Logical Solutions SCS-R manual User Access Control, Port Buffers, User Sessions

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SECURE CONSOLE SERVERS

User Access Control

2.4 User Access Control

Access to a Port is controlled on a per-user basis via a user profile, which is stored as a file on the local SCS. This profile is created by the root user using the command ‘adduser’. See Section 8.1.1, adduser, on page 68.

2.4.1 User Sessions

Each SCS supports up to 250 simultaneous user sessions. This is possible since a user can generate multiple sessions. This number of sessions is perceived to be far greater than would be needed in most SCS product applications.

2.5 Port Buffers

The Secure Console Servers provide real-time serial port data buffering. Each Port buffer stores up to 256 KB of data in a buffer, held in RAM in a separate file. This provides hundreds of pages of port data for each attached device, which can be reviewed at a later time. The data may be viewed while users are not interacting with the attached port. Port buffers are enabled by default.

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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 Overview1 SCS160 / SCS320 / SCS480 System Chassis2 SCS160R / SCS320R Serial Devices Connecting to the SCSBreak Safe 3.2 SCS160R / SCS320R AC PowerIP Network 3.1 SCS160 / SCS320 / SCS480Port Buffers User Access ControlUser Sessions For Your Notes Mounting the SCS InstallationRack Mount or Desktop 3 It’s Convection Cooled PowerConnections Front Panel Display and ButtonsConnect your Console Connecting to the Network Port3.1 SCS160R / SCS320R Dual NIC Interface 4.1 SCS160R / SCS320R Dual Console Interface Connect to the PortsPort Adapters 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 ConfigurationRoute via Linux workstation Initial System Security ConcernsInitial Connection via Network Network Connection RequirementsFrom 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 Understanding Linux System AdministrationSCS Systems are Linux-based Linux General Public LicenseConnect using a Terminal Initial Sysadmin AccessSCS System Architecture Log In as root Enter CommandsLog Out Configure the Services Default ServicesConfigure the Services For Your Notes System Commands CommandsReboot Save CommandOther Linux Commands PoweroffStty SftpSsh Ssh-keygenVersions Change Logging LevelFor Your Notes Change Network Address SecurityRun netconfig More Than One Nameserver Example of netconfig fill-in fieldsChange Hostname Time ConfigurationChange NIC Speed Front Panel Display Options Configure AuthenticationsEdit Display Mode ParametersView Display OFF Network Time ServiceLINE1 LINE2Start the NTP Service Configure NTPNIS and User Port Permissions Changing Serial Port settingsUser Port Control Where NIS Port AccessNIS Database file User Names and GroupsGroup Permissions Remote NFS Directory NIS Configuration File10 NFS NIS Make fileSyslog SnmpStart Snmp Timeouts User Setup Administering UsersDeluser Other Editing CommandsAdduser EdituserEditesc name Editbrk nameFor Your Notes Root user User OperationsUser Accounts SCS UsersWhat Can a User Do Port IdentitiesEscape Sequence Break SequenceEditbrk Edit Escape Sequence Product Serial Number Regulatory & SafetySafety Requirements Symbols found on the ProductDeclaration of Conformity Regulatory ComplianceNorth America European UnionSupplementary Information Standards With Which the Products ComplyAustralia & New Zealand Lithium Battery10.7 SCS160R / SCS320R Power Modules For Your Notes Customer Support How to Contact LogicalWebsite Telephone Mail11.1.4 Fax Our Address WarrantyReturn Authorization Product SupportFor 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