[How to open server to public? wan-ip or lan-ip?]

Wrong section. Moved to "Installation Support"

[remove npc]

Go to script_athena.conf and remove mr.smily

Similar for prontera guides

[script_custom dont reading]

Check location of those scripts, 

May be try loading them manually using @loadnpc check console for any errors

[Fix Vending Re-Login rAthena Old Svn]

any particular git version ?

 try this https://github.com/rathena/rathena/commit/3908f4dec4c0c9be31e2810670069b9f472259bf

[Help me with rates]

this section is for forum issues, try posting in support section next time if you have a support question, moved

[HELP item logs npc logs buy and sell to npc logs etc]

ive been reading your replies to your support questions recently , you cant run a server without having minimum knowledge , i know that you are new with and stuff ( which you mentioned multiple times ) , you better read wiki/ docs folder so you can at least understand the answers you getting for you questions, most of the questions you are asking are already answered multiple time in rathena , you just need read and understand, stop expecting SPOON FEED

[HELP item logs npc logs buy and sell to npc logs etc]

you can check logs in your fluxcp ( logging using admin account) / check pick log table in your mysql db

[How to add Credits Point Flux CP]

Login in fluxcp using admin account> go to players account details> click on modify account, add credits>click save

[VPS Support]

Yes

https://github.com/rathena/rathena/wiki/Multiple_Servers

[Frost switching]

Wrong section. Moved to "Source Support".

[Crash mapserver when using @job/@jobchange without <id>]

https://github.com/rathena/rathena/wiki/GDB

[Item Description Problem]

There is a file bamed idnum2itemdesctable.txt in your grf data folder, open it and find the item you if you want description to be changed and edit it then save

[R> @afk command with pub]

8 minutes ago, core said:

Hi sir i cant understand any other guide that have a detailed on hot to put it ?

just copy paste that code into to your atcommand.c , like any other commands in it, just open the file and go through it and youll know what to do xD

[Item Description Problem]

Check "Defining Items clientside" in bellow mentioned page

https://github.com/rathena/rathena/wiki/Custom_Items

[R> @afk command with pub]

Thats how ot works,

Jist dear for @sleep @afk site:rathena.org in google

[Crash mapserver when using @job/@jobchange without <id>]

Would be great if you can provide git hash of rathena, 

Also try running with with gdb so you can get core dump 

[Body Style for Trans Classes]

soemthing like this?

 

[Close confine on back slide, relocate, and jump]

Wrong section. Moved to "Source Support".

[Client Setup]

5,6 - what errors popping up?

[Client Setup]

Download nemo from here

Checkout client releases section and download the client you want and diff it using nemo,

 

[Ragnarok Mobile]

Wrong section. Moved to "Third-Party Support".

[20151104a client installation || i got some errors]

Wrong section. Moved to "Client-side Support"

[Error - status.cpp set_sc]

Wrong section. Moved to "Source Support".

[Set always day]

https://github.com/rathena/rathena/blob/master/conf/battle/misc.conf

// Choose if server begin with night (yes) or day (no)
night_at_start: yes

// Define duration in msec of the day (default: 7200000 = 2 hours)
// Set to 0 to disable day cycle (but not @day GM command).
// Except 0, minimum is 60000 (1 minute)
day_duration: 7200000

// Define duration in msec of the night (default: 1800000 = 30 min)
// Set to 0 to disable night cycle (but not @night GM command).
// Except 0, minimum is 60000 (1 minute)
night_duration: 3600000

[an issue im encountering]

Check you database names configured in inter_athena