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Hello there, Some of you might know this already and maybe have read the original guide for it. But for those who doesn't know it yet, see below. Note: I’m sharing the steps on how to do it using CentOS7 for the proxy server/VM while the main server/VM will be anything you like as long as rAthena supports it. Before everything else, I would like you to know that this guide will only work on CentOS7 and this doesn’t guarantee that it will provide low latency to your players since its main function is to HIDE the IP of your MAIN VPS to avoid being bombarded with unwanted traffic. In the event, you received lots of traffic on your proxy, you can just reject it on your main VPS via firewall rules/iptables. Requirements Spare VPS to configure the proxy Patch your client using updated "Enable Proxy Support" patch provided by 4144's NEMO & Functor DO NOT patch "Skip Service Select" since you need it to choose from the multiple connections. Add multiple connection on your clientinfo.xml/sclientinfo.xml Configure subnet_athena.conf to prevent sending real IP in network packets from login and char servers. (Functor) (Optional) Enable "Cancel to Select Service" Patch VPS Configuration (IMPORTANT) Note: Again, make sure that your VPS is using CentOS7 since this was tested under the said OS and working 100% Follow the commands provided below. /* Port Forwarding CentOS 7 FirewallD */ // ======================================================================== // Please read the comments per line it is self-explanatory. // Important Parameters: // INSERT_ZONE = output of the get default zone // INSERT_IP = is the public IP of your main VPS or server // If you like the guide give it a thumbs up! // ======================================================================== // This command is to get the default zone being used by your VM. firewall-cmd --get-default-zone // This command is to check all rules applied to your VM by the current active zone. firewall-cmd --zone=INSERT_ZONE --list-all // Enabling Masquerade Status (IP Forwarding). // This is the important configuration else below won't work firewall-cmd --zone=INSERT_ZONE --add-masquerade --permanent // IP/Traffic forwarding // Make sure you have configured masquerade firewall-cmd --zone="INSERT_ZONE" --add-forward-port=port=6900:proto=tcp:toport=6900:toaddr=INSERT_IP --permanent firewall-cmd --zone="INSERT_ZONE" --add-forward-port=port=6121:proto=tcp:toport=6121:toaddr=INSERT_IP --permanent firewall-cmd --zone="INSERT_ZONE" --add-forward-port=port=5121:proto=tcp:toport=5121:toaddr=INSERT_IP --permanent // Add rules for ro-ports (assuming that you didn't change the port) firewall-cmd --zone=INSERT_ZONE --add-port=6900/tcp --permanent firewall-cmd --zone=INSERT_ZONE --add-port=6121/tcp --permanent firewall-cmd --zone=INSERT_ZONE --add-port=5121/tcp --permanent // Reload rules to take effect firewall-cmd --reload clientinfo.xml/sclientinfo.xml Configuration (IMPORTANT) The example below shows how to configure multiple connections/tunnel to your VPS. (P.S. I'm not quite sure how many connection is the limit that can be defined on the xml) <?xml version="1.0" encoding="euc-kr" ?> <clientinfo> <desc>Ragnarok Online Client Information</desc> <servicetype>america</servicetype> <servertype>primary</servertype> <connection> <display>^FF0000[ SE Asia ]^000000 - Connection Tunnel</display> <balloon>This server is dedicated to SEA Region to possibly reduce latency.</balloon> <address>INSERT_IP_HERE</address> <port>6900</port> <version>46</version> <langtype>1</langtype> <registrationweb>https://rathena.org/board</registrationweb> <loading> <image>loading00.jpg</image> <image>loading01.jpg</image> </loading> <yellow> <admin>2000000</admin> </yellow> </connection> <connection> <display>^FF0000[ US Central ]^000000 - Connection Tunnel</display> <balloon>This server is dedicated to US Central Region to possibly reduce latency.</balloon> <address>INSERT_IP_HERE</address> <port>6900</port> <version>46</version> <langtype>1</langtype> <registrationweb>https://rathena.org/board</registrationweb> <loading> <image>loading00.jpg</image> <image>loading01.jpg</image> </loading> <yellow> <admin>2000000</admin> </yellow> </connection> <connection> <display>^FF0000[ US West ]^000000 - Connection Tunnel</display> <balloon>This server is dedicated to US West Region to possibly reduce latency.</balloon> <address>INSERT_IP_HERE</address> <port>6900</port> <version>46</version> <langtype>1</langtype> <registrationweb>https://rathena.org/board</registrationweb> <loading> <image>loading00.jpg</image> <image>loading01.jpg</image> </loading> <yellow> <admin>2000000</admin> </yellow> </connection> </clientinfo> subnet_athena.conf (IMPORTANT) Change the default value (shown below) subnet: 255.0.0.0:127.0.0.1:127.0.0.1 TO subnet: 0.0.0.0:127.0.0.1:127.0.0.1 As per Functor, "If you will just apply the patch of EXE - game client will not use these IPs from network packets. But players will be able to find real IP by using any network sniffer.". That's it. If you have question, drop by a comment. ROK On! Original Links: Ragnarok Proxy Setup (Hide your VPS IP) Other: Setting up 2020 rAthena Server | Setting up 2020 Client - rAthena based

id is unit game id not mob id, the check is correct, if target is monster, then convert it to mob_data then check the target mob id if that monster is emperium. if(target->type == BL_MOB) { struct mob_data *md = BL_CAST(BL_MOB, target); if (md->mob_id == MOBID_EMPERIUM) hp = 1; }

Spent a good hour figuring out how vferrari did this, and while I'm not very good at tutorials, I'd be happy to upload my results. Please see attached files for Meteor Storm (I don't have much experience with renewal files so I didn't bother with Comet). While my attempt was extremely accurate with the grid that would be hit by MS, the downside of this is that when the screen is rotated, the effect remains the same and thus becomes inaccurate in predicting which cells would be hit by MS. This is the reason why I release these files to you now, instead of keeping it for myself. Also, I am not great with recording or making GIFs, so please feel free to test them out yourself. Please download ALL the files. 0lordbl.bmp meteor1.str meteor2.str meteor3.str meteor4.str