Confessions of a Computer Janitor

Installing OpenWRT/ROOter on a RBM33G/RBM11G Download the latest ROOter for the RBM33G Putty portable tftpd64 portable Extract all of the above to:  C:\Users\Public\Downloads Setup Network Interface connected to RBM33G/RMB11G POE port: IP: 192.168.1.2 Mask: 255.255.255.0 Gateway: 192.168.1.1 DNS1: 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 options e - ethernet o - boot options b - boot

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 bra

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. M.2 B-Key to USB 2.0 Adapter With SIM Slot 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 an

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 Guide https://ltehacks.com/viewtopic.php?t=33 Routers Supported by ROOter https://www.ofmodemsandmen.com/routers.html BPlus USB 3.0 Enclosure for M2 B Key with SIM http://www.hwtools.net/Adapter/USB3M2%20Series.html#Web-shop- ROOter development thread http://forums.whirlpool.net.au/archive/2689577 Zu

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 Perfo

The Problem Corporate mergers and IP address scheme reallocation can be a major pain point, especially when you have legacy systems that cannot have their network settings modified. One solution is to preserve the legacy network and use a 1:1 NAT to remap the entire network to a new IP space. While this solution resolves IP conflicts, it causes problems when you still need to route traffic to that subnet from systems outside of that network. The responses from the DNS servers on the re-mapped network are responding with the original set of IP addresses and so your traffic will end up going to the wrong destination.  Bad Solutions The most common solution is to maintain a hosts file or setup a stub zone that you manually maintain. The downside of this is that it is a lot of work. The other downside of this is that you now have multiple locations in which to maintain DNS updates and it will break anything that relies on dynamic DNS updates. The end result of this is

Previously we covered installing a valid SSL certificate on a Clustered NetApp . Today we'll make that process a bit more automated. The following script will generate the entire process using only a source Certificate/Key Pair and Intermediate CA cert. This script is tested against Let's Encrypt Production and Staging CAs, you may have to make minor adjustments for it to work with other certificate providers.

Installing a valid SSL certificate on a Clustered NetApp is a relatively straightforward task once you understand the commands. The key takeaway pointers are to already have your certificate and the complete certificate chain available. Quite often you may not have the RootCA certificate and will need to obtain that prior to installing your certificate on the NetApp. How it works: The basics of what commands are needed on the NetApp Cluster are as follows: set -privilege advanced security certificate show Copy $VServer_Name name and $SerialNumber security certificate delete -vserver $VServer_Name -common-name $VServer_Name -ca $VServer_Name -type server -serial $SerialNumber To just remove all SSL certificates for a Vserver: security certificate delete -vserver $VServer_Name  security certificate install -type server Paste contents of F.Q.D.N.cer Paste contents of F.Q.D.N.key Paste contents of CA-Intermediate.cer Paste contents of CA-Root.cer security certific

There are many fine guides online for crossflashing the Dell PERC H200 and H310 to the LSI 9211-8i that they truly are, but sometimes you just want to flash things quickly and in a straightforward manner. This guide aims to achieve that with one word: YOLO. I have made available a flashing package that, using said package, you can have the entire flash process done in under 5 minutes. This guide is based on files and previous guides by  Tyler Woods  and techmattr . There are some caveats: This will not preserve your SAS Address. That said, the only thing you care about is it being unique, so it is automatically generated every time. You can only have a single HBA in your system at a time. It is unsafe and I would highly recommend against running this on any system with a built in LSI HBA. Given the previous point, you should probably run this on a normal consumer motherboard. I used an old Dell Optiplex 755. How it works: The series of batch files perform t