FOR 8 GB ram seems good below one
[mysqld]
skip-innodb
skip-name-resolve
thread_concurrency=4
max_connections=500
max_user_connections=8
key_buffer=512M
myisam_sort_buffer_size=64M
join_buffer_size=1M
read_buffer_size=4M
sort_buffer_size=4M
table_cache=1024
thread_cache_size=64
interactive_timeout=20
wait_timeout=15
connect_timeout=8
max_allowed_packet=16M
max_connect_errors=10
query_cache_limit=1M
query_cache_size=32M
query_cache_type=1
long_query_time = 10
safe-show-database
[mysqld_safe]
open_files_limit=8192
[mysqldump]
quick
max_allowed_packet=16M
[myisamchk]
key_buffer=64M
sort_buffer=64M
read_buffer=16M
write_buffer=16M
=======================================================
Good for VPS with 256-512MB RAM.
[mysqld]
max_connections = 400
key_buffer = 16M
myisam_sort_buffer_size = 32M
join_buffer_size = 1M
read_buffer_size = 1M
sort_buffer_size = 2M
table_cache = 1024
thread_cache_size = 286
interactive_timeout = 25
wait_timeout = 15
connect_timeout = 10
max_allowed_packet = 16M
max_connect_errors = 10
query_cache_limit = 1M
query_cache_size = 16M
query_cache_type = 1
tmp_table_size = 16M
skip-innodb
[mysqld_safe]
open_files_limit = 8192
[mysqldump]
quick
max_allowed_packet = 16M
[myisamchk]
key_buffer = 32M
sort_buffer = 32M
read_buffer = 16M
write_buffer = 16M