@config limits

Limits and other constants.

max_dbref=<dbref>: The highest dbref an object can have. If 0, there is no limit on database size.
max_attrs_per_obj=<number>: The maximum attributes an object can have.
max_logins=<number>: The maximum number of connected players.
max_guests=<number>: The maximum number of connected guests. If 0, no limit. If -1, limited by the number of guest players in the db.
max_named_qregs=<number>: The maximum number of qregs except for a-z and 0-9. The limit is per-localize()-call.
connect_fail_limit=<count>: The maximum number of times in a 10 minute period that an IP can attempt to log in and fail. Maximum is 50, 0 means no limit.
idle_timeout=<time>: The number of minutes a connection can be idle before getting booted. 0 means no limit.
unconnected_idle_timeout=<time>: The number of minutes a connection can be sitting at the login screen before getting booted. 0 means no limit.

whisper_loudness=<number>: The percentage chance of a whisper/noisy being heard.
starting_quota=<number>: How much quota new players get.
starting_money=<number>: How many pennies new players get.
paycheck=<number>: How many pennies players get each day they log on.
max_pennies=<number>: The maximum pennies an object can have.
mail_limit=<number>: How many @mail messages the folder new mail arrives in may hold. New mail is refused when that folder is full. Messages filed into other folders do not count, so this is not a limit on all the mail a player keeps. Mail stays until it is deleted and purged.
max_depth=<number>: How deep indirect @lock chains can go.
player_queue_limit=<number>: The number of commands a player can have queued at once.
queue_loss=<number>: One in times, queuing a command will cost an extra penny that doesn’t get refunded.
queue_chunk=<number>: How many queued commands get executed in a row before checking for network activity.

function_recursion_limit=<number>: The depth to which softcode functions can call more functions.
function_invocation_limit=<number>: The maximum number of softcode functions that can be called in one command.
guest_paycheck=<number>: How many pennies guests get each day.
max_guest_pennies=<number>: The maximum pennies a guest can have.
player_name_len=<number>: The maximum length of a player name.
queue_entry_cpu_time=<number>: The maximum number of milliseconds a queue entry can take to run.
use_quota=<boolean>: Controls if quotas are used to limit the number of objects a player can own.

max_aliases=<number>: The maximum number of aliases a player can have.
keepalive_timeout=<time>: How often should an ‘Are you still there?’ query be sent to clients, to stop players’ routers booting idle connections?
max_parents=<number>: The maximum number of levels of parenting allowed.
call_limit=<number>: The maximum number of times the parser can be called recursively for any one expression.
chunk_migrate=<number>: Maximum number of attributes that can be moved to disk cache per second.