01-16-2013
Command for Host Name to IP Address or Vice Versa
Hi,
In unix or linux is there any command exist to identify Host Name to IP Address or Vice Versa?
Thanks in advance
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LEARN ABOUT LINUX
mod_security
mod_security(3erl) Erlang Module Definition mod_security(3erl)
NAME
mod_security - Security Audit and Trailing Functionality
DESCRIPTION
Security Audit and Trailing Functionality
EXPORTS
list_auth_users(Port) -> Users | []
list_auth_users(Address, Port) -> Users | []
list_auth_users(Port, Dir) -> Users | []
list_auth_users(Address, Port, Dir) -> Users | []
Types Port = integer()
Address = {A,B,C,D} | string() | undefined
Dir = string()
Users = list() = [string()]
list_auth_users/1 , list_auth_users/2 and list_auth_users/3 returns a list of users that are currently authenticated. Authentica-
tions are stored for SecurityAuthTimeout seconds, and are then discarded.
list_blocked_users(Port) -> Users | []
list_blocked_users(Address, Port) -> Users | []
list_blocked_users(Port, Dir) -> Users | []
list_blocked_users(Address, Port, Dir) -> Users | []
Types Port = integer()
Address = {A,B,C,D} | string() | undefined
Dir = string()
Users = list() = [string()]
list_blocked_users/1 , list_blocked_users/2 and list_blocked_users/3 returns a list of users that are currently blocked from access.
block_user(User, Port, Dir, Seconds) -> true | {error, Reason}
block_user(User, Address, Port, Dir, Seconds) -> true | {error, Reason}
Types User = string()
Port = integer()
Address = {A,B,C,D} | string() | undefined
Dir = string()
Seconds = integer() | infinity
Reason = no_such_directory
block_user/4 and block_user/5 blocks the user User from the directory Dir for a specified amount of time.
unblock_user(User, Port) -> true | {error, Reason}
unblock_user(User, Address, Port) -> true | {error, Reason}
unblock_user(User, Port, Dir) -> true | {error, Reason}
unblock_user(User, Address, Port, Dir) -> true | {error, Reason}
Types User = string()
Port = integer()
Address = {A,B,C,D} | string() | undefined
Dir = string()
Reason = term()
unblock_user/2 , unblock_user/3 and unblock_user/4 removes the user User from the list of blocked users for the Port (and Dir) spec-
ified.
THE SECURITYCALLBACKMODULE
The SecurityCallbackModule is a user written module that can receive events from the mod_security Erlang Webserver API module. This module
only exports the function(s), event/4,5 , which are described below.
EXPORTS
event(What, Port, Dir, Data) -> ignored
event(What, Address, Port, Dir, Data) -> ignored
Types What = atom()
Port = integer()
Address = {A,B,C,D} | string() <v>Dir = string()
Data = [Info]
Info = {Name, Value}
event/4 or event/4 is called whenever an event occurs in the mod_security Erlang Webserver API module ( event/4 is called if Address
is undefined and event/5 otherwise). The What argument specifies the type of event that has occurred, and should be one of the fol-
lowing reasons; auth_fail (a failed user authentication), user_block (a user is being blocked from access) or user_unblock (a user
is being removed from the block list).
Note:
Note that the user_unblock event is not triggered when a user is removed from the block list explicitly using the unblock_user function.
Ericsson AB inets 5.5.2 mod_security(3erl)