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HP OpenVMS Systems Documentation |
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Compaq TCP/IP Services for OpenVMS
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Displays information from the hosts database.If the BIND resolver is enabled, information from the BIND database is also displayed.
Related commands: SET HOST
SHOW HOST [ host ]
[ /ADDRESS=IP_address ]
[ /DOMAIN=domain ]
[ /LOCAL ]
[ /OUTPUT=file ]
[ /SERVER=server ]
Requires read access to the hosts database.
host
Optional. Default: All hosts.All alias names for the specified host are displayed.
- If a host has more than one IP address and you specify the name, all its addresses and aliases are displayed.
- If a host has multiple IP addresses and you specify an alias that is defined on multiple IP addresses, only the first IP address and aliases are displayed.
- If you do not specifiy the host parameter or if you use a wildcard, all hosts from the local and BIND databases are displayed.
- If you use a wildcard to complete a host name, no BIND information is displayed.
- If you specify a host, entries are displayed first from the local hosts database, if they exist; otherwise, entries from the BIND database are displayed, if they exist.
/ADDRESS=IP_address
Optional. Default: None.Allows you to select a host by IP address.
- If a host has more than one IP address and you specify the name, all IP addresses and aliases for the host are displayed.
- If a host has multiple IP addresses and you specify an alias that is defined on multiple IP addresses, only the first IP address and aliases are displayed.
- Recommended: Use the host parameter instead of this qualifier.
/DOMAIN=domain
Optional. Default: Name service domain.Domain to be used by the local host. However, the definition of the domain name is valid only during the execution of the current SHOW HOST command. The BIND request is sent to the specified domain.
/LOCAL
Optional.Limits name-to-address lookups to the local hosts database.
/OUTPUT=file
Optional. Default: Screen display.Specifies a file for the output of the SHOW HOST command.
/SERVER=server
Optional. Default: Name server list.BIND servers to be used. The definition of the server name list is valid only during the execution of the current SHOW HOST command. The request is sent to the specified server.
The list is ordered by request preference. For example, the initial request is sent to the first host in the list. If that host is unavailable, the request is sent to the second host in the list, and so on.
You can specify a maximum of three servers.
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TCPIP> SHOW HOST /LOCAL
LOCAL database
Host address Host name
11.180.6.60 aa80z, AA80Z
11.180.4.1 abbss.zz3.ddd.com, abbss, ABBSS, ab, a
11.180.6.8 alibam, ALIBAM, alb
11.180.5.5 alLpin, ALLPIN, allpine.zz3.ddd.com
11.180.6.30 amfer, AMFER
11.180.6.2 ankles, ANKLES
11.180.6.73 auntie, AUNTIE, maitai
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.
.
11.180.4.200 zlepin, ZLEPIN
11.180.20.1 zooley, ZOOLEY, zoo
11.180.6.37 zxtra, ZXTRA
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The /LOCAL qualifier displays only the hosts in the local database.
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TCPIP> SHOW HOST ABCXYZ
BIND database
Server: 128.182.4.164 ZSERVE
Host address Host name
128.180.5.164 ABCXYZ.one.nam.com
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Displays information about a host found in the BIND database. Note that the display includes the name and address of the BIND server that supplied the information.
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TCPIP> SHOW HOST *
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Displays the entire hosts database and BIND database (if the resolver is enabled). In the following examples, host heron has the following IP addresses and aliases:
IP Address Host Aliases 100.1 heron HOST_1A
HOST_1B
HOST_ALIAS100.2 heron HOST_2A
HOST_2B
HOST_ALIAS
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TCPIP> SHOW HOST HERON
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Shows all the IP addresses and aliases for the host HERON.
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TCPIP> SHOW HOST HOST_1A
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Shows IP address 100.1 and the aliases HOST_1A, HOST_1B, and HOST_ALIAS.
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TCPIP> SHOW HOST HOST_ALIAS
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Shows the host and all aliases for addresses 100.1 and 100.2. Shows all the IP addresses and aliases for host heron .
Displays information from the running system for Internet interfaces and pseudointerfaces.Related commands: SHOW CONFIGURATION INTERFACE, SET INTERFACE
SHOW INTERFACE [ interface ]
[ /CLUSTER ]
[ /FULL ]
interface
Optional. Default: All interfaces.Specifies the name of an Internet or pseudo-Internet interface. Examples include ZE0, LO0, QE2, QE3.
/CLUSTER
Optional. Default: None.Displays information about the cluster of which the interface is a member.
/FULL
Optional. Default: Brief description is displayed.Displays full information.
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TCPIP> SHOW INTERFACE DE0 /FULL
Interface: DE0
IP_Addr: 126.65.100.102 NETWRK: 255.255.255.0 BRDCST: 126.65.100.255
Ethernet_Addr:AA-00-05-CC-2D-2B MTU: 65535
Flags: UP BRDCST RUN
RECEIVE SEND
Packets 3817269 595744
Errors 0
Collisions: 0
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Displays information about interface DE0.
The flags that can appear in the display include:
- AMCST---The interface will receive multicast packets.
- BRDCAST---Indicates the interface supports broadcast messages.
- DBG---Driver-level debugging is enabled.
- LOOP---The interface is a loopback mode. Packets transmitted on this interface will be looped back in the driver and not be transmitted out on the network.
- MCAST---The interface supports multicast packets. However, this does not mean that a multicast address is configured for the interface.
- NOARP---The interface is not using address resolution protocol (ARP). It will neither transmit nor respond to ARP requests.
- PFCPY---All packets transmitted on this interface are copied and passed to the packet filter program.
- PTP--- The interface is point-to-point link. This is a read-only flag that is set by the driver.
- RUN---Indicates the interface is operational. The driver has allocated resources for the interface and is ready to transmit and receive packets. This option is not applicable to loopback devices, for example, LO0.
- SMPX---The interface cannot hear its own transmissions.
- UP---Indicates the interface is enabled for use.
- VMTU---The interface supports variable maximum transmission unit (MTU) sizes.
Displays SMTP queue information.Related commands: REMOVE MAIL, SEND MAIL
SHOW MAIL [ user ]
[ /FULL ]
[ /RECIPIENT[=options] ]
[ /ENTRY=n ]
Requires SYSPRV or BYPASS privilege to display information for other users.
user
Optional. Default: All users.Displays SMTP process information of the specified user.
/FULL
Optional. Default: Brief description is displayed.Displays detailed information.
/RECIPIENT[=options]
Optional. Default: ALL.Used with /FULL, displays selected recipient classes. Available options include the following:
ALL Shows failed, sent, and unsent mail messages. FAILED Shows messages that could not be read for a particular recipient. SENT Shows successful deliveries to a particular recipient. UNSENT Shows messages that are as yet unsent. /ENTRY=n
Optional. Default: Your queue entries.Displays information about the specified queue entry number.
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TCPIP> SHOW MAIL
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Displays information about mail messages queued to your process's user name.
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TCPIP> SHOW MAIL /ENTRY=1234
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Displays information about the mail message 1234 in the queue.
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TCPIP> SHOW MAIL /FULL /RECIPIENT=ALL
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Displays detailed information about all mail messages sent by the user of your process's user name.
Displays the names of mapped (logically linked) file systems, also called NFS file systems.Applies to: NFS server
Related commands: MAP, UNMAP, ADD EXPORT, SHOW EXPORT, REMOVE EXPORT, SET CONFIGURATION MAP, SET CONFIGURATION NOMAP, SHOW CONFIGURATION MAP
SHOW MAP [ /path/name ]
/path/name
Optional.Name of the file system (the first element of the UNIX file specification).
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TCPIP> SHOW MAP
Dynamic Filesystem Map
Pathname Logical File System
/water USER$DKC100:
/water USER$DKC100:[WATER]
/duck/pond USER$DKC100:[DUCK.POND.TEAL]
TCPIP>
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Displays all mapped file systems.
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TCPIP> SHOW MAP "/bird"
Dynamic Filesystem Map
Pathname Logical File System
/bird $1$DUA7:
TCPIP>
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Lists mapped file system /bird .
Displays a list of mounted directories at all mount points or at a particular mount point.Related commands: MOUNT, DISMOUNT
SHOW MOUNT [ device ]
[ /ALL ]
[ /FULL ]
[ /HOST=host ]
device
Optional. Default: All mounted file systems.Local device for which to display mount information. Specify one of the following:
- DNFSn: --- the full NFS device name and directory tree, for example, DNFS3:[USER.NOTES]
- Volume label
- Logical name for the device
You can use abbreviations and wildcards.
/ALL
Optional.If you also specify device, displays information for all NFS server hosts with mounted file systems on this device.
If you do not specify device, displays information for all NFS server hosts with mounted file systems on any device.
Not valid with /HOST.
/FULL
Optional. Default: Brief description is displayed.Displays the full, current operating parameters related to each mount.
/HOST=host
Optional. Default: All NFS servers with file systems currently mounted.NFS server on which the physical files reside.
Not valid with /ALL.
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TCPIP> SHOW MOUNT
_DNFS1:[000000] automount (inactivity timer 0 00:23:00.00), mounted
SIGMA.PROCESS.COM:/usr
_DNFS2:[000000] mounted
IRIS.PROCESS.COM:/usr/users
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Shows the characteristics of all mounted file systems on all local NFS devices.
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TCPIP> SHOW MOUNT DNFS3: /ALL
_DNFS3:[A.B] mounted
SIGMA.PROCESS.COM:/usr
_DNFS3:[A.C] mounted
SIGMA.PROCESS.COM:/work
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Shows the characteristics of all mounted file systems on local device DNFS3:.
Displays SMTP routing information. If you omit destination, you see the entries in the local Mail Exchange (MX) database. If you specify destination, you see all the entries in all the databases that TCP/IP Services would look at, if necessary, to resolve the address.To send mail, SMTP looks up addresses in one or more databases (if necessary) in the following order:
- Local MX databse
- Remote MX database
- BIND server database
- Local hosts database
Related command: SET MX_RECORD
SHOW MX_RECORD [ destination ]
[ /GATEWAY=host ]
[ /OUTPUT=file ]
destination
Optional. Default: All entries in the local MX database.Final destination host name.
/GATEWAY=host
Optional. Default: All destinations.Displays the destinations that are accessed through the specified gateway.
/OUTPUT=file
Optional. Default: Screen display.Sends the output to the specified file.
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TCPIP> SHOW MX_RECORD SWAN
BIND MX database
Server: 18.18.218.10 GREAT.HORNED.OWL.COM
Gate address Preference Gate name
18.18.218.10 50 WATER.PIPIT.WEBBED.FEET.COM
18.1.218.16 100 bd-gw.purple.martin.com
188.88.206.2 200 great.horned.owl.com
199.9.214.1 300 bird.food.seeds.worms.com
BIND database
Server: 18.18.218.10 WATER.PIPIT.WEBBED.FEET.COM
Host address Host name
18.18.100.10 SWAN.WEBBED.FEET.COM
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Displays, in order of preference, the routing hops to reach host SWAN if an attempt fails. The local host tries to route through:
- WATER.PIPIT.WEBBED.FEET.COM
- bd-gw.purple.martin.com
- great.horned.owl.com
- bird.food.seeds.worms.com
Both the alternate gateway and the zone affect how SMTP determines where to relay nonlocal mail.
MX records tell mailers where to relay mail that is destined for a given host. In the display:
- The Gate name field tells where to relay the mail.
- The Gate address field gives the gateway's IP address.
- The Preference field gives each MX record a precedence. A lower preference number means a higher precedence.
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TCPIP> SHOW MX_RECORD CROW.COM
BIND MX database
Server: 18.18.218.10 WATER.PIPIT.WEBBED.FEET.COM
Gate address Preference Gate name
159.228.12.253 1 cawcaw.crow.com
159.228.12.254 2 scare.crow.com
TCPIP>
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Displays the MX record for destination host crow.com . In the display:
- The Gate name field tells where to relay the mail.
- The Gate address field gives the gateway's IP address.
- The Preference field gives each MX record a precedence. A lower preference number means higher precedence.
In this example, the local host name is WATER, the alternate gateway is scare.crow.com , and the zone is crow.com . The first preference for delivering mail to crow.com is to send to cawcaw.crow.com .
If you have not defined an alternate gateway, SMTP tries to relay the mail to scare.crow at IP address 158.228.12.253. It uses the MX records to determine the host to which to relay mail. SMTP tries to relay the mail to each gateway host, in order of preference, until it either successfully transfers the mail or runs out of MX records to try. If there is no alternate gateway, the zone is not used.
If you have defined an alternate gateway, SMTP goes through the list of MX records, but it does not automatically try to relay the mail directly to the gateway. SMTP checks whether the gateway host name is outside or inside the SMTP zone (as defined with SET SMTP CONFIGURATION). If the gateway is inside the SMTP zone, SMTP tries to relay the mail directly to the gateway host. If the gateway is outside the zone, SMTP sends the mail to the alternate gateway.
Logs information about the BIND resolver.Related commands: SET NAME_SERVICE, SHOW CONFIGURATION NAME_SERVICE
SHOW NAME_SERVICE[ /STATISTICS ]
/STATISTICS
Optional.Dumps statistics to the log file TCPIP$BIND_SERVER_STATISTICS.LOG. In previous versions of the TCP/IP Services product, this qualifier displayed statistical information on the screen.
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TCPIP> SHOW NAME_SERVICE
BIND Resolver Parameters
Local domain: TCPIP.OWL.ROC.COM
System
State: Started, Enabled
Transport: UDP
Domain: tcpip.owl.roc.com
Retry: 4
Timeout: 4
Servers: LOCALHOST, tcpip.owl.roc.com
Process
State: Started, Enabled
Transport: UDP
Domain: 11.180.34.3
Retry: 4
Timeout: 4
Servers: LOCALHOST, lark, crow.moa.awk.com
TCPIP>
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Shows systemwide and process-specific parameter settings for the BIND resolver.
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TCPIP> SHOW NAME_SERVICE /STATISTICS
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Logs current BIND server statistics to the file TCPIP$BIND_SERVER_STATISTICS.LOG. The following sample shows such a log file.
+++ Statistics Dump +++ (922292822) Wed Mar 24 11:27:02 34250 time since boot (secs) 15670 time since reset (secs) 12 Unknown query types 20000 A queries 540 SOA queries 2399 MX queries 867 ANY queries 3 AXFR queries ++ Name Server Statistics ++ (Legend) RR RNXD RFwdR RDupR RFail RFErr RErr RAXFR RLame ROpts SSysQ SAns SFwdQ SDupQ SErr RQ RIQ RFwdQ RDupQ RTCP SFwdR SFail SFErr SNaAns SNXD (Global) 2 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 5 0 0 0 0 0 -- Name Server Statistics -- ++ Memory Statistics ++ 3: 9 gets, 2 rem 4: 7 gets, 0 rem (1 bl, 1022 5: 16 gets, 1 rem 6: 7 gets, 5 rem 7: 10 gets, 5 rem 8: 97 gets, 16 rem (1 bl, 485 ff) 13: 6 gets, 4 rem . . . 664: 5 gets, 1 rem (1 bl, 5 ff) 732: 2 gets, 0 rem (1 bl, 5 ff) 1040: 1 gets, 1 rem (1 bl, 2 ff) >= 1100: 23 gets, 9 rem -- Memory Statistics -- --- Statistics Dump --- (907337687) Fri Jan 2 10:14:47 1999
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