dnskeygen - Generates public, private, and shared secret keys for DNS Secu-
/usr/bin/dnskeygen [-DHR] key-size [-zhu] [-p value] [-s value] -n name
-a Specifies that the key cannot be used for authentication.
-c Specifies that the key cannot be used for encryption.
-D Generates a DSA/DSS key. The size (in bytes) must be one of the follow-
ing values: 512, 576, 640, 704, 768, 832, 896, 960, or 1024.
-F Uses a large exponent for key generation (RSA only).
-H Generates an HMAC-MD5 key. The size (in bytes) must be between 1 and
-h Generates a Host key for a host or service.
-n Specifies the name of the key that you generate.
Sets the protocol field value. The default is 2 (E-mail) for Host keys
and 3 (DNS Security) for all others.
-R Generates an RSA key. The size (in bytes) must be between 512 and 4096.
Sets the strength value with which this key signs DNS records. The
default is 1 for Zone keys and 0 for all others.
-u Generates a User key for E-mail or another purpose.
-z Generates a Zone key for DNS validation.
When the dnskeygen command is executed with no options, it generates output
containing a list of its options.
Use the dnskeygen utility to generate and maintain keys for DNS Security.
The utility can generate public and private keys to authenticate zone data
and shared secret keys to use for Request/Transaction signatures.
Although the dnskeygen command supports the full range of options offered
by the Internet Software Consortium's (ISC) original program, at this time,
the operating system supports only the keys it generates for secure dynamic
updates and zone transfers. See bind_manual_setup(7) and the Network
Administration: Services guide for more information about these features.
In the following example, an administrator creates a private key for
authentication of DNS dynamic updates (the forward slash \ indicates line
# dnskeygen -H 1024 -h -c -n pubnet-enterprise_update
** Adding dot to the name to make it fully qualified domain name**
Generating 1024 bit HMAC-MD5 Key for pubnet-enterprise_update.
Generated 1024 bit Key for pubnet-enterprise_update. id=0 alg=157 \
# ls K*
The dnskeygen command generates two files in the directory in which it is
Public key file.
Private key file.
Network Administration: Services