server optimization, can this harm before i do it?

[erinys]

hi guys.

the people at VB gave the following (only step 1) for mysql optimization.
is it good info? in other words can i do that without problems?

1. Upgrade MySQL 5.0.45 or 5.0.51
2. Edit mysql server's /etc/my.cnf

[mysqld]
safe-show-database
#old_passwords
back_log = 50
skip-innodb
max_connections = 500
key_buffer_size = 64M
myisam_sort_buffer_size = 64M
join_buffer_size = 1M
read_buffer_size = 1M
sort_buffer_size = 2M
table_cache = 4000
thread_cache_size = 256
wait_timeout = 90
connect_timeout = 10
tmp_table_size = 64M
max_heap_table_size = 64M
max_allowed_packet = 64M
net_buffer_length = 16384
max_connect_errors = 10
thread_concurrency = 4
concurrent_insert = 2
table_lock_wait_timeout = 30
read_rnd_buffer_size = 786432
bulk_insert_buffer_size = 8M
query_cache_limit = 4M
query_cache_size = 64M
query_cache_type = 1
query_prealloc_size = 262144
query_alloc_block_size = 65536
transaction_alloc_block_size = 8192
transaction_prealloc_size = 4096
default-storage-engine = MyISAM
max_write_lock_count = 16
collation-server=latin1_general_ci

[mysql.server]
user=mysql

[mysqld_safe]
err-log=/var/log/mysqld.log
pid-file=/var/lib/mysql/mysql.pid
nice = -5
open_files_limit = 8192

[mysqldump]
quick
max_allowed_packet = 16M

[myisamchk]
key_buffer = 64M
sort_buffer = 64M
read_buffer = 16M
write_buffer = 16M

 

[Chrysalis]

the upgrade of mysqld - unlikely its considered standard practice to keep up to date.

the my.cnf, you can try it, if its problamatic just revert it.

 

[vovaNux]

Everything depends on your MySQL usage. It is impossible to give certain advices without it and you will be unable to optimize your server in this way.