The “lsmod" command is basically used to check installed module with the kernel.To run "lsmod" command yo require root login details.After login into server run following command.
root@admin#lsmod
It will give all modules required with kernel.For example.
root@gunjan#lsmod
Module Size Used by
lockd 61257 0
ipt_owner 6081 4
nls_utf8 6209 0
hfsplus 75589 0
dm_raid45 66509 0
dm_message 6977 1 dm_raid45
dm_region_hash 15681 1 dm_raid45
dm_log 14529 3 dm_mirror,dm_raid45,dm_region_hash
dm_mod 62201 4 dm_mirror,dm_multipath,dm_raid45,dm_log
dm_mem_cache 9537 1 dm_raid45
ipt_REJECT 9537 0
As well as you can also read more on lsmod here
