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Administering TCP/IP
Administering TCP/IP
Configuring TCP/IP client services
The Client Manager interface
Configuring a DNS client
Configuring the /etc/hosts file
Configuring a default route
Configuring name service resolution order
Configuring an NTP client
Deleting a client service
Using network tools
Finding information about a user
Looking up a hostname or an IP address
Pinging other network hosts
Tracing the route taken by network packets
Looking up a name in the Internet domain name directory service
Setting interface parameters
Creating subnets
Establishing user equivalence
The User Equivalence Manager interface
Opening another user's equivalence file
Adding user equivalence
Selecting another host while adding equivalence
Deleting user equivalence
Using the Secure TCP (``Kerberized'') utilities
Protecting against IP address spoofing attacks
Protecting against SYN flood attacks
Setting up anonymous ftp
Adding or removing pseudo-ttys
Configuring UUCP over TCP/IP
Configuring UUCP over TCP/IP with the TCP socket interface
Configuring UUCP over TCP/IP with TLI
Obtaining RFCs from the Internet
Troubleshooting TCP/IP
Verifying the presence of TCP/IP interfaces
Verifying local network connectivity
Verifying remote network connectivity
Troubleshooting problems with netstat
Flushing phantom connections
Troubleshooting packet errors
Monitoring streams usage
Verifying correct routing behavior
Logging troubleshooting information
Configuring Internet Protocol (IP) routing
How routing works
Direct versus indirect routing
Routing table description
Direct routing example
Indirect routing example
Routing table updates
Routing daemons
irdd description
routed description
gated description
Default routes
Autonomous systems -- exterior vs. interior routers
Routing protocols
Internet Router Discovery (IRD) protocol
Routing Information Protocol (RIP)
Open Shortest Path First (OSPF) protocol
Exterior Gateway Protocol (EGP)
Border Gateway Protocol (BGP)
The gated configuration file
Statements of the gated configuration file
gated preferences and route selection
gated route selection criteria
Assigning preferences in gated
gated directive statements
gated trace statements
gated options statements
gated interfaces statements
gated definition statements
gated RIP protocol statement
gated OSPF protocol statement
gated EGP protocol statement
gated BGP protocol statement
gated redirect protocol statement
gated SNMP protocol statement
gated static statements
gated control statements
gated route filtering
Matching AS paths in gated
gated import control statements
gated export control statements
Configuring a system for IP routing
Configuring irdd
Configuring routed
Configuring gated
Administering IP routing
Troubleshooting IP routing
Configuring the Domain Name Service (DNS)
How DNS works
DNS domains and zones
DNS domain and hostnames
The Internet domain structure
Registering a domain name
DNS servers and clients
Primary servers
Stub service
Secondary servers
Caching-only servers
Remote servers
Slave mode servers
DNS resolution
DNS resolvers
DNS root servers
DNS forwarders
The /etc/resolv.conf file
DNS utilities and daemons
Basic DNS configuration
Configuring a caching-only server
Configuring a primary server
Configuring a secondary server
Configuring a remote server
Advanced DNS configuration
Administering and troubleshooting DNS
Troubleshooting DNS
Using nslookup
Using nslookup interactively
nslookup interactive commands
nslookup interactive options
Querying a single name or address
For more about DNS
Configuring a Dynamic Host Configuration Protocol (DHCP) server
When to use SCO DHCP
How the SCO DHCP server works
Manually assigning IP addresses
Dynamically assigning IP addresses
IP address assignment priority
The lease for an assigned IP address
DHCP options
Option overload
Default option values
User-defined options
Making DHCP work with BOOTP
The DHCP Server Manager interface
Configuring user-defined options
Adding or modifying user-defined options
Deleting user-defined options
Configuring DHCP options
Configuring subnet option sets
Adding or modifying a subnet option set
Deleting a subnet option set
Configuring vendor class option sets
Adding or modifying a vendor class option set
Deleting a vendor class option set
Configuring user class option sets
Adding or modifying a user class option set
Deleting a user class option set
Configuring DHCP client option sets
Adding or modifying a client option set
Deleting a client option set
Specifying DHCP server parameters
Specifying the location of the AAS server
Troubleshooting DHCP
Cannot boot client
DHCP cannot find AAS
Clients not being configured with all options
For more about DHCP
Configuring an Address Allocation Server (AAS)
How the SCO Address Allocation Server works
Address database
AAS configuration database
The Address Allocation Manager interface
Configuring address pools
Adding or modifying an address pool
Renaming an address pool
Deleting an address pool
Administering the Address Allocation Server
Querying pool definitions and address allocation
Releasing, disabling, and re-enabling addresses
Configuring the address server
Resetting the state of the AAS database
Troubleshooting the Address Allocation Server
For more about AAS
Configuring the Point-to-Point Protocol (PPP)
Configuring the Serial Line Internet Protocol (SLIP)
Testing connectivity with other sites
The Node Check Manager interface
Adding a node to the ping list
Deleting a node from the ping list
Starting and stopping ping sessions
Configuring the node down alert
Specifying a ping failure action
Changing the ping session interval
Viewing the ping history log
Printing remotely over TCP/IP
How RLP works
The client/server model
Installing and removing RLP
Manually adding remote printers
Deleting printcap entries
Setting up a client
Setting up a print server
Using RLP
4.3BSD clients
SCO OpenServer clients
For more about remote line printing
Configuring Network Time Protocol (NTP) service
Distributing files remotely over TCP/IP
New rdist features
Writing a distfile
Using rdist
Distributing software
Notifying users of updates
Message logging
Configuring IP Filtering (IPfilter)
Index