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Example Scripts
120 Chapter 15
User Storage Space
The Digi CM comes with 1 megabyte of user storage space. This storage
space can be used to store custom scripts. The location is /usr2. Custom
scripts such as simple commands, are simply dropped into /usr2. If a file
needs to be edited, copy the file into usr2/rc.usr, kill the process, then restart
the process from the new file. Scripts from the user storage may be created to
run during boot after the network is up. The following are some examples of
various ways to create a script stored in the user storage space.
• Saving IP tables options permanently
• Changing radius socket ports
• Limiting root access to the console on Digi CM products
• Sending a break
Example Scripts
Example Script: Saving IP tables options permanently
Add the following command in the '/usr2/rc.user' script file just above "exit
0". Disabling Telnet is just shown as one example.
1. Create a new script file '/usr2/run.user' which includes the commands you
want.
iptables -A INPUT -p tcp --dport 23 -j DROP
2. Run the following command to make the script executable
chmod 755 /usr2/run.user
3. Add the following command in the '/usr2/rc.user' script, just above "exit 0"
ln -s /usr2/run.user /etc/rc.d/rc2.d/S60runuser
4. Reboot
reboot
Note: If you factory default the unit, the ’/usr2/rc.user’ script file is moved to ’/usr2/
rc.user.old#’ and the default rc.user file will be restored.
Example Script: Changing radius socket ports
The radius client obtains the radius socket ports to use via the
'/etc/services' file. The client only looks up the lines starting with 'radius'
and 'radacct'.
snmpd.conf SNMP information
./.ssh Directory for SSH information
system.cnf Basic network config information (IP, gateway, etc)
timezone Time zone configuration
./.usracctl Directory containing user access control information
version Firmware version
File Name Description
- Digi CM 1
- Contents 5
- 6 Contents 6
- 8 Contents 8
- Introduction 9
- Feature Summary 10
- Chapter 1 10
- Web Interface 11
- Configuration Menu 12
- 14 Chapter 1 14
- Port Escape Menu 18
- CISCO.Router.port3 19
- Sun.nemo.port5 19
- 20 Chapter 1 20
- Getting Started 21
- 22 Chapter 2 22
- The Digi CM 23
- Configuring a Port for SSH 24
- Procedure 25
- About Shell Options 26
- Digi CM 32 show 27
- Chapter 3 31 31
- Adding a Serial Modem 32
- Chapter 3 32
- System and Port Logging 33
- Enable SYSLOG Server 34
- Enable A Compact-flash Card 35
- Enable Digi CM Memory 36
- Viewing System Logs 37
- Chapter 5 39 39
- 5. Click Save & apply 39
- Viewing Port Logs 40
- Configuring Ports 41
- 42 Chapter 4 42
- Serial port parameters 42
- Console Server Mode 44
- Terminal Server Mode 45
- Dial-In Modem Mode 46
- Dial-In Terminal Server 46
- SSH, Raw TCP, and 48
- DTR Behavior 49
- Inter-character Timeout 49
- Serial Port Parameters 50
- Chapter 4 50
- Alerts and Notifications 51
- 56 Chapter 5 56
- Port logging 56
- Port event handling 56
- User Administration 59
- Administering Users 60
- Chapter 6 60
- 4. Click Apply changes 60
- 192.168.1.108 61
- Filter IP: 192.168.1.0 61
- Filter Mask: 255.255.255.0 61
- 192.168.5.10 61
- Chain rule 63
- 64 Chapter 7 64
- Chapter 7 65 65
- • or restrict rights to Jeff 65
- Sniff Session 66
- Permit monitor only mode 67
- Authentication 67
- 68 Chapter 7 68
- Custom and Default Menus 69
- Creating Menu Names 70
- Adding Menu Items 71
- Assigning Users to a Menu 72
- Default Menu 74
- Chapter 8 74
- Microsoft SAC Support 75
- Command Syntax 76
- Command Example 76
- 78 Chapter 9 78
- Chapter 9 79 79
- Field Description 79
- Chapter 9 80
- Host mode configuration 81
- 82 Chapter 10 82
- Assign a port name: 82
- Chapter 10 83 83
- Chapter 10 84
- 86 Chapter 11 86
- 88 Chapter 11 88
- Chapter 11 90
- Add the power controller 93
- 98 Chapter 12 98
- 100 Chapter 12 100
- Power Controller 101
- Chapter 12 101 101
- Chapter 12 102
- Port Clustering 103
- 104 Chapter 13 104
- Chapter 13 105 105
- 106 Chapter 13 106
- Configuring Port Clustering 108
- Chapter 13 108
- 10.Click Save & apply 108
- Clustering Parameters 109
- Accessing the Cluster Ports 109
- 110 Chapter 13 110
- System Administration 111
- 112 Chapter 14 112
- 114 Chapter 14 114
- 116 Chapter 14 116
- Command Line Interface 117
- Chapter 15 119 119
- File Name Description 120
- 122 Chapter 15 122
- 124 Chapter 16 124
- 126 Chapter 16 126
- Configure System Logging 127
- 128 Chapter 16 128
- 130 Chapter 16 130
- Viewing A Sniff Session 131
- 132 Chapter 16 132
- 134 Chapter 16 134
- 136 Chapter 16 136
- 124 for more information 137
- Hardware Test Menu 138
- Disaster Recovery 138
- Use the ESC key 139
- Chapter 16 140
- Hardware Information 141
- Hardware Specifications 142
- Chapter 17 142
- Attribute Value 142
- DB-25 Male Console Adapter 144
- Chapter 17 145 145
- RJ-45 Signal DB-9F Signal 145
- Cable Adapters 146
- RJ-45 Signal DB-25M Signal 146
- Chapter 17 147 147
- (Available but not included) 148
- Rack shown in illustration is 149
- 150 Chapter 17 150
- Certifications 151
- Safety Instructions 152
- Solaris Ready 154
- Chapter 18 154
- Index 155 155
- 156 Index 156
- 157 Index 157
- 90000301 158
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