Replication is available in MySQL as well.
The difference as compared to SQLyog synchronization explained:
http://www.webyog.com/faq/10_60_en.html
Other related FAQs: http://www.webyog.com/faq/category10.html
An extensive article on data sync: http://www.webyog.com/articles/Using_SQLyo…L_Databases.pdf
SJA is available for LINUX (free) and for Windows (included with SQLyog Enterprise). Refer to these FAQs: http://www.webyog.com/faq/category24.html
If the 'webserver' is not running either Windows or Linux (but some BSD or other *nix variant for instance), the SJA will have to run from a remote client. There are versions for Windows and Linux only.