CheckNamePattern

### Eclipse Workspace Patch 1.0
#P L2J_Mobius_C6_Interlude
diff --git .gitignore .gitignore
new file mode 100644
index 0000000..ae3c172
--- /dev/null
+++ .gitignore
@@ -0,0 +1 @@
+/bin/
diff --git dist/game/config/protected/Other.ini dist/game/config/protected/Other.ini
index e4e8bbe..462b1d8 100644
--- dist/game/config/protected/Other.ini
+++ dist/game/config/protected/Other.ini
@@ -11,6 +11,11 @@
 # IMPORTANT: Put True for server security.
 CheckNameOnEnter = True

+# Check the name pattern of the GM character
+# IMPORTANT: Put True for server security.
+CheckNamePatternOnEnter = True
+NamePatternToCheck =^(admin)$
+
 # On / off protection from re-enchant
 # The GMs do not apply
 # If a player log with an item Over enchanted he will be banned.
diff --git java/org/l2jmobius/Config.java java/org/l2jmobius/Config.java
index a8dbf16..60bb716 100644
--- java/org/l2jmobius/Config.java
+++ java/org/l2jmobius/Config.java
@@ -905,6 +905,8 @@

    public static boolean CHECK_SKILLS_ON_ENTER;
    public static boolean CHECK_NAME_ON_LOGIN;
+   public static boolean CHECK_NAME_PATTERN_ON_ENTER;
+   public static String NAME_PATTERN_TO_CHECK;
    public static boolean L2WALKER_PROTECTION;
    public static boolean PROTECTED_ENCHANT;
    public static boolean ONLY_GM_ITEMS_FREE;
@@ -2460,6 +2462,8 @@
        final PropertiesParser protectedOtherConfig = new PropertiesParser(PROTECT_OTHER_CONFIG_FILE);
        CHECK_NAME_ON_LOGIN = protectedOtherConfig.getBoolean("CheckNameOnEnter", true);
        CHECK_SKILLS_ON_ENTER = protectedOtherConfig.getBoolean("CheckSkillsOnEnter", true);
+       CHECK_NAME_PATTERN_ON_ENTER = protectedOtherConfig.getBoolean("CheckNamePatternOnEnter", true);
+       NAME_PATTERN_TO_CHECK = protectedOtherConfig.getString("NamePatternToCheck", "^(admin)$");
        L2WALKER_PROTECTION = protectedOtherConfig.getBoolean("L2WalkerProtection", false);
        PROTECTED_ENCHANT = protectedOtherConfig.getBoolean("ProtectorEnchant", false);
        ONLY_GM_TELEPORT_FREE = protectedOtherConfig.getBoolean("OnlyGMTeleportFree", false);
diff --git java/org/l2jmobius/gameserver/network/clientpackets/EnterWorld.java java/org/l2jmobius/gameserver/network/clientpackets/EnterWorld.java
index 6827e46..054f3f4 100644
--- java/org/l2jmobius/gameserver/network/clientpackets/EnterWorld.java
+++ java/org/l2jmobius/gameserver/network/clientpackets/EnterWorld.java
@@ -135,6 +135,20 @@
            return;
        }

+       // Check Admin name pattern, if doesn't match game will close.
+       if (player.isGM() && Config.CHECK_NAME_PATTERN_ON_ENTER)
+       {
+           Pattern pattern = Pattern.compile(Config.NAME_PATTERN_TO_CHECK, Pattern.CASE_INSENSITIVE);
+           Matcher matcher = pattern.matcher(player.getName());
+
+           if (!matcher.matches())
+           {
+               LOGGER.info("Admin name doesn't match");
+               client.closeNow();
+               return;
+           }
+       }
+
        // Set online status
        player.setOnlineStatus(true);