Hola a todos les enseñare como agregar un admin con el ip bueno en la carpeta user les aparecera algo asi:  

; Users configuration file

; File location: $moddir/addons/amxmodx/configs/users.ini

; Line starting with ; is a comment

; Access flags:

; a - immunity (can't be kicked/baned/slayed/slaped and affected by other commmands)

; b - reservation (can join on reserved slots)

; c - amx_kick command

; d - amx_ban and amx_unban commands

; e - amx_slay and amx_slap commands

; f - amx_map command

; g - amx_cvar command (not all cvars will be available)

; h - amx_cfg command

; i - amx_chat and other chat commands

; j - amx_vote and other vote commands

; k - access to sv_password cvar (by amx_cvar command)

; l - access to amx_rcon command and rcon_password cvar (by amx_cvar command)

; m - custom level A (for additional plugins)

; n - custom level B

; o - custom level C

; p - custom level D

; q - custom level E

; r - custom level F

; s - custom level G

; t - custom level H

; u - menu access

; z - user (no admin)

; Account flags:

; a - disconnect player on invalid password

; b - clan tag

; c - this is steamid/wonid

; d - this is ip

; e - password is not checked (only name/ip/steamid needed)

; k - name or tag is case sensitive.  eg: if you set it so the name "Ham"

;     is protected and case sensitive (flags "k" only), then anybody

;     can use the names "haM", "HAM", "ham", etc, but not "Ham"

; Password:

; Add to your autoexec.cfg: setinfo _pw "<password>"

; Change _pw to the value of amx_password_field

; Format of admin account:

; <name|ip|steamid> <password> <access flags> <account flags>

; Examples of admin accounts:

; "STEAM_0:0:123456" "" "abcdefghijklmnopqrstu" "ce"

; "123.45.67.89" "" "abcdefghijklmnopqrstu" "de"

; "My Name" "my_password" "abcdefghijklmnopqrstu" "a"

"192.235.1.111" "123" "abcdefghijklmnopqrstu" "de"

"AQUI PONES LA IP " "AQUI PONES LA CONTRASEÑA" "abcdefghijklmnopqrstu" "a"

y asi puedes entrar al server con el name q quieres como [Taras.Com]

Y SI lo quieres cambiar te pones cual quieres

ejemplo :   Jhorman