Re: Running on a port other than 8333

Is there a way to open BerkeleyDB exclusive?

What is your intended goal?

If it is to prevent two bitcoin clients from actively using the same database, you’ll need to employ application-level protection. Crude methods of this include a lockfile or “lock” database entry.

If the intention is to prevent all other access, I’d suggest giving up on that goal 😊 It is highly useful to permit db4 tools to access db4 databases:

db46_archive     db46_deadlock    db46_load        db46_stat
db46_checkpoint  db46_dump        db46_printlog    db46_upgrade
db46_codegen     db46_hotbackup   db46_recover     db46_verify

and just as useful to permit read-only accesses by tools such as gavin’s bitcointools.