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Index: U

• -u option (exportfs command): The exportfs command (TCP/IP Network Administration)
• --uninstall option (rpm): Using the Red Hat Package Manager (TCP/IP Network Administration)
• U flag (Linux routing table): The Routing Table (TCP/IP Network Administration)
• UCD-SNMP project (see Net-SNMP)
• UCD SNMP tools: SNMP-Based Management Tools (Network Troubleshooting Tools)
• • Network-Monitoring Tools (Network Troubleshooting Tools)
  • Sources for Tools (Network Troubleshooting Tools)
  • Sources for Tools (Network Troubleshooting Tools)
• UCE (Unsolicited Commercial Email): Junk mail (Building Internet Firewalls)
• udp option (fstab file): The vfstab and fstab files (TCP/IP Network Administration)
• UDP response packets: Common Syslog Messages (DNS and Bind)
• • Registering Name Servers (DNS and Bind)
  • Option Settings (DNS and Bind)
  • disabled checksums and: Name Server Startup Fails Because UDP Checksums Disabled (DNS and Bind)
  • overflowing: Unspecified Error (DNS and Bind)
• UDP (Unreliable Datagram Protocol)
• • bandwidth: iperf (Network Troubleshooting Tools)
  • filtering packets: Protocol and port filtering. (Network Troubleshooting Tools)
  • hping tool: hping (Network Troubleshooting Tools)
  • load generation: spray (Network Troubleshooting Tools)
  • MGEN tool: MGEN (Network Troubleshooting Tools)
  • nemesis tool: nemesis (Network Troubleshooting Tools)
  • NTP usage of: NTP (Network Troubleshooting Tools)
  • syslog use of: Remote logging (Network Troubleshooting Tools)
  • throughput: ttcp (Network Troubleshooting Tools)
  • traceroute tool: Path Discovery with traceroute (Network Troubleshooting Tools)
• UDP (User Datagram Protocol): UDP (Building Internet Firewalls)
• • Transport layer (Managing NFS and NIS)
  • TCP and UDP (Managing NFS and NIS)
  • Local Forwarding (SSH, The Secure Shell)
  • Data Communications Model (TCP/IP Network Administration)
  • RPC and: Remote Procedure Call (RPC) (Building Internet Firewalls)
  • delivery: TCP and UDP (Managing NFS and NIS)
  • limiting traffic: SNMP Communities (Essential SNMP)
  • low overhead: SNMP and UDP (Essential SNMP)
  • and NIS: Integrating NIS maps with local files (Managing NFS and NIS)
  • Packet Relayer: UDP Packet Relayer (Building Internet Firewalls)
  • PC/NFS and: PC/NFS today (Managing NFS and NIS)
  • ports 161 and 162: SNMP and UDP (Essential SNMP)
  • in protocol stack: SNMP and UDP (Essential SNMP)
  • RARP and: Reverse ARP requests (Managing NFS and NIS)
  • and RPC: The client-server model (Managing NFS and NIS)
  • SNMP and: SNMP and UDP (Essential SNMP)
  • specifying for commands: Common Command-Line Arguments (Essential SNMP)
  • throughput, bottlenecks and: NFS/TCP versus NFS/UDP (Managing NFS and NIS)
  • Transport Layer: User Datagram Protocol (TCP/IP Network Administration)
  • traps and unreliability of: SNMP and UDP (Essential SNMP)
  • • SNMP Traps (Essential SNMP)
    • Understanding Traps (Essential SNMP)
    • Disk-Space Checker (Essential SNMP)
• uid field (inet.conf file): The Internet Daemon (TCP/IP Network Administration)
• UID (user ID)
• • assigning to subprocesses of SSH server: As-User Access (userfile) (SSH, The Secure Shell)
  • changing while logged in: Unknown password entries (Managing NFS and NIS)
  • DBM database and: Map files (Managing NFS and NIS)
  • exports file: The /etc/exports file (TCP/IP Network Administration)
  • mapping users to: The /etc/exports file (TCP/IP Network Administration)
  • share command: The share command (TCP/IP Network Administration)
• Umask: Permissions for newly created files (SSH, The Secure Shell)
• • octal values: Permissions for newly created files (SSH, The Secure Shell)
  • recommended setting: /etc/sshd_config (SSH, The Secure Shell)
• UMASK parameter, nfslogd daemon: Other configuration parameters (Managing NFS and NIS)
• umount( ) system call, automounter: The Automounter (Managing NFS and NIS)
• unauthorized changes to systems: Need for Troubleshooting Tools (Network Troubleshooting Tools)
• UNAVAIL condition: Sun's Solaris 2.x (DNS and Bind)
• uncompressing domain names: The Name Server Library Routines (DNS and Bind)
• uncompressing software tools: Generic Installs (Network Troubleshooting Tools)
• undefine macro (sendmail): sendmail Macros (TCP/IP Network Administration)
• underscore (_) not permitted in host names: Host Name Checking (BIND 4.9.4 and Later Versions) (DNS and Bind)
• undocumented features: Disclaimers (SSH, The Secure Shell)
• unenforced locking: Mandatory versus advisory locking (Managing NFS and NIS)
• unformatted timestamps: Controlling how information is displayed (Network Troubleshooting Tools)
• • sanitize (Network Troubleshooting Tools)
• unicast addresses: Broadcast addresses (Managing NFS and NIS)
• • The IP Address (TCP/IP Network Administration)
• unicast multicast parameter (gated): The isis Statement (TCP/IP Network Administration)
• unicast packets: Web mode (Network Troubleshooting Tools)
• unicasting: Multicast and the Multicast Backbone (MBONE) (Building Internet Firewalls)
• Unicenter TNG Framework: NMS Suites (Essential SNMP)
• uninterruptible power supplies (UPSs): In the End (Essential SNMP)
• • APC Symetra (Essential SNMP)
• uninterruptible power system (UPS): Recommendations (DNS and Bind)
• universal participation: Universal Participation (Building Internet Firewalls)
• • Universal participation (Building Internet Firewalls)
  • Universal participation (Building Internet Firewalls)
• University at Buffalo Network Management Server: Getting More Information (Essential SNMP)
• • Network-Management Software (Essential SNMP)
• Unix: Platforms (Building Internet Firewalls)
• • Concord SystemEDGE Agent for Unix and NT (Essential SNMP)
  • agents: SNMP Agents (Essential SNMP)
  • bastion host: What Operating System? (Building Internet Firewalls)
  • • Unix and Linux Bastion Hosts (Building Internet Firewalls)
  • BSD
  • • configuration file: The BSD Kernel Configuration File (TCP/IP Network Administration)
    • devices statement: The device statement (TCP/IP Network Administration)
    • options statement: The options statement (TCP/IP Network Administration)
    • pseudo-device statement: The pseudo-device statement (TCP/IP Network Administration)
    • versions of: Brief History of the Internet (DNS and Bind) 1.1. A (Very)
  • checksum programs: Running a Security Audit (Building Internet Firewalls)
  • configuration files, startup: Startup Files (TCP/IP Network Administration)
  • domain socket, sending messages through with ndc: ndc and controls (BIND 8) (DNS and Bind)
  • dynamically loadable modules: Using Dynamically Loadable Modules (TCP/IP Network Administration)
  • file modification time (mtime): DNS NOTIFY (Zone Change Notification) (DNS and Bind)
  • ifconfig command, overview: The ifconfig Command (TCP/IP Network Administration)
  • Internet services on: How Are Services Managed Under Unix? (Building Internet Firewalls)
  • • Which Services Should You Leave Enabled? (Building Internet Firewalls)
    • disabling: Disabling Services Under Unix (Building Internet Firewalls)
    • • Specific Unix Services to Disable (Building Internet Firewalls)
    • installing and modifying: Installing and Modifying Services (Building Internet Firewalls)
    • protecting with TCP Wrapper: Using the TCP Wrapper Package to Protect Services (Building Internet Firewalls)
  • ipfilter: ipfilter (Building Internet Firewalls)
  • • compared to ipchains: Comparing ipfilter and ipchains (Building Internet Firewalls)
  • lpr command: Print Services (TCP/IP Network Administration)
  • machine
  • • configuring: Reconfiguring for Production (Building Internet Firewalls)
    • securing: Securing Unix (Building Internet Firewalls)
  • MRTG: Using MRTG (Essential SNMP)
  • Network Access Layer: Network Access Layer (TCP/IP Network Administration)
  • networking software included with: Getting BIND (DNS and Bind)
  • NIS maps: Network Information Service (TCP/IP Network Administration)
  • NMS suites: NMS Suites (Essential SNMP)
  • • NMS Suites (Essential SNMP)
  • operating system versions: Which Version of Unix? (Building Internet Firewalls)
  • passwords: Passwords (Building Internet Firewalls)
  • port numbers: Port Numbers (TCP/IP Network Administration)
  • protocol numbers: Protocol Numbers (TCP/IP Network Administration)
  • r commands
  • • disabling: Secure Shell (TCP/IP Network Administration)
    • security considerations: Secure the r Commands (TCP/IP Network Administration)
  • recommended SSH configuration: Recommended Setup (SSH, The Secure Shell)
  • recording logins: Who's Logging into My Machine? (I-Am-in) (Essential SNMP)
  • routing tables: The Routing Table (TCP/IP Network Administration)
  • serial ports, troubleshooting: Troubleshooting Serial Connections (TCP/IP Network Administration)
  • services: Port Numbers (TCP/IP Network Administration)
  • software, for system monitoring: Consider Using Software to Automate Monitoring (Building Internet Firewalls)
  • supporting software: Supporting Software (Essential SNMP)
  • • Supporting Software (Essential SNMP)
  • system logs, setting up: Setting Up System Logs on Unix (Building Internet Firewalls)
  • SystemEDGE, extensibility for: SystemEDGE (Essential SNMP)
  • TCP/IP and: TCP/IP and the Internet (TCP/IP Network Administration)
  • trend-analysis software: Trend Analysis (Essential SNMP)
  • vendor-specific software: Element Managers (Vendor-Specific Management) (Essential SNMP)
  • vmstat utility: Using External Data (Essential SNMP)
  • window system: Network Window Systems (Building Internet Firewalls)
• Unix-specific resolver configurations: Vendor -Specific Options (DNS and Bind)
• • Compaq's Tru64 Unix and Digital Unix (DNS and Bind)
• Unknown host error (ping command): Testing Basic Connectivity (TCP/IP Network Administration)
• UNKNOWN keyword (security): tcpd access control files (TCP/IP Network Administration)
• unknown query types: BIND 4.9 and 8 statistics (DNS and Bind)
• unknown transmission points: pathchar (Network Troubleshooting Tools)
• unmanaged hubs and switches: Mapping or Diagramming (Network Troubleshooting Tools)
• unpacking
• • software: Generic Installs (Network Troubleshooting Tools)
  • Solaris packages: Solaris Packages (Network Troubleshooting Tools)
• unreachable devices or hosts
• • ARP tables and: arp (Network Troubleshooting Tools)
  • checking with getif: SNMP Tools (Network Troubleshooting Tools)
  • checking with tkined: ICMP monitoring (Network Troubleshooting Tools)
  • ping and: Interpreting results (Network Troubleshooting Tools)
  • routing troubleshooting: Routing (Network Troubleshooting Tools)
  • traceroute and: Path Discovery with traceroute (Network Troubleshooting Tools)
  • • Path Discovery with traceroute (Network Troubleshooting Tools)
• unreachable message: Common Syslog Messages (DNS and Bind)
• unreachable networks
• • ping and: Interpreting results (Network Troubleshooting Tools)
  • traceroute and: Path Discovery with traceroute (Network Troubleshooting Tools)
• unreachable nodes: The netmon Process (Essential SNMP)
• • The netmon Process (Essential SNMP)
  • Configuring Polling Intervals (Essential SNMP)
  • Error Responses (Essential SNMP)
• Unreachable Port message: Tracing Routes (TCP/IP Network Administration)
• unresolved addresses in ARP tables: arp (Network Troubleshooting Tools)
• Unsolicited Commercial Email (UCE): Junk mail (Building Internet Firewalls)
• unspecified addresses, IPv6: IP Version 6 unspecified address (Managing NFS and NIS)
• unspecified error message: Unspecified Error (DNS and Bind)
• UP flag, ifconfig: Examining interfaces (Managing NFS and NIS)
• • Checking the Interface with ifconfig (TCP/IP Network Administration)
• update category: BIND 8 categories (DNS and Bind)
• update commands (nsupdate): DNS Dynamic Update (DNS and Bind)
• update (EGP trace option): The egp Statement (TCP/IP Network Administration)
• update forwarding: DNS Dynamic Update (DNS and Bind)
• update keyword (dbmmanage command): Improved user authentication (TCP/IP Network Administration)
• UPDATE messages (BGP): Border Gateway Protocol (TCP/IP Network Administration)
• update-policy zone substatement: TSIG-Signed Updates (DNS and Bind)
• • TSIG and: Using TSIG (DNS and Bind)
• updates, avoiding polling during: Polling and Thresholds (Essential SNMP)
• updates (EGP): Exterior Gateway Protocol (TCP/IP Network Administration)
• updates, NIS+: NIS+ (Managing NFS and NIS)
• updating
• • authorization files: Updating .rhosts, hosts.equiv, etc. (DNS and Bind)
  • dynamically (see dynamic update)
  • files: Tables (Essential SNMP)
  • graphs: Creating a threshold (Essential SNMP)
  • map files: Managing map files (Managing NFS and NIS)
  • ntop results: Web mode (Network Troubleshooting Tools)
  • • Web mode (Network Troubleshooting Tools)
  • password files: Password file updates (Managing NFS and NIS)
  • root hints file: Keeping the Root Hints Current (DNS and Bind)
  • • Keeping the Root Hints Current (DNS and Bind)
  • stack fingerprint files: queso (Network Troubleshooting Tools)
  • tabular data: Tables (Essential SNMP)
  • zone data files: Updating Zone Data Files (DNS and Bind)
• updetach option (pppd): The PPP Daemon (TCP/IP Network Administration)
• uploading programs on HTTP servers: Running unexpected external programs (Building Internet Firewalls)
• UPS (uninterruptible power system): Recommendations (DNS and Bind)
• UPSs (uninterruptible power supplies): In the End (Essential SNMP)
• • APC Symetra (Essential SNMP)
• URLs
• • APNIC registry: Checking That Your Network Is Registered (DNS and Bind)
  • ARIN registry: Checking That Your Network Is Registered (DNS and Bind)
  • BIND: Handy Mailing Lists and Usenet Newsgroups (DNS and Bind)
  • FTP sites: Obtaining the Example Programs (DNS and Bind)
  • global positioning: Location (DNS and Bind)
  • HP-UX patch archive: HP's HP-UX (DNS and Bind)
  • ICANN: Top-Level Domains (DNS and Bind)
  • Internet Software Consortium: The History of BIND (DNS and Bind)
  • IRIX patch archive: Silicon Graphics' IRIX (DNS and Bind)
  • Modify Tool: Delegating an in-addr.arpa Zone (DNS and Bind)
  • Net\:\:DNS module: Perl Developing with Net::DNS (DNS and Bind)
  • registrars, list of: Choosing a registrar (DNS and Bind)
  • RIPE registry: Checking That Your Network Is Registered (DNS and Bind)
  • security vulnerabilities: BIND Version (DNS and Bind)
  • us domain: Back in the U.S.A. (DNS and Bind)
  • • delegation policy of: The us domain (DNS and Bind)
  • WebMagic: Using whois (DNS and Bind)
  • Webmin utility: Solution 1 (DNS and Bind)
  • whois lookup service: Where in the World Do I Fit? (DNS and Bind)
  • • Using whois (DNS and Bind)
• us domain
• • searching name space of: The us domain (DNS and Bind)
  • URL for: Back in the U.S.A. (DNS and Bind)
• USAGE messages: Common Syslog Messages (DNS and Bind)
• usage patterns: What, When, and Where (Network Troubleshooting Tools)
• usage profile: Learn What the Normal Usage Profile Is (Building Internet Firewalls)
• Use field (Linux routing table): The Routing Table (TCP/IP Network Administration)
• • The Routing Table (TCP/IP Network Administration)
• use-host-decl-names parameter (dhcpd): Configuration Parameters (TCP/IP Network Administration)
• use-id-pool option (named): The options Statement (TCP/IP Network Administration)
• use-lease-addr-for-default-route parameter (dhcpd): Configuration Parameters (TCP/IP Network Administration)
• Use Nice field (sendmail): Defining Mailers (TCP/IP Network Administration)
• use statements in Perl: Retrieving a Single MIB Value (Essential SNMP)
• • SNMP Support for Perl (Essential SNMP)
• UseCanonicalName directive (httpd.conf file): Basic Configuration Directives (TCP/IP Network Administration)
• use_ct_file (sendmail): FEATURE (TCP/IP Network Administration)
• use_cw_file (sendmail): FEATURE (TCP/IP Network Administration)
• usehostname option (pppd command): PPP Daemon Security (TCP/IP Network Administration)
• • The PPP Daemon (TCP/IP Network Administration)
• UseLogin: User logins and shells (SSH, The Secure Shell)
• • Selecting a Login Program (SSH, The Secure Shell)
• Usenet: Getting More Information (Essential SNMP)
• • Getting Help (Essential SNMP)
• usenet mailer: MAILER (TCP/IP Network Administration)
• Usenet news: Usenet News (Building Internet Firewalls)
• Usenet newsgroups (see newsgroups)
• Usenet newsgroups for BIND: Handy Mailing Lists and Usenet Newsgroups (DNS and Bind)
• USENIX Association: USENIX Association (Building Internet Firewalls)
• • Sources of Information (Network Troubleshooting Tools)
  • conferences: USENIX Association Conferences (Building Internet Firewalls)
• usepeerdns option (pppd): The PPP Daemon (TCP/IP Network Administration)
• UsePrivilegedPort: Forcing a nonprivileged local port (SSH, The Secure Shell)
• User: Remote Account Name (SSH, The Secure Shell)
• user accounts, on bastion host: Disabling User Accounts on Bastion Hosts (Building Internet Firewalls)
• • Disabling User Accounts on Bastion Hosts (Building Internet Firewalls)
• user authentication (see authentication)
• • AFS (Andrew File System): AFS Access Problems (SSH, The Secure Shell)
• user-based authentication in SNMPv3: The SNMPv3 Engine (Essential SNMP)
• User-based Security Model (USM): snmpusm (Essential SNMP)
• • SNMPv3 Textual Conventions (Essential SNMP)
• USER command (POP): Post Office Protocol (TCP/IP Network Administration)
• User Datagram Protocol (see UDP)
• • Data Communications Model (TCP/IP Network Administration)
• User Datagram Protocol (UDP) (see also UDP)
• • Local Forwarding (SSH, The Secure Shell)
• User directive (Apache): Managing the Swarm (TCP/IP Network Administration)
• /user filesystem, client server sharing: Setting up a diskless client (Managing NFS and NIS)
• user groups: Sources of Information (Network Troubleshooting Tools)
• user information, Unix file permission checking: Preface (Managing NFS and NIS)
• user keys: The Architecture of an SSH System (SSH, The Secure Shell)
• user lists: Control file details (SSH, The Secure Shell)
• User Manager for Domains: The User Manager (Building Internet Firewalls)
• user option (pppd): The PPP Daemon (TCP/IP Network Administration)
• user-oriented security: User-oriented network security (Managing NFS and NIS)
• user profiles (NNM): Profiles for Different Users (Essential SNMP)
• user (sendmail K command value): The sendmail K Command (TCP/IP Network Administration)
• user setting (smb.config file): Configuring a Samba Server (TCP/IP Network Administration)
• UserConfigDirectory: User SSH directory (SSH, The Secure Shell)
• • Global and local files (SSH, The Secure Shell)
  • securing client directories: NFS Security Risks (SSH, The Secure Shell)
• USERCTL (Linux configuration value): Assigning an Address (TCP/IP Network Administration)
• UserDir directive (httpd.conf file): Defining Where Things Are Stored (TCP/IP Network Administration)
• UserID field, NFS log record: NFS server logging (Managing NFS and NIS)
• Userid field (sendmail): Defining Mailers (TCP/IP Network Administration)
• USERID option (xinetd): Controlling Access with xinetd (TCP/IP Network Administration)
• UserKnownHosts: Fetching public keys of known hosts (SSH, The Secure Shell)
• • recommended setting: /etc/ssh2/sshd2_config (SSH, The Secure Shell)
• UserKnownHostsFile: Moving the known hosts files (SSH, The Secure Shell)
• usernames
• • and netgroups: Netgroups (Managing NFS and NIS)
  • hostname and: Enabling transparent access (Managing NFS and NIS)
  • netgroups: Using netgroups (Managing NFS and NIS)
  • NFS: Networking Fundamentals (Managing NFS and NIS)
• users
• • authentication: ssh (Network Troubleshooting Tools)
  • data collection: Legal and ethical considerations (Network Troubleshooting Tools)
  • dissatisfaction: Performance Measurement Tools (Network Troubleshooting Tools)
  • graphing number logged in (MRTG): Graphing Other Objects (Essential SNMP)
  • keys, superuser: Creating keys (Managing NFS and NIS)
  • managing: Host Management Revisited (Essential SNMP)
  • NNM profiles: Profiles for Different Users (Essential SNMP)
  • passwords, updating: Password file updates (Managing NFS and NIS)
  • privacy of: Legal and ethical considerations (Network Troubleshooting Tools)
  • server response time and: Measuring performance (Managing NFS and NIS)
  • SNMPv3
  • • cloning: Using snmpusm to manage users (Essential SNMP)
    • creating: Configuring SNMPv3 for a Cisco Router (Essential SNMP)
    • • Configuring SNMPv3 for Net-SNMP (Essential SNMP)
      • Configuring SNMPv3 for Net-SNMP (Essential SNMP)
    • default configurations: Simplifying commands by setting defaults (Essential SNMP)
    • engine IDs and data: Using snmpusm to manage users (Essential SNMP)
    • maintaining with snmpusm: Using snmpusm to manage users (Essential SNMP)
    • usmUser table: Configuring SNMPv3 (Essential SNMP)
  • trusted: Trusted hosts and trusted users (Managing NFS and NIS)
  • user-level automounters: User-level automounters (Managing NFS and NIS)
  • see also superusers: Creating keys (Managing NFS and NIS)
• users, advising of changes: Managing the Transition to Subdomains (DNS and Bind)
• • Removing Parent Aliases (DNS and Bind)
• UseRsh: compatibility (SSH, The Secure Shell) 4.1.5.12. R-commands (rsh)
• • RSH issues (SSH, The Secure Shell)
• USM (User-based Security Model): snmpusm (Essential SNMP)
• • SNMPv3 Textual Conventions (Essential SNMP)
• USR1 and USR2 signals: Using Signals (DNS and Bind)
• /usr filesystem, missing: Missing /usr (Managing NFS and NIS)
• /usr/hosts directory: The /usr/hosts Directory (SSH, The Secure Shell)
• /usr/etc/resolv.conf (see resolv.conf file)
• /usr/local/bin directory, executables: Solving the /usr/local puzzle (Managing NFS and NIS)
• /usr/platform/ directory, client server sharing: Setting up a diskless client (Managing NFS and NIS)
• utilities (see also tools)
• • bindgraph: Capacity Planning (DNS and Bind)
  • bstat: BIND 4.9 and 8 statistics (DNS and Bind)
  • CPU loading: CPU loading (Managing NFS and NIS)
  • dig: Keeping the Root Hints Current (DNS and Bind)
  • • using: Using dig (DNS and Bind)
  • for firewalls: Utilities (Building Internet Firewalls)
  • h2n: Tools (DNS and Bind)
  • • Generating Zone Data Files from the Host Table (DNS and Bind)
  • host: Good Parenting (DNS and Bind)
  • • using: Using host (DNS and Bind)
  • iostat: I/O statistics (Managing NFS and NIS)
  • makedbm: Map naming (Managing NFS and NIS)
  • Modify Tool: Delegating an in-addr.arpa Zone (DNS and Bind)
  • named-bootconf: Setting Up a BIND Configuration File (DNS and Bind)
  • named-xfer: Using Signals (DNS and Bind)
  • • How to Use named-xfer (DNS and Bind)
    • changing location of: Changing System File Locations in BIND 8 and 9 (DNS and Bind)
  • NFS Server Logging utility: NFS server logging (Managing NFS and NIS)
  • nfsbug: nfsbug (Managing NFS and NIS)
  • nslookup (see nslookup utility)
  • nsupdate: DNS Dynamic Update (DNS and Bind)
  • patchadd: Dataless clients (Managing NFS and NIS)
  • rdist: Primary Master and Slave Servers (DNS and Bind)
  • rpcinfo: RPC registration (Managing NFS and NIS)
  • rsync: Primary Master and Slave Servers (DNS and Bind)
  • Socket.pm: Tools (DNS and Bind)
  • spray: Gauging Ethernet interface capacity (Managing NFS and NIS)
  • top: Capacity Planning (DNS and Bind)
  • Webmin: Solution 1 (DNS and Bind)
  • ypcat, command line: Removing an NIS slave server (Managing NFS and NIS)
  • ypinit: Installing the NIS master server (Managing NFS and NIS)
  • yppasswd: Password file updates (Managing NFS and NIS)
  • yppush: Map distribution (Managing NFS and NIS)
  • ypstop: Installing NIS slave servers (Managing NFS and NIS)
  • ypxrf: Regular map transfers (Managing NFS and NIS)
• utilization statistics (RMON): RMON (Network Troubleshooting Tools)
• UUCP protocol: Simple Mail Transfer Protocol (TCP/IP Network Administration)
• uucpdomain (sendmail database feature): FEATURE (TCP/IP Network Administration)
• UUCPSMTP macro (sendmail): sendmail Macros (TCP/IP Network Administration)

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