diff --git a/common/mhfcid/mhfcid.go b/common/mhfcid/mhfcid.go
new file mode 100644
index 000000000..8b951fd4e
--- /dev/null
+++ b/common/mhfcid/mhfcid.go
@@ -0,0 +1,54 @@
+package mhfcid
+
+import (
+	"math"
+)
+
+// ConvertCID converts a MHF Character ID String to integer
+//
+// Banned characters: 0, I, O, S
+func ConvertCID(ID string) (r uint32) {
+	if len(ID) != 6 {
+		return
+	}
+
+	m := map[rune]uint32{
+		'1': 0,
+		'2': 1,
+		'3': 2,
+		'4': 3,
+		'5': 4,
+		'6': 5,
+		'7': 6,
+		'8': 7,
+		'9': 8,
+		'A': 9,
+		'B': 10,
+		'C': 11,
+		'D': 12,
+		'E': 13,
+		'F': 14,
+		'G': 15,
+		'H': 16,
+		'J': 17,
+		'K': 18,
+		'L': 19,
+		'M': 20,
+		'N': 21,
+		'P': 22,
+		'Q': 23,
+		'R': 24,
+		'T': 25,
+		'U': 26,
+		'V': 27,
+		'W': 28,
+		'X': 29,
+		'Y': 30,
+		'Z': 31,
+	}
+
+	for i, c := range ID {
+		r += m[c] * uint32(math.Pow(32, float64(i)))
+	}
+	return
+}
diff --git a/config.json b/config.json
index 15f51d9df..c0247b9d3 100644
--- a/config.json
+++ b/config.json
@@ -136,6 +136,11 @@
       "Enabled": true,
       "Description": "Generate a token to link your Discord account",
       "Prefix": "discord"
+    }, {
+      "Name": "Ban",
+      "Enabled": false,
+      "Description": "Ban/Temp Ban a user",
+      "Prefix": "ban"
     }
   ],
   "Courses": [
diff --git a/server/channelserver/handlers_cast_binary.go b/server/channelserver/handlers_cast_binary.go
index 016e1f70c..771a7be39 100644
--- a/server/channelserver/handlers_cast_binary.go
+++ b/server/channelserver/handlers_cast_binary.go
@@ -4,6 +4,7 @@ import (
 	"crypto/rand"
 	"encoding/hex"
 	"erupe-ce/common/byteframe"
+	"erupe-ce/common/mhfcid"
 	"erupe-ce/common/mhfcourse"
 	"erupe-ce/common/token"
 	"erupe-ce/config"
@@ -87,6 +88,62 @@ func sendServerChatMessage(s *Session, message string) {
 func parseChatCommand(s *Session, command string) {
 	args := strings.Split(command[len(s.server.erupeConfig.CommandPrefix):], " ")
 	switch args[0] {
+	case commands["Ban"].Prefix:
+		if s.isOp() {
+			if len(args) > 1 {
+				var expiry time.Time
+				if len(args) > 2 {
+					var length int
+					var unit string
+					n, err := fmt.Sscanf(args[2], `%d%s`, &length, &unit)
+					if err == nil && n == 2 {
+						switch unit {
+						case "s", "second", "seconds":
+							expiry = time.Now().Add(time.Duration(length) * time.Second)
+						case "m", "mi", "minute", "minutes":
+							expiry = time.Now().Add(time.Duration(length) * time.Minute)
+						case "h", "hour", "hours":
+							expiry = time.Now().Add(time.Duration(length) * time.Hour)
+						case "d", "day", "days":
+							expiry = time.Now().Add(time.Duration(length) * time.Hour * 24)
+						case "mo", "month", "months":
+							expiry = time.Now().Add(time.Duration(length) * time.Hour * 24 * 30)
+						case "y", "year", "years":
+							expiry = time.Now().Add(time.Duration(length) * time.Hour * 24 * 365)
+						}
+					} else {
+						sendServerChatMessage(s, s.server.i18n.commands.ban.error)
+						return
+					}
+				}
+				cid := mhfcid.ConvertCID(args[1])
+				if cid > 0 {
+					var uid uint32
+					var uname string
+					err := s.server.db.QueryRow(`SELECT id, username FROM users u WHERE u.id=(SELECT c.user_id FROM characters c WHERE c.id=$1)`, cid).Scan(&uid, &uname)
+					if err == nil {
+						if expiry.IsZero() {
+							s.server.db.Exec(`INSERT INTO bans VALUES ($1)
+                 				ON CONFLICT (user_id) DO UPDATE SET expires=NULL`, uid)
+							sendServerChatMessage(s, fmt.Sprintf(s.server.i18n.commands.ban.success, uname))
+						} else {
+							s.server.db.Exec(`INSERT INTO bans VALUES ($1, $2)
+                 				ON CONFLICT (user_id) DO UPDATE SET expires=$2`, uid, expiry)
+							sendServerChatMessage(s, fmt.Sprintf(s.server.i18n.commands.ban.success, uname)+fmt.Sprintf(s.server.i18n.commands.ban.length, expiry.Format(time.DateTime)))
+						}
+						s.server.DisconnectUser(uid)
+					} else {
+						sendServerChatMessage(s, s.server.i18n.commands.ban.noUser)
+					}
+				} else {
+					sendServerChatMessage(s, s.server.i18n.commands.ban.invalid)
+				}
+			} else {
+				sendServerChatMessage(s, s.server.i18n.commands.ban.error)
+			}
+		} else {
+			sendServerChatMessage(s, s.server.i18n.commands.noOp)
+		}
 	case commands["PSN"].Prefix:
 		if commands["PSN"].Enabled || s.isOp() {
 			if len(args) > 1 {
diff --git a/server/channelserver/sys_language.go b/server/channelserver/sys_language.go
index 5feb76444..eae96dc85 100644
--- a/server/channelserver/sys_language.go
+++ b/server/channelserver/sys_language.go
@@ -6,6 +6,7 @@ type i18n struct {
 		reset string
 	}
 	commands struct {
+		noOp     string
 		disabled string
 		reload   string
 		kqf      struct {
@@ -38,6 +39,13 @@ type i18n struct {
 		discord struct {
 			success string
 		}
+		ban struct {
+			success string
+			noUser  string
+			invalid string
+			error   string
+			length  string
+		}
 		ravi struct {
 			noCommand string
 			start     struct {
@@ -95,6 +103,7 @@ func getLangStrings(s *Server) i18n {
 		i.language = "日本語"
 		i.cafe.reset = "%d/%dにリセット"
 
+		i.commands.noOp = "You don't have permission to use this command"
 		i.commands.disabled = "%sのコマンドは無効です"
 		i.commands.reload = "リロードします"
 		i.commands.kqf.get = "現在のキークエストフラグ：%x"
@@ -115,6 +124,12 @@ func getLangStrings(s *Server) i18n {
 
 		i.commands.discord.success = "あなたのDiscordトークン：%s"
 
+		i.commands.ban.noUser = "Could not find user"
+		i.commands.ban.success = "Successfully banned %s"
+		i.commands.ban.invalid = "Invalid Character ID"
+		i.commands.ban.error = "Error in command. Format: %s <id> [length]"
+		i.commands.ban.length = " until %s"
+
 		i.commands.ravi.noCommand = "ラヴィコマンドが指定されていません"
 		i.commands.ravi.start.success = "大討伐を開始します"
 		i.commands.ravi.start.error = "大討伐は既に開催されています"
@@ -150,6 +165,7 @@ func getLangStrings(s *Server) i18n {
 		i.language = "English"
 		i.cafe.reset = "Resets on %d/%d"
 
+		i.commands.noOp = "You don't have permission to use this command"
 		i.commands.disabled = "%s command is disabled"
 		i.commands.reload = "Reloading players..."
 		i.commands.kqf.get = "KQF: %x"
@@ -170,6 +186,12 @@ func getLangStrings(s *Server) i18n {
 
 		i.commands.discord.success = "Your Discord token: %s"
 
+		i.commands.ban.noUser = "Could not find user"
+		i.commands.ban.success = "Successfully banned %s"
+		i.commands.ban.invalid = "Invalid Character ID"
+		i.commands.ban.error = "Error in command. Format: %s <id> [length]"
+		i.commands.ban.length = " until %s"
+
 		i.commands.ravi.noCommand = "No Raviente command specified!"
 		i.commands.ravi.start.success = "The Great Slaying will begin in a moment"
 		i.commands.ravi.start.error = "The Great Slaying has already begun!"