diff --git a/README.md b/README.md
index 490d755..9b1346e 100644
--- a/README.md
+++ b/README.md
@@ -1,10 +1,10 @@
-# ja-netfilter v1.1.5
+# ja-netfilter v1.1.6
 
 ### A javaagent lib for network filter
 
 ## Usage
 
-* download from the [releases page](https://github.com/pengzhile/ja-netfilter/releases)
+* download from the [releases page](https://github.com/ja-netfilter/ja-netfilter/releases)
 * add `-javaagent:/absolute/path/to/ja-netfilter.jar` argument (**Change to your actual path**)
     * add as an argument of the `java` command. eg: `java -javaagent:/absolute/path/to/ja-netfilter.jar -jar executable_jar_file.jar`
     * some apps support the `JVM Options file`, you can add as a line of the `JVM Options file`.
@@ -36,11 +36,15 @@ EQUAL,https://someurl
 [DNS]
 EQUAL,somedomain
 
-# EQUAL     Use `equals` to compare
-# KEYWORD   Use `contains` to compare
-# PREFIX    Use `startsWith` to compare
-# SUFFIX    Use `endsWith` to compare
-# REGEXP    Use regular expressions to match
+# EQUAL       Use `equals` to compare
+# EQUAL_IC    Use `equals` to compare, ignore case
+# KEYWORD     Use `contains` to compare
+# KEYWORD_IC  Use `contains` to compare, ignore case
+# PREFIX      Use `startsWith` to compare
+# PREFIX_IC   Use `startsWith` to compare, ignore case
+# SUFFIX      Use `endsWith` to compare
+# SUFFIX_IC   Use `endsWith` to compare, ignore case
+# REGEXP      Use regular expressions to match
 ```
 
 ## Debug info
@@ -52,7 +56,7 @@ EQUAL,somedomain
 ## Plugin system
 
 * for developer:
-    * view the [scaffold project](https://github.com/pengzhile/ja-netfilter-sample-plugin) written for the plugin system
+    * view the [scaffold project](https://github.com/ja-netfilter/ja-netfilter-sample-plugin) written for the plugin system
     * compile your plugin and publish it
     * just use your imagination~
 
diff --git a/pom.xml b/pom.xml
index 4c0279a..2f76aa0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>io.zhile.research</groupId>
     <artifactId>ja-netfilter</artifactId>
-    <version>1.1.5</version>
+    <version>1.1.6</version>
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
@@ -47,6 +47,7 @@
                             <addClasspath>true</addClasspath>
                         </manifest>
                         <manifestEntries>
+                            <Built-By>neo</Built-By>
                             <Premain-Class>io.zhile.research.ja.netfilter.Launcher</Premain-Class>
                             <Main-Class>io.zhile.research.ja.netfilter.Launcher</Main-Class>
                             <Can-Redefine-Classes>true</Can-Redefine-Classes>
diff --git a/src/main/java/io/zhile/research/ja/netfilter/Launcher.java b/src/main/java/io/zhile/research/ja/netfilter/Launcher.java
index f5d69de..f2f1edd 100644
--- a/src/main/java/io/zhile/research/ja/netfilter/Launcher.java
+++ b/src/main/java/io/zhile/research/ja/netfilter/Launcher.java
@@ -9,7 +9,7 @@ import java.net.URL;
 import java.util.jar.JarFile;
 
 public class Launcher {
-    private static final String VERSION = "v1.1.5";
+    private static final String VERSION = "v1.1.6";
 
     public static void main(String[] args) {
         printUsage();
diff --git a/src/main/java/io/zhile/research/ja/netfilter/commons/ConfigParser.java b/src/main/java/io/zhile/research/ja/netfilter/commons/ConfigParser.java
index fdc6ff3..13a1b32 100644
--- a/src/main/java/io/zhile/research/ja/netfilter/commons/ConfigParser.java
+++ b/src/main/java/io/zhile/research/ja/netfilter/commons/ConfigParser.java
@@ -44,11 +44,7 @@ public class ConfigParser {
                             throw new Exception("Empty section name! Line: " + lineNumber);
                         }
 
-                        lastSection = section;
-                        if (null == map.get(lastSection)) {
-                            // do NOT override existing sections
-                            map.put(lastSection, new ArrayList<>());
-                        }
+                        map.computeIfAbsent(lastSection = section, k -> new ArrayList<>());
                         break;
                     case '#':
                     case ';':
diff --git a/src/main/java/io/zhile/research/ja/netfilter/enums/RuleType.java b/src/main/java/io/zhile/research/ja/netfilter/enums/RuleType.java
index 4e9d325..a46b54b 100644
--- a/src/main/java/io/zhile/research/ja/netfilter/enums/RuleType.java
+++ b/src/main/java/io/zhile/research/ja/netfilter/enums/RuleType.java
@@ -4,10 +4,14 @@ import io.zhile.research.ja.netfilter.rulers.*;
 
 public enum RuleType {
     PREFIX(new PrefixRuler()),
+    PREFIX_IC(new PrefixICRuler()),
     SUFFIX(new SuffixRuler()),
+    SUFFIX_IC(new SuffixICRuler()),
     KEYWORD(new KeywordRuler()),
-    REGEXP(new RegExpRuler()),
-    EQUAL(new EqualRuler());
+    KEYWORD_IC(new KeywordICRuler()),
+    EQUAL(new EqualRuler()),
+    EQUAL_IC(new EqualICRuler()),
+    REGEXP(new RegExpRuler());
 
     private final Ruler ruler;
 
diff --git a/src/main/java/io/zhile/research/ja/netfilter/rulers/EqualICRuler.java b/src/main/java/io/zhile/research/ja/netfilter/rulers/EqualICRuler.java
new file mode 100644
index 0000000..ef12785
--- /dev/null
+++ b/src/main/java/io/zhile/research/ja/netfilter/rulers/EqualICRuler.java
@@ -0,0 +1,8 @@
+package io.zhile.research.ja.netfilter.rulers;
+
+public class EqualICRuler implements Ruler {
+    @Override
+    public boolean test(String rule, String content) {
+        return content.equalsIgnoreCase(rule);
+    }
+}
diff --git a/src/main/java/io/zhile/research/ja/netfilter/rulers/KeywordICRuler.java b/src/main/java/io/zhile/research/ja/netfilter/rulers/KeywordICRuler.java
new file mode 100644
index 0000000..1529b4c
--- /dev/null
+++ b/src/main/java/io/zhile/research/ja/netfilter/rulers/KeywordICRuler.java
@@ -0,0 +1,8 @@
+package io.zhile.research.ja.netfilter.rulers;
+
+public class KeywordICRuler implements Ruler {
+    @Override
+    public boolean test(String rule, String content) {
+        return content.toLowerCase().contains(rule.toLowerCase());
+    }
+}
diff --git a/src/main/java/io/zhile/research/ja/netfilter/rulers/PrefixICRuler.java b/src/main/java/io/zhile/research/ja/netfilter/rulers/PrefixICRuler.java
new file mode 100644
index 0000000..fb28235
--- /dev/null
+++ b/src/main/java/io/zhile/research/ja/netfilter/rulers/PrefixICRuler.java
@@ -0,0 +1,8 @@
+package io.zhile.research.ja.netfilter.rulers;
+
+public class PrefixICRuler implements Ruler {
+    @Override
+    public boolean test(String rule, String content) {
+        return content.toLowerCase().startsWith(rule.toLowerCase());
+    }
+}
diff --git a/src/main/java/io/zhile/research/ja/netfilter/rulers/SuffixICRuler.java b/src/main/java/io/zhile/research/ja/netfilter/rulers/SuffixICRuler.java
new file mode 100644
index 0000000..ce3deb0
--- /dev/null
+++ b/src/main/java/io/zhile/research/ja/netfilter/rulers/SuffixICRuler.java
@@ -0,0 +1,8 @@
+package io.zhile.research.ja.netfilter.rulers;
+
+public class SuffixICRuler implements Ruler {
+    @Override
+    public boolean test(String rule, String content) {
+        return content.toLowerCase().endsWith(rule.toLowerCase());
+    }
+}