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Question : what is hosts and bootptab file in HP-UX?
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how are /etc/hosts and /etc/bootptab files in HP-UX different from each other? we use bootptab file in order for computer on our LAN to connect to the internet?
we add entries to the bootptab file in order for pc's on our LAN to connect to internet. what is hosts file use for then?
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Answer : what is hosts and bootptab file in HP-UX?
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bootp is obsolete protocol for configuring network parameters of ethernet machines.
Install random Linux distribution, like one from Mandriva or anything recent called BSD and it will run bootp's modern day replacement called ISC DHCPD.
There you have one config file to replace whatever bootptab did and add a bit more.
Make sure you teach DHCPD to update DNS records, so you do not have to use hosts file any more.
bootptab takes capability database file:
hostname:option=value:
:option=value:
...
:option=value
hostname:
...
Capabilities are these:
bf Bootfile
bs Bootfile size in 512-octet blocks
cs Cookie server address list
df Merit dump file
dn Domain name
ds Domain name server address list
ef Extension file
gw Gateway address list
ha Host hardware address
hd Bootfile home directory
hn Send client's hostname to client
ht Host hardware type (see Assigned Numbers RFC)
im Impress server address list
ip Host IP address
lg Log server address list
lp LPR server address list
ns IEN-116 name server address list
nt NTP (time) Server (RFC 1129)
ra Reply address override
rl Resource location protocol server address list
rp Root path to mount as root
sa TFTP server address client should use
sm Host subnet mask
sw Swap server address
tc Table continuation (points to similar "template" host entry)
td TFTP root directory used by "secure" TFTP servers
to Time offset in seconds from UTC
ts Time server address list
vm Vendor magic cookie selector
yd YP (NIS) domain name
ys YP (NIS) server address
(above is taken form FreeBSD manual pages)
dhcp can offer many more options.
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