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Moxa V2401-CE [3/108] Table of contents
Table of Contents
Chapter 1
Introduction ..................................................................................................1-1
Overview.................................................................................................................................. 1-2
Software Specifications ........................................................................................................... 1-2
Software Components.............................................................................................................. 1-3
Chapter 2 Software Configuration ...............................................................................2-1
Starting from a VGA Console.................................................................................................. 2-2
Desktop Display Configuration ............................................................................................... 2-3
Connecting from a Telnet Console........................................................................................... 2-7
Connecting from an SSH Console ........................................................................................... 2-8
Windows Users............................................................................................................. 2-8
Linux Users .................................................................................................................. 2-9
Adjusting the System Time...................................................................................................... 2-9
Setting the Time Manually ........................................................................................... 2-9
NTP Client.................................................................................................................. 2-10
Updating the Time Automatically .............................................................................. 2-10
Enabling and Disabling Daemons...........................................................................................2-11
Setting the Run-Level............................................................................................................ 2-15
Cron—Daemon for Executing Scheduled Commands........................................................... 2-16
Inserting a USB Storage Device into the Computer............................................................... 2-17
Checking the Linux Version................................................................................................... 2-18
APT—Installing and Removing Packages............................................................................. 2-18
Device Suspend...................................................................................................................... 2-20
Chapter 3 Managing Communications ........................................................................3-1
Changing the Network Settings ............................................................................................... 3-3
Changing the “interfaces” Configuration File .............................................................. 3-3
Adjusting IP Addresses with “ifconfig” ....................................................................... 3-4
Serial Port Operation Mode ..................................................................................................... 3-4
Telnet/FTP Server .................................................................................................................... 3-5
DNS Client............................................................................................................................... 3-6
Apache Web Server.................................................................................................................. 3-8
Default Homepage........................................................................................................ 3-8
Disabling the CGI Function.......................................................................................... 3-8
Saving Web Pages to a USB Storage Device ............................................................... 3-9
IPTABLES..............................................................................................................................3-11
IPTABLES Hierarchy................................................................................................. 3-13
IPTABLES Modules................................................................................................... 3-14
Observe and Erase Chain Rules.................................................................................. 3-15
Define Policy for Chain Rules.................................................................................... 3-15
Append or Delete Rules.............................................................................................. 3-16
NAT (Network Address Translation) ..................................................................................... 3-17
NAT Example............................................................................................................. 3-17
Enabling NAT at Bootup............................................................................................ 3-18
PPP (Point to Point Protocol)................................................................................................. 3-19
Connecting to a PPP Server over a Simple Dial-up Connection ................................ 3-19
Connecting to a PPP Server over a Hard-wired Link ................................................. 3-20
Содержание
- First edition march 2010 1
- V2401 2402 series linux user s manual 1
- Www moxa com product 1
- Copyright notice 2
- Disclaimer 2
- Technical support contact information 2
- Trademarks 2
- V2401 2402 series linux user s manual 2
- Www moxa com support 2
- Table of contents 3
- Introduction 5
- Device driver 6
- Hardware 6
- Linux kernel 6
- Micro kernel 6
- Overview 6
- Protocol stack 6
- Software specifications 6
- Software components 7
- Software configuration 8
- Starting from a vga console 9
- Desktop display configuration 10
- Connecting from a telnet console 14
- Connecting from an ssh console 15
- Windows users 15
- Adjusting the system time 16
- Linux users 16
- Setting the time manually 16
- Example shell script for updating the system time periodically 17
- Ntp client 17
- Updating the time automatically 17
- Enabling and disabling daemons 18
- How to run the shell script automatically when the kernel boots up 18
- Setting the run level 22
- Cron daemon for executing scheduled commands 23
- Inserting a usb storage device into the computer 24
- Apt installing and removing packages 25
- Checking the linux version 25
- Device suspend 27
- Managing communications 28
- Changing the interfaces configuration file 30
- Changing the network settings 30
- Static ip address 30
- Adjusting ip addresses with ifconfig 31
- Dynamic ip address using dhcp 31
- Serial port operation mode 31
- Disabling the telnet ftp server 32
- Enabling the telnet ftp server 32
- Telnet ftp server 32
- Dns client 33
- Etc hostname 33
- Etc nsswitch conf 34
- Etc resolv conf 34
- Apache web server 35
- Default homepage 35
- Disabling the cgi function 35
- Saving web pages to a usb storage device 36
- Filter table includes three chains 38
- Iptables 38
- Nat table includes three chains 38
- Process 38
- Mangle table includes two chains 39
- Sub tables 39
- 13 3 13 40
- Iptables hierarchy 40
- The following figure shows the iptables hierarchy 40
- V2401 2402 series linux user s manual managing communications 40
- Iptables modules 41
- Define policy for chain rules 42
- Observe and erase chain rules 42
- Append or delete rules 43
- Nat example 44
- Nat network address translation 44
- Enabling nat at bootup 45
- Connecting to a ppp server over a simple dial up connection 46
- Ppp point to point protocol 46
- Checking the connection 47
- Connecting to a ppp server over a hard wired link 47
- Setting up a machine for incoming ppp connections 49
- Nfs network file system client 54
- Snmp simple network management protocol 55
- Ethernet bridging for private networks on different subnets 56
- Openvpn 56
- Ethernet bridging for private networks on the same subnet 61
- Routed ip 62
- Programmer guide 64
- Device api 65
- Rtc real time clock 65
- Example to get the baudrate 66
- Example to set the baudrate 66
- Baudrate inaccuracy 67
- Digital i o 67
- Special note 67
- Dio program source code file example 69
- Examples 69
- Special note 69
- System recovery 74
- Recovery environment 75
- Recovery procedure 75
- In this example m is the usb disk drive number 76
- A software component list 84
- Software component list 84
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