To compensate for network latency during playing chess games over internet,
internet chess servers like Fics and
Icc use proprietary protocols called
timestamp. They distribute statically
linked stripped binaries which acts like a bridge between chess clients and the
To make sure these tools don’t do anything nasty, I use
sydbox to sandbox them.
master extends network
whitelisting support for network mode
deny. So I use it like:
SYDBOX_NO_CONFIG makes sydbox not read its
configuration file and SYDBOX_NET_WHITELIST adds the address, in this case
freechess.org, to the network whitelist.