Moxa UC-8410A-LX [3/86] Bcryptographic hash functions
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Moxa UC-8410A-LX [3/86] Bcryptographic hash functions

Moxa UC-8410A-LX [3/86] Bcryptographic hash functions
Table of Contents
1. Introduction ...................................................................................................................................... 1-1
2. Getting Started ................................................................................................................................. 2-1
Software Architecture .......................................................................................................................... 2-2
Software Packages .............................................................................................................................. 2-2
Connecting to the UC-8410A-LX ........................................................................................................... 2-2
Connecting through the Serial Console ........................................................................................... 2-3
SSH Console ............................................................................................................................... 2-5
User Account Management ................................................................................................................... 2-7
Switching to the Root Account ...................................................................................................... 2-7
Creating and Deleting User Accounts ..................................................................................................... 2-7
Disabling the Default User Account ....................................................................................................... 2-7
Network Settings ................................................................................................................................ 2-8
Configuring Ethernet Interfaces ..................................................................................................... 2-8
Connecting to a Cellular Network ................................................................................................... 2-9
System Administration ........................................................................................................................ 2-9
Querying the Firmware Version ..................................................................................................... 2-9
Adjusting the Time ...................................................................................................................... 2-9
Setting the Time Zone ............................................................................................................... 2-10
Determining Available Drive Space ..................................................................................................... 2-11
Enabling and Disabling Daemons ........................................................................................................ 2-12
Package Management ....................................................................................................................... 2-13
Reboot/Shutdown of the UC-8410A-LX ................................................................................................ 2-14
3. Advanced Configuration of Peripherals ............................................................................................. 3-1
Serial Ports ........................................................................................................................................ 3-2
stty ........................................................................................................................................... 3-2
USB Port............................................................................................................................................ 3-3
Disabling the USB Port ................................................................................................................. 3-3
USB Automount .......................................................................................................................... 3-4
SD Slot.............................................................................................................................................. 3-4
Enabling Write Protection ............................................................................................................. 3-5
Preparing a Bootable SD Card .............................................................................................................. 3-5
Creating a Linux System Image Using a Windows Platform ............................................................... 3-6
Creating a System Image in a Linux Environment ............................................................................ 3-8
Booting up the UC-8410A-LX for the First Time ...................................................................................... 3-8
File System Resizing .................................................................................................................... 3-8
Push Button and LED indicators ............................................................................................................ 3-9
Diagnosing Device and Subsystem Failures ................................................................................... 3-10
Restoring the Firmware to Factory Default Settings ............................................................................... 3-11
Using Cellular Modules ...................................................................................................................... 3-11
Cellular Signal Strength ............................................................................................................. 3-11
Cellular Dial-Up Mode ................................................................................................................ 3-11
Cellular GPS Port ....................................................................................................................... 3-11
Dial-Up Connections .................................................................................................................. 3-12
Disconnecting from a Dial-Up Network ......................................................................................... 3-12
GPS ......................................................................................................................................... 3-12
Generic .................................................................................................................................... 3-12
Configuring the Wireless LAN ............................................................................................................. 3-13
Configuring WPA2 Settings ......................................................................................................... 3-13
Connecting to an AP Using WEP Authentication ............................................................................. 3-14
Connecting to an AP Using WPA/WPA2 PSK Authentication ............................................................. 3-14
Using wpa_cli ........................................................................................................................... 3-15
4. Securing the UC-8410A-LX ................................................................................................................ 4-1
Secure Boot ....................................................................................................................................... 4-2
Sudo Mechanism ................................................................................................................................ 4-3
5. Using the General Debian Package .................................................................................................... 5-1
NTP Client .......................................................................................................................................... 5-2
Execute Scheduled Commands with cron ............................................................................................... 5-2
Updating System Time and RTC .................................................................................................... 5-2
Rocket-Fast System for Log Processing: rsyslog ..................................................................................... 5-3
Rsyslog’s Configuration File .......................................................................................................... 5-3
Syntax of the Selector ................................................................................................................. 5-4
OpenSSL ........................................................................................................................................... 5-4
Ciphers ...................................................................................................................................... 5-5
Cryptographic Hash Functions ....................................................................................................... 5-5
Public-key cryptography ............................................................................................................... 5-5
The Apache Web Server ...................................................................................................................... 5-5
Edit ServerName in Apache Configuration File ................................................................................. 5-6

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