BIND script to create PTR records

BIND script to create PTR records

Just in case you ever need to manage an instance of BIND manually, you will have the pain of remembering to update the PTR records. Here's a quick script to create the PTR records

For those of you that are looking for an alternative, I suggest you use PowerDNS as a backend and PowerDNSAdmin as a nice front end

Here's the script

#!/bin/sh

NETWORKS=$(cat << ENDNET
10.10.1
10.10.2
.
.
.
10.10.99
ENDNET
)

REV_HEADER=$(cat <;
; BIND reverse data file for NETWORK
; Do not edit manually, but run /etc/bin/zones/$0
; after editing /etc/bin/zones/mydomain.tld.db
;
\$TTL    604800
@       IN      SOA     mydns-server.mydomain.tld. root.mydns-server.mydomain.tld. (
                         SERIAL         ; Serial
                         604800         ; Refresh
                          86400         ; Retry
                        2419200         ; Expire
                         604800 )       ; Negative Cache TTL
;
@       IN      NS      mydns-server.mydomain.tld.
END
)

for NETWORK in $NETWORKS ; do
    echo $NETWORK
    NEWSERIAL=`grep Serial db.${NETWORK} | awk '{printf "%6s", $1+1}'`
    echo $NEWSERIAL
    echo "$REV_HEADER" | sed -e "s/SERIAL/$NEWSERIAL/" -e "s/NETWORK/$NETWORK/" > db.${NETWORK}.new
    egrep "$NETWORK\." mydomain.tld.db | grep -v '^;' | awk 'split($4, ipaddr, ".") {printf "%-3s     IN      PTR     %s.mydomain.tld.\n", ipaddr[4], $1}' | sort -n >> db.${NETWORK}.new
    mv db.${NETWORK}.new db.${NETWORK}
done

New devices and updating their names with lspci

New devices and updating their names with lspci

We just received a new Exablaze X25 card to review and found lspci was reporting the device as "Exablaze Device 0009"

I just found out that lspci doesn't interrogate the card for the name, but uses a lookup table that can be updated with the update-pciids command, which simply downloads from http://pciids.sourceforge.net/v2.2/pci.ids (on my Ubuntu 16 box), but https://github.com/pciutils/pciids says it takes it from http://pci-ids.ucw.cz/pci.ids.

And here is my X25 card as device 0009:

1ce4  Exablaze
 0001  ExaNIC X4
 0002  ExaNIC X2
 0003  ExaNIC X10
 0004  ExaNIC X10-GM
 0005  ExaNIC X40
 0006  ExaNIC X10-HPT
 0007  ExaNIC X40
 0008  ExaNIC V5P
 0009  ExaNIC X25