total backup volume. Another feature we wanted was the ability to backup when on a network…

Resetting and Upgrading the APC AP9606 NMC

The APC AP9606 is a very old NMC for the Smart-UPS line. They go for under $10 each on ebay and are great for use on an isolated VLAN for SNMP alerts and actions. Their network interface is only 10BaseT, but that is a non-issue for the purpose they serve and they work without issue on most gigabit switches. General NotesThe default username/password is apc/apc.The AP9606 does not support DHCP, it supports only Static IP addresses or BOOTP.Setting the time on the AP9606 is broken on both the WebUI and on Telnet. If you discover how to successfully set a date and time, I will accept pull requests to this document.Unauthenticated SMTP Mail alerts work with GSuite SMTP Relay, as long as you have whitelisted your WAN IP.Discover/Reset IP AddressConnect to the same layer 2 network as a PC.Use Wireshark and filter for: eth.src[0:3]==00:c0:b7Reset the AP9606 (hold reset button for 2-3 seconds)After about 30 seconds, you will see the AP9606 doing ARP lookups.Put your computer in the same IP ra…

Installing OpenWRT/ROOter on a RBM33G/RBM11G

Image
Installing OpenWRT/ROOter on a RBM33G/RBM11G
Download the latest ROOter for the RBM33GPutty portabletftpd64 portable Extract all of the above to: C:\Users\Public\Downloads Setup Network Interface connected to RBM33G/RMB11G POE port: IP: 192.168.1.2Mask: 255.255.255.0Gateway: 192.168.1.1DNS1: 192.168.1.1
Disable Windows Firewall From an administrator command prompt:NetSh Advfirewall set allprofiles state off
Configure and start tftpd32/64 Option 1: Overwrite tftpd32.ini with this one and start tftpd64.Change the BootFile name if needed. Option 2: Use screenshots for the settings, restart tftpd64 after you make your changes
Open Putty to the COM port of your USB to Serial Adapter with a baud rate of 115200
Plug in/powercycle your router, press any key within 2 seconds to enter setup.
Boot from the network by pressing the following key sequence: o - boot optionse - etherneto - boot optionsb - boot

Sierra Wireless LTE Modem Guide: Automated Flashing of the EM7455/MC7455 with a Ubuntu Linux 18.04 LiveCD

Image
I've written a bash script to automate the entire process of setting up any of the EM/MC74XX series modems (Generic, Dell, Lenovo). This assumes you have the Sierra card inserted into a USB enclosure.

This post is part of my Sierra Wireless LTE Modem Guide Series. If you prefer to skip the blog nature of these guides and just grab the bare features and commands, my GitHub repository will serve as the authoritative source for this entire series. Any changes or updates will occur there first.
From the script description:
- Only for use on Ubuntu 18.04 LTS LiveUSB
- All Needed Packages will Auto-Install
- Sets MBIM Mode with AT Commands Access
- Changes all models of EM74XX/MC74XX Modems to the Generic Sierra Wireless VID/PID
- Clears Band Restrictions and Places Modem in LTE only mode.
- Flashes the Current Generic Firmware as of 2018-07-18

Link to script:
https://github.com/danielewood/sierra-wireless-modems/blob/master/autoflash-7455.sh

If you are feeling brave you can run the scr…

Sierra Wireless LTE Modem Guide: Adapters and Antennas

Image
So you took my advice about which modem to buy and settled on either the EM7455 or the EM7565. Now you need a way to connect that modem to a USB port for use on your desktop or router.



This post is part of my Sierra Wireless LTE Modem Guide Series. If you prefer to skip the blog nature of these guides and just grab the bare features and commands, my GitHub repository will serve as the authoritative source for this entire series. Any changes or updates will occur there first.

My preferred enclosure is the M.2 B-Key to USB 2.0 Adapter With SIM Slot from eBay that costs a mere $22 shipped from China. If you are in a bit of a hurry, order it from LTEFix.com. Jim operates on pretty low overhead, so his prices are very reasonable if you need it next week instead of in three weeks. This enclosure and any EM series modem are all you need to get started. The package includes everything else. On the downside, it is only USB 2.0 and the included USB cable will not work very well if you are far …

Sierra Wireless LTE Modem Guide: Additional References

This section of the guide is more of a dumping ground of miscellaneous links and snippets that I am using as part of an ongoing process of documenting the Sierra Wireless series. It is for my reference, as well as useful to see things I am working on and doing your own research.

Note: This post is part of my Sierra Wireless LTE Modem Guide Series. My GitHub repository will serve as the authoritative source for this entire series and any changes or updates will occur there first.


Must tape over USB3 pins on MC74XX:https://techship.com/faq/sierra-wireless-mc74-series-module-is-not-detected-by-the-operating-system/Sierra Wireless MC7455 | EM7455 -- AT! Command Guidehttps://ltehacks.com/viewtopic.php?t=33Routers Supported by ROOterhttps://www.ofmodemsandmen.com/routers.htmlBPlus USB 3.0 Enclosure for M2 B Key with SIMhttp://www.hwtools.net/Adapter/USB3M2%20Series.html#Web-shop-ROOter development threadhttp://forums.whirlpool.net.au/archive/2689577Zukota on enabling COM portshttps://zukota…

Sierra Wireless LTE Modem Guide: Series Index

Image
The Sierra Wireless LTE Modem series is a very popular choice among those wanting the maximum performance out of their LTE cellular service. The modems are extremely affordable on the second-hand market, cover a wide range of frequencies, and are all factory unlocked. You can buy just about any second-hand Dell branded EM7455, plug it in, and go. Unfortunately there is a bit of a learning curve that goes along with them, but this guide will hopefully serve to make that a short and simple process, rather than a week long process of investigation a researching.

This post is part of my Sierra Wireless LTE Modem Guide Series. If you prefer to skip the blog nature of these guides and just grab the bare features and commands, my GitHub repository will serve as the authoritative source for this entire series. Any changes or updates will occur there first.

In this series, we’ll cover the following topics:
(GitHub links mean that the blog entry is not yet complete)
 - Modem Performance/Specifi…