System Administration, Understanding Linux | Logical Solutions SCS

SECURE CONSOLE SERVERS

SCS Systems are Linux-based

5 System Administration

5.1 SCS Systems are Linux-based

The Logical Solutions Secure Console Server products use the GNU/Linux oper- ating system.

5.1.1 Linux General Public License

The GNU/Linux source code used in this product has been distributed under a General Public License (GPL) from the Free Software Foundation. You may read about the GNU GPL by reviewing the text version of the GPL, which can be found at http://www.gnu.org/licenses/gpl.txt.

You will find additional GNU license information online

at http://www.gnu.org/licenses/licenses.html#GPL.

Please contact Logical Solutions Product Support, should you need to obtain a copy of this source code.

5.1.2 Understanding Linux

Each SCS system is a “Linux box”, meaning you will use Linux commands to administer it. We must assume a certain level of Linux understanding for our audience. If you do not know your way around Linux, you may have some difficulties and might want to get some Linux help. This document is not meant to teach you all about Linux or the other applications and features available since this system is running Linux. Those that use this type of system and know Linux should have no trouble configuring the SCS.

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Product Manual - MAN-000001C

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Logical Solutions System Administration, SCS Systems are Linux-based, Linux General Public License, Understanding Linux

Contents

SCS and SCS-R Models Product Manual Copyright Notice Product Overview Initial Configuration Commands Administering Users Regulatory & Safety File System SCS Models Covered in this Manual Introduction Introduction System Features Hardware Features Software Features SCS480, 48-Port Secure Console Server, front and rear views 1 SCS160R / SCS320R Hardware TCP/IP Technical Specifications SCS320R, showing front and rear views Intended Application Product Overview 2 SCS160R / SCS320R System Chassis1 SCS160 / SCS320 / SCS480 Break Safe Connecting to the SCSSerial Devices IP Network AC Power3.1 SCS160 / SCS320 / SCS480 3.2 SCS160R / SCS320R User Sessions User Access ControlPort Buffers For Your Notes Rack Mount or Desktop InstallationMounting the SCS Connections PowerFront Panel Display and Buttons 3 It’s Convection Cooled 3.1 SCS160R / SCS320R Dual NIC Interface Connecting to the Network PortConnect your Console Port Adapters Connect to the Ports4.1 SCS160R / SCS320R Dual Console Interface Pin Serial Port Pinout Left Supply Failed Tue Mar 18 154307 SCS160R / SCS320R Power Modules AC Power Module Replacement Secure Console Servers SCS160R / SCS320R Power Modules Replacing an AC Module Left Module shown partially removed Default Configuration Initial Configuration Initial Connection via Network Initial System Security ConcernsNetwork Connection Requirements Route via Linux workstation From a DOS prompt, enter Route via Windows workstation PuTTY Configuration Screen Front Panel Edit Mode Front Panel Network Setup SCS Front Panel Display, showing first Edit Mode display Start Front Panel Edit Mode Network IP Address Program Network Net Mask Edit IP Address 192.168.075.239 Gateway Edit Net Mask 255.200.000.000 Exit to Main Menu Edit Gateway Exit to Main Menu For Your Notes SCS Systems are Linux-based System AdministrationLinux General Public License Understanding Linux SCS System Architecture Initial Sysadmin AccessConnect using a Terminal Log Out Enter CommandsLog In as root Configure the Services Default Services Configure the Services For Your Notes System Commands Commands Reboot Save Command Other Linux Commands Poweroff Ssh SftpSsh-keygen Stty Versions Change Logging Level For Your Notes Change Network Address Security Run netconfig More Than One Nameserver Example of netconfig fill-in fields Change NIC Speed Time ConfigurationChange Hostname Front Panel Display Options Configure Authentications View Display Mode ParametersEdit LINE1 Network Time ServiceLINE2 Display OFF Start the NTP Service Configure NTP User Port Control Changing Serial Port settingsNIS and User Port Permissions Where NIS Port Access Group Permissions User Names and GroupsNIS Database file 10 NFS NIS Configuration FileNIS Make file Remote NFS Directory Start Snmp SnmpSyslog Timeouts User Setup Administering Users Adduser Other Editing CommandsEdituser Deluser Editesc name Editbrk name For Your Notes User Accounts User OperationsSCS Users Root user What Can a User Do Port Identities Editbrk Break SequenceEscape Sequence Edit Escape Sequence Safety Requirements Regulatory & SafetySymbols found on the Product Product Serial Number North America Regulatory ComplianceEuropean Union Declaration of Conformity Supplementary Information Standards With Which the Products Comply Australia & New Zealand Lithium Battery 10.7 SCS160R / SCS320R Power Modules For Your Notes Website How to Contact LogicalCustomer Support 11.1.4 Fax MailTelephone Return Authorization WarrantyProduct Support Our Address For Your Notes Read-Only vs. Read-Write Appendix a File System LSI Directories How do I do this? Appendix B FAQ View a Buffer Product Support For Your Notes