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

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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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Contents SCS and SCS-R Models Product ManualCopyright Notice Product Overview Initial Configuration Commands Administering Users Regulatory & Safety File System SCS Models Covered in this Manual IntroductionIntroduction System FeaturesHardware Features Software FeaturesSCS480, 48-Port Secure Console Server, front and rear views 1 SCS160R / SCS320R HardwareTCP/IP Technical SpecificationsSCS320R, showing front and rear views Intended Application Product Overview2 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 / SCS320RUser 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 Cooled3.1 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 PinoutLeft Supply Failed Tue Mar 18 154307 SCS160R / SCS320R Power ModulesAC Power Module Replacement Secure Console Servers SCS160R / SCS320R Power ModulesReplacing an AC Module Left Module shown partially removed Default Configuration Initial ConfigurationInitial Connection via Network Initial System Security ConcernsNetwork Connection Requirements Route via Linux workstationFrom a DOS prompt, enter Route via Windows workstationPuTTY Configuration Screen Front Panel Edit Mode Front Panel Network SetupSCS Front Panel Display, showing first Edit Mode display Start Front Panel Edit ModeNetwork IP Address Program NetworkNet Mask Edit IP Address 192.168.075.239Gateway Edit Net Mask 255.200.000.000Exit to Main Menu Edit GatewayExit to Main Menu For Your Notes SCS Systems are Linux-based System AdministrationLinux General Public License Understanding LinuxSCS System Architecture Initial Sysadmin AccessConnect using a Terminal Log Out Enter CommandsLog In as root Configure the Services Default ServicesConfigure the Services For Your Notes System Commands CommandsReboot Save CommandOther Linux Commands PoweroffSsh SftpSsh-keygen SttyVersions Change Logging LevelFor Your Notes Change Network Address SecurityRun netconfig More Than One Nameserver Example of netconfig fill-in fieldsChange NIC Speed Time ConfigurationChange Hostname Front Panel Display Options Configure AuthenticationsView Display Mode ParametersEdit LINE1 Network Time ServiceLINE2 Display OFFStart the NTP Service Configure NTPUser Port Control Changing Serial Port settingsNIS and User Port Permissions Where NIS Port AccessGroup Permissions User Names and GroupsNIS Database file 10 NFS NIS Configuration FileNIS Make file Remote NFS DirectoryStart Snmp SnmpSyslog Timeouts User Setup Administering UsersAdduser Other Editing CommandsEdituser DeluserEditesc name Editbrk nameFor Your Notes User Accounts User OperationsSCS Users Root userWhat Can a User Do Port IdentitiesEditbrk Break SequenceEscape Sequence Edit Escape Sequence Safety Requirements Regulatory & SafetySymbols found on the Product Product Serial NumberNorth America Regulatory ComplianceEuropean Union Declaration of ConformitySupplementary Information Standards With Which the Products ComplyAustralia & New Zealand Lithium Battery10.7 SCS160R / SCS320R Power Modules For Your Notes Website How to Contact LogicalCustomer Support 11.1.4 Fax MailTelephone Return Authorization WarrantyProduct Support Our AddressFor Your Notes Read-Only vs. Read-Write Appendix a File SystemLSI Directories How do I do this? Appendix B FAQView a Buffer Product Support For Your Notes