diff --git a/README.md b/README.md
index 8c3b075..f5537dd 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,7 @@ Auto install Squid 3 proxy on following linux OS.
 * Ubuntu 14.04, 16.04, 18.04, 20.04, 22.04
 * Debian 8, 9, 10, 11, 12
 * CentOS 7, 8
+* CentOS Steam 8, 9
 * AlmaLinux 8, 9
 
 
diff --git a/conf/debian12.conf b/conf/debian12.conf
new file mode 100644
index 0000000..f458d7c
--- /dev/null
+++ b/conf/debian12.conf
@@ -0,0 +1,40 @@
+acl SSL_ports port 1-65535
+acl Safe_ports port 1-65535
+
+auth_param basic program /usr/lib/squid/basic_ncsa_auth /etc/squid/passwd
+auth_param basic children 5
+auth_param basic realm ServerOK Proxy Server
+auth_param basic credentialsttl 2 hours
+acl password proxy_auth REQUIRED
+http_access allow password
+
+forwarded_for off
+request_header_access Allow allow all
+request_header_access Authorization allow all
+request_header_access WWW-Authenticate allow all
+request_header_access Proxy-Authorization allow all
+request_header_access Proxy-Authenticate allow all
+request_header_access Cache-Control allow all
+request_header_access Content-Encoding allow all
+request_header_access Content-Length allow all
+request_header_access Content-Type allow all
+request_header_access Date allow all
+request_header_access Expires allow all
+request_header_access Host allow all
+request_header_access If-Modified-Since allow all
+request_header_access Last-Modified allow all
+request_header_access Location allow all
+request_header_access Pragma allow all
+request_header_access Accept allow all
+request_header_access Accept-Charset allow all
+request_header_access Accept-Encoding allow all
+request_header_access Accept-Language allow all
+request_header_access Content-Language allow all
+request_header_access Mime-Version allow all
+request_header_access Retry-After allow all
+request_header_access Title allow all
+request_header_access Connection allow all
+request_header_access Proxy-Connection allow all
+request_header_access User-Agent allow all
+request_header_access Cookie allow all
+request_header_access All deny all
diff --git a/squid3-install.sh b/squid3-install.sh
index d5062fa..8738bdb 100644
--- a/squid3-install.sh
+++ b/squid3-install.sh
@@ -43,8 +43,8 @@ if [ $SOK_OS == "ERROR" ]; then
 fi
 
 if [ $SOK_OS == "ubuntu2204" ]; then
-    /usr/bin/apt update
-    /usr/bin/apt -y install apache2-utils squid
+    /usr/bin/apt update > /dev/null 2>&1
+    /usr/bin/apt -y install apache2-utils squid > /dev/null 2>&1
     touch /etc/squid/passwd
     mv /etc/squid/squid.conf /etc/squid/squid.conf.bak
     /usr/bin/touch /etc/squid/blacklist.acl
@@ -56,8 +56,8 @@ if [ $SOK_OS == "ubuntu2204" ]; then
     service squid restart
     systemctl enable squid
 elif [ $SOK_OS == "ubuntu2004" ]; then
-    /usr/bin/apt update
-    /usr/bin/apt -y install apache2-utils squid
+    /usr/bin/apt update > /dev/null 2>&1
+    /usr/bin/apt -y install apache2-utils squid > /dev/null 2>&1
     touch /etc/squid/passwd
     /bin/rm -f /etc/squid/squid.conf
     /usr/bin/touch /etc/squid/blacklist.acl
@@ -69,8 +69,8 @@ elif [ $SOK_OS == "ubuntu2004" ]; then
     service squid restart
     systemctl enable squid
 elif [ $SOK_OS == "ubuntu1804" ]; then
-    /usr/bin/apt update
-    /usr/bin/apt -y install apache2-utils squid3
+    /usr/bin/apt update > /dev/null 2>&1
+    /usr/bin/apt -y install apache2-utils squid3 > /dev/null 2>&1
     touch /etc/squid/passwd
     /bin/rm -f /etc/squid/squid.conf
     /usr/bin/touch /etc/squid/blacklist.acl
@@ -80,8 +80,8 @@ elif [ $SOK_OS == "ubuntu1804" ]; then
     service squid restart
     systemctl enable squid
 elif [ $SOK_OS == "ubuntu1604" ]; then
-    /usr/bin/apt update
-    /usr/bin/apt -y install apache2-utils squid3
+    /usr/bin/apt update > /dev/null 2>&1
+    /usr/bin/apt -y install apache2-utils squid3 > /dev/null 2>&1
     touch /etc/squid/passwd
     /bin/rm -f /etc/squid/squid.conf
     /usr/bin/touch /etc/squid/blacklist.acl
@@ -91,8 +91,8 @@ elif [ $SOK_OS == "ubuntu1604" ]; then
     service squid restart
     update-rc.d squid defaults
 elif [ $SOK_OS == "ubuntu1404" ]; then
-    /usr/bin/apt update
-    /usr/bin/apt -y install apache2-utils squid3
+    /usr/bin/apt update > /dev/null 2>&1
+    /usr/bin/apt -y install apache2-utils squid3 > /dev/null 2>&1
     touch /etc/squid3/passwd
     /bin/rm -f /etc/squid3/squid.conf
     /usr/bin/touch /etc/squid3/blacklist.acl
@@ -106,8 +106,8 @@ elif [ $SOK_OS == "ubuntu1404" ]; then
 elif [ $SOK_OS == "debian8" ]; then
     # OS = Debian 8
     /bin/rm -rf /etc/squid
-    /usr/bin/apt update
-    /usr/bin/apt -y install apache2-utils squid3
+    /usr/bin/apt update > /dev/null 2>&1
+    /usr/bin/apt -y install apache2-utils squid3 > /dev/null 2>&1
     touch /etc/squid3/passwd
     /bin/rm -f /etc/squid3/squid.conf
     /usr/bin/touch /etc/squid3/blacklist.acl
@@ -120,8 +120,8 @@ elif [ $SOK_OS == "debian8" ]; then
 elif [ $SOK_OS == "debian9" ]; then
     # OS = Debian 9
     /bin/rm -rf /etc/squid
-    /usr/bin/apt update
-    /usr/bin/apt -y install apache2-utils squid
+    /usr/bin/apt update > /dev/null 2>&1
+    /usr/bin/apt -y install apache2-utils squid > /dev/null 2>&1
     touch /etc/squid/passwd
     /bin/rm -f /etc/squid/squid.conf
     /usr/bin/touch /etc/squid/blacklist.acl
@@ -133,8 +133,8 @@ elif [ $SOK_OS == "debian9" ]; then
 elif [ $SOK_OS == "debian10" ]; then
     # OS = Debian 10
     /bin/rm -rf /etc/squid
-    /usr/bin/apt update
-    /usr/bin/apt -y install apache2-utils squid
+    /usr/bin/apt update > /dev/null 2>&1
+    /usr/bin/apt -y install apache2-utils squid > /dev/null 2>&1
     touch /etc/squid/passwd
     /bin/rm -f /etc/squid/squid.conf
     /usr/bin/touch /etc/squid/blacklist.acl
@@ -146,8 +146,8 @@ elif [ $SOK_OS == "debian10" ]; then
 elif [ $SOK_OS == "debian11" ]; then
     # OS = Debian GNU/Linux 11 (bullseye)
     /bin/rm -rf /etc/squid
-    /usr/bin/apt update
-    /usr/bin/apt -y install apache2-utils squid
+    /usr/bin/apt update > /dev/null 2>&1
+    /usr/bin/apt -y install apache2-utils squid > /dev/null 2>&1
     touch /etc/squid/passwd
     /bin/rm -f /etc/squid/squid.conf
     /usr/bin/touch /etc/squid/blacklist.acl
@@ -161,12 +161,10 @@ elif [ $SOK_OS == "debian11" ]; then
 elif [ $SOK_OS == "debian12" ]; then
     # OS = Debian GNU/Linux 12 (bookworm)
     /bin/rm -rf /etc/squid
-    /usr/bin/apt update
-    /usr/bin/apt -y install apache2-utils squid
+    /usr/bin/apt update > /dev/null 2>&1
+    /usr/bin/apt -y install apache2-utils squid  > /dev/null 2>&1
     touch /etc/squid/passwd
-    mv /etc/squid/squid.conf /etc/squid/squid.conf.default
-    /usr/bin/touch /etc/squid/blacklist.acl
-    /usr/bin/wget -q --no-check-certificate -O /etc/squid/squid.conf https://raw.githubusercontent.com/serverok/squid-proxy-installer/master/squid.conf
+    /usr/bin/wget -q --no-check-certificate -O /etc/squid/conf.d/serverok.conf https://raw.githubusercontent.com/serverok/squid-proxy-installer/master/conf/debian12.conf
     if [ -f /sbin/iptables ]; then
         /sbin/iptables -I INPUT -p tcp --dport 3128 -j ACCEPT
         /sbin/iptables-save