Lantronix SLB Lantronix SLB - User Guide - Page 107

8: Device Ports

SLB - Branch Office Manager User Guide

107

tcp <IP Address> port <TCP Port>

telnet <IP Address> [port <TCP Port>]

udp <IP Address> port <UDP Port>

hostlist <Host List>

Note:

To escape from the

connect direct

command when the endpoint of the

command is

deviceport

,

tcp

, or

udp

and return to the command line interface, type the

escape sequence assigned to the currently logged in user. If the endpoint is

telnet

or

SSH

, logging out returns the user to the command line prompt.

Note:

To escape from the

connect listen

command, press any key.

Setting up a user with an escape sequence is optional. For any NIS, LDAP, RADIUS,

Kerberos, or TACACS+ user, or any local user who does not have an escape sequence

defined, the default escape sequence is Esc+A.

Device Ports - Logging

The SLB products support port buffering of the data on the system's device ports as well as

notification of receiving data on a device port. Port logging is disabled by default. You can enable

more than one type of logging (local, NFS file, email/SNMP, or USB port) at a time. The buffer

containing device port data is cleared when any type of logging is enabled.

Local Logging

If local logging is enabled, each device port stores 256 Kbytes (approximately 400 screens) of I/O

data in a true FIFO buffer. You may view this data (in ASCII format) at the CLI with the

show

locallog

command or on the

Devices > Device Ports - Logging

page. Buffered data is normally

stored in RAM and is lost in the event of a power failure if it is not logged using an NFS mount

solution. If the buffer data overflows the buffer capacity, only the oldest data is lost, and only in the

amount of overrun (not in large blocks of memory).

NFS File Logging

Data can be logged to a file on a remote NFS server. Data logged locally to the SLB is limited to

256 Kbytes and may be lost in the event of a power loss. Data logged to a file on an NFS server

does not have these limitations. The system administrator can define the directory for saving

logged data on a port-by-port basis and configure file size and number of files per port.

The directory path must be the local directory for one of the NFS mounts. For each logging file,

once the file size reaches the maximum, a new file opens for logging. Once the number of files

reaches the maximum, the oldest file is overwritten. The file naming convention is: <Device Port

Number>_<Device Port Name>_<File number>.log.

Examples:

02_Port-2_1.log

02_Port-2_2.log

02_Port-2_3.log

02_Port-2_4.log

02_Port-2_5.log

Section	Page
SLB - Branch Office Manager User Guide	1
Copyright & Trademark	2
Open Source Software	2
Contacts	2
Disclaimer & Revisions	2
Revision History	3
Table of Contents	4
List of Figures	13
List of Tables	16
1: About this Guide	17
Purpose and Audience	17
Summary of Chapters	17
Additional Documentation	18
2: Introduction	19
Features	19
Models	22
System Features	23
Application Example	24
Hardware Features	25
3: Installation	29
What's in the Box	29
Technical Specifications	30
Physical Installation	31
Typical Installations	35
4: Quick Setup	36
Recommendations	36
IP Address	36
Method #1 Using the Front Panel Display	37
Method #2 Quick Setup on the Web Page	40
Method #3 Quick Setup on the Command Line Interface	42
Next Step	45
5: Web and Command Line Interfaces	46
Web Interface	46
Command Line Interface	48
6: Basic Parameters	52
Requirements	52
IP Filter	58
IP Filter Commands	62
Routing	63
VPN	65
7: Services	68
System Logging and Other Services	68
SSH/Telnet/Logging	68
SNMP	72
NFS and SMB/CIFS	75
Secure Lantronix Network	77
Date and Time	82
Web Server	84
iGoogle Gadgets	88
8: Device Ports	90
Connection Methods	90
Permissions	90
Device Status	91
Global Port Settings	91
Device Ports - Settings	94
Interacting with a Device Port	106
Device Ports - Logging	107
Console Port	112
Power Outlets	114
Host Lists	117
Scripts	121
Sites	134
Modem Dialing States	137
9: USB Port	141
Set Up of USB Storage	141
Manage Firmware and Configuration Files	148
USB Commands	148
10: Connections	150
Typical Setup Scenarios for the SLB	150
11: User Authentication	157
Local and Remote User Settings	160
NIS	168
LDAP	171
RADIUS	176
Kerberos	182
TACACS+	186
Groups	190
SSH Keys	193
Custom Menus	199
12: Maintenance	206
SLB Maintenance	206
Audit Log	219
Email Log	220
Diagnostics	221
Status/Reports	225
Emailing Logs and Reports	227
Events	230
LCD/Keypad	232
Banners	234
13: Application Examples	236
Dial-in (Text Mode) to a Remote Device	238
Local Serial Connection to Network Device via Telnet	239
14: Command Reference	241
Introduction to Commands	241
Administrative Commands	243
Audit Log Commands	251
Authentication Commands	251
Kerberos Commands	252
LDAP Commands	253
Local Users Commands	254
NIS Commands	257
RADIUS Commands	258
TACACS+ Commands	259
User Permissions Commands	260
CLI Commands	262
Connection Commands	264
Custom User Menu Commands	267
Date and Time Commands	269
Device Commands	270
Device Port Commands	271
Diagnostic Commands	274
End Device Commands	276
Events Commands	277
Group Commands	278
Host List Commands	279
IP Filter Commands	280
Logging Commands	281
Network Commands	282
NFS and SMB/CIFS Commands	285
Power Commands	286
Routing Commands	287
Services Commands	288
SLB Network Commands	289
SSH Key Commands	290
Status Commands	292
System Log Commands	294
USB Storage Commands	294
USB Modem Commands	295
Appendix A: Bootloader	297
Accessing the Bootloader	297
Bootload Commands	297
Appendix B: Security Considerations	298
Security Practice	298
Factors Affecting Security	298
Appendix C: Safety Information	299
Safety Precautions	299
Appendix D: Adapters and Pinouts	301
Appendix E: Protocol Glossary	304

Lantronix SLB Lantronix SLB - User Guide - Page 107

Device Ports - Logging, Local Logging, NFS File Logging

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