diff --git a/PAM/ssh/include/rublon/error.hpp b/PAM/ssh/include/rublon/error.hpp
index dd85c40..bc3474f 100755
--- a/PAM/ssh/include/rublon/error.hpp
+++ b/PAM/ssh/include/rublon/error.hpp
@@ -224,6 +224,41 @@ class RublonCheckApplicationException {
     ErrorClass errorClass;
 };
 
+
+class RublonRuntimeException {
+  public:
+    enum ErrorClass {
+        CantCreateSocket,
+        ConnectionFailed,
+        CantGetSocketName,
+        CantReadLocalIP
+    };
+
+    constexpr static auto errorClassPrettyName = make_array< std::string_view >( //
+      "CantCreateSocket",
+      "ConnectionFailed",
+      "CantGetSocketName",
+      "CantReadLocalIP");
+    constexpr static auto prettyName           = "Rublon Runtime Exception";
+    
+    RublonRuntimeException(ErrorClass e = CantReadLocalIP) : errorClass{e} {}
+    
+    constexpr const char * what() const {
+        return errorClassPrettyName[static_cast< int >(errorClass)].data();
+    }
+    
+    static std::optional< RublonRuntimeException > fromString(std::string_view name) {
+        for(std::size_t i{}; i < errorClassPrettyName.size(); i++) {
+            if(errorClassPrettyName.at(i) == name) {
+                return std::make_optional(RublonRuntimeException{static_cast< ErrorClass >(i)});
+            }
+        }
+        return std::nullopt;
+    }
+    
+    ErrorClass errorClass;
+};
+
 class Error {
     using Error_t = std::variant< ConfigurationError,
       CoreHandlerError,
@@ -231,7 +266,8 @@ class Error {
       WerificationError,
       MethodError,
       RublonAuthenticationInterrupt,
-      RublonCheckApplicationException >;
+      RublonCheckApplicationException,
+      RublonRuntimeException >;
     Error_t _error;
 
   public:
@@ -242,7 +278,8 @@ class Error {
         k_WerificationError,
         k_MethodError,
         k_RublonAuthenticationInterrupt,
-        k_RublonCheckApplication
+        k_RublonCheckApplication,
+        k_RublonRuntimeException
     };
 
     Error() = default;
@@ -254,6 +291,7 @@ class Error {
     Error(WerificationError error) : _error{error} {}
     Error(RublonAuthenticationInterrupt error) : _error{error} {}
     Error(RublonCheckApplicationException error) : _error{error} {}
+    Error(RublonRuntimeException error) : _error{error} {}
 
     Error(const Error &) = default;
     Error(Error &&)      = default;
diff --git a/PAM/ssh/include/rublon/rublon.hpp b/PAM/ssh/include/rublon/rublon.hpp
index ba7b748..bc36954 100755
--- a/PAM/ssh/include/rublon/rublon.hpp
+++ b/PAM/ssh/include/rublon/rublon.hpp
@@ -12,7 +12,7 @@ namespace rublon {
 
 class RublonFactory {
   public:
-    tl::expected< void, Error > initializeSession(Session & session, int flags, int argc, const char ** argv) {
+    tl::expected< void, Error > initializeSession(Session & session, [[maybe_unused]]int flags, int argc, const char ** argv) {
         log(LogLevel::Debug, "Configuration read start");
         memory::MonotonicStack_2k_Resource memory_resource;
         ConfigurationReader reader{&memory_resource, "/etc/rublon.config", argc, argv};
diff --git a/service/helpers/postinst b/service/helpers/postinst
index ada7656..df1a9b4 100644
--- a/service/helpers/postinst
+++ b/service/helpers/postinst
@@ -9,14 +9,14 @@ if [ ! -f $RUBLON_CONFIG ]
 then
     cp -a /usr/share/rublon/rublon.config.defaults $RUBLON_CONFIG
     chown root:root $RUBLON_CONFIG
-    chmod 640 $RUBLON_CONFIG
+    chmod 644 $RUBLON_CONFIG
 fi
 
 if [ ! -f $RUBLON_SSH_CONFIG ]
 then
     cp -a /usr/share/rublon/01-rublon-ssh.conf.default $RUBLON_SSH_CONFIG
     chown root:root $RUBLON_SSH_CONFIG
-    chmod 640 $RUBLON_SSH_CONFIG
+    chmod 644 $RUBLON_SSH_CONFIG
 fi
 
 if [ -f /etc/os-release ]