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MPC-2000-LX Series Linux User's Manual

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MPC-2000-LX Series Linux User's Manual MPC-2000-LX Series Linux User’s Manual Version 1.0, May 2019 www.moxa.com/product © 2019 Moxa Inc. All rights reserved. MPC-2000-LX Series Linux User’s Manual The software described in this manual is furnished under a license agreement and may be used only in accordance with the terms of that agreement. Copyright Notice © 2019 Moxa Inc. All rights reserved. Trademarks The MOXA logo is a registered trademark of Moxa Inc. All other trademarks or registered marks in this manual belong to their respective manufacturers. Disclaimer Information in this document is subject to change without notice and does not represent a commitment on the part of Moxa. Moxa provides this document as is, without warranty of any kind, either expressed or implied, including, but not limited to, its particular purpose. Moxa reserves the right to make improvements and/or changes to this manual, or to the products and/or the programs described in this manual, at any time. Information provided in this manual is intended to be accurate and reliable. However, Moxa assumes no responsibility for its use, or for any infringements on the rights of third parties that may result from its use. This product might include unintentional technical or typographical errors. Changes are periodically made to the information herein to correct such errors, and these changes are incorporated into new editions of the publication. Technical Support Contact Information www.moxa.com/support Moxa Americas Moxa China (Shanghai office) Toll-free: 1-888-669-2872 Toll-free: 800-820-5036 Tel: +1-714-528-6777 Tel: +86-21-5258-9955 Fax: +1-714-528-6778 Fax: +86-21-5258-5505 Moxa Europe Moxa Asia-Pacific Tel: +49-89-3 70 03 99-0 Tel: +886-2-8919-1230 Fax: +49-89-3 70 03 99-99 Fax: +886-2-8919-1231 Moxa India Tel: +91-80-4172-9088 Fax: +91-80-4132-1045 Table of Contents 1. Introduction ...................................................................................................................................... 1-1 Overview ........................................................................................................................................... 1-2 Software Specifications........................................................................................................................ 1-2 Software Components .................................................................................................................. 1-2 2. System Configuration ........................................................................................................................ 2-1 Getting Started .................................................................................................................................. 2-2 Connecting from an SSH Console .......................................................................................................... 2-4 Windows Users ........................................................................................................................... 2-5 Linux Users ................................................................................................................................ 2-5 Adjusting the System Time .................................................................................................................. 2-6 Setting the Time Manually ............................................................................................................ 2-6 systemd-timesyncd Service .......................................................................................................... 2-7 NTP Client .................................................................................................................................. 2-8 Manage the Service by systemd script ........................................................................................... 2-9 Setting Timezone ...................................................................................................................... 2-10 Cron—Daemon for Executing Scheduled Commands .............................................................................. 2-13 The Partition in the System ................................................................................................................ 2-14 Adding Swap Space in the System ...................................................................................................... 2-14 Resizing and Adding a Partition .......................................................................................................... 2-15 Inserting a USB Storage into the Computer .......................................................................................... 2-21 Inserting a SD Storage into the Computer ........................................................................................... 2-22 Checking the Linux Version ................................................................................................................ 2-23 Checking Moxa’s Control Version ........................................................................................................ 2-24 APT—Installing and Removing Packages .............................................................................................. 2-24 Audio Player ..................................................................................................................................... 2-25 Video Player ..................................................................................................................................... 2-28 Web Browser .................................................................................................................................... 2-28 Brightness control ............................................................................................................................. 2-28 Introduction.............................................................................................................................. 2-28 Auto-brightness control mode ..................................................................................................... 2-30 Manual brightness control mode .................................................................................................. 2-32 3. Managing Communications ............................................................................................................... 3-1 Changing the Network Settings ............................................................................................................ 3-2 Changing the “interfaces” Configuration File ................................................................................... 3-2 Configure the VLAN tag in “interfaces” ........................................................................................... 3-3 Adjusting IP Addresses with “ifconfig” ............................................................................................ 3-3 DNS Client ......................................................................................................................................... 3-4 /etc/hostname ............................................................................................................................ 3-4 /etc/resolv.conf ........................................................................................................................... 3-4 /etc/nsswitch.conf ....................................................................................................................... 3-5 Apache Web Server ............................................................................................................................. 3-5 IPTABLES .......................................................................................................................................... 3-8 IPTABLES Hierarchy ..................................................................................................................... 3-9 IPTABLES Modules ....................................................................................................................... 3-9 Observe and Erase Chain Rules ................................................................................................... 3-10 Define Policy for Chain Rules....................................................................................................... 3-11 Append or Delete Rules .............................................................................................................. 3-11 NAT (Network Address Translation) ..................................................................................................... 3-12 NAT Example ............................................................................................................................ 3-13 Enabling NAT at Bootup ............................................................................................................. 3-13 NFS (Network File System) Client ....................................................................................................... 3-14 Wireless Management ....................................................................................................................... 3-14 Device Driver for WPEA-172GN – rt5572sta.ko ............................................................................. 3-15 Device Driver for WPEA-172GN - rt2800usb.ko ............................................................................. 3-16 iw ...........................................................................................................................................
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