diff --git a/bal-server.env b/bal-server.env
index 6ac7cf0..c61bc70 100644
--- a/bal-server.env
+++ b/bal-server.env
@@ -1,11 +1,13 @@
 RUST_LOG=info
-BAL_SERVER_DB_FILE=/path/to/bal.db
+BAL_SERVER_DB_FILE=/home/bal/bal.db
 BAL_SERVER_BIND_ADDRESS=127.0.0.1
-BAL_SERVER_BITCOIN_ADDRESS=your mainnet address
-BAL_SERVER_BITCOIN_FEE=100000
-BAL_SERVER_REGTEST_ADDRESS=
-BAL_SERVER_REGTEST_FEE=100000
-BAL_SERVER_TESTNET_ADDRESS=
-BAL_SERVER_TESTNET_FEE=100000
-BAL_SERVER_SIGNET_ADDRESS=
-BAL_SERVER_SIGNET_FEE=100000
+BAL_SERVER_BIND_PORT=9137
+BAL_SERVER_BITCOIN_ADDRESS="your bitcoin to recive payments here"
+BAL_SERVER_BITCOIN_FIXED_FEE=50000
+
+#BAL_SERVER_REGTEST_ADDRESS=
+#BAL_SERVER_REGTEST_FEE=100000
+#BAL_SERVER_TESTNET_ADDRESS=
+#BAL_SERVER_TESTNET_FEE=100000
+#BAL_SERVER_SIGNET_ADDRESS=
+#BAL_SERVER_SIGNET_FEE=100000
diff --git a/bal-server.service b/bal-server.service
index baff88b..1c20c34 100644
--- a/bal-server.service
+++ b/bal-server.service
@@ -4,34 +4,46 @@ After=network.target
 
 [Service]
 
-EnvironmentFile=/etc/bal/bal-server.env
+# Service execution
+###################
+EnvironmentFile=/home/bal/bal-server.env
 
 ExecStart=/usr/local/bin/bal-server 
 
-StandardOutput=syslog
-StandardError=syslog
 SyslogIdentifier=bal-server
 
+# Process management
+####################
 Type=simple
 PIDFile=/run/bal-server/bal-server.pid
 Restart=always
 TimeoutSec=300
 RestartSec=30
 
+# Directory creation and permissions
+####################################
 User=bal
 UMask=0027
 
+# /run/bal-server
 RuntimeDirectory=bal-server
 RuntimeDirectoryMode=0710
 
-PrivateTmp=true
+# Hardening measures
+####################
 
+# Mount /usr, /boot/ and /etc read-only for the process.
 ProtectSystem=full
 
+# Disallow the process and all of its children to gain
+# new privileges through execve().
 NoNewPrivileges=true
 
+# Use a new /dev namespace only populated with API pseudo devices
+# such as /dev/null, /dev/zero and /dev/random.
 PrivateDevices=true
 
+# Deny the creation of writable and executable memory mappings.
 MemoryDenyWriteExecute=true
 
 [Install]
diff --git a/src/main.rs b/src/main.rs
index 25cc4ae..875b660 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -316,7 +316,7 @@ async fn echo_push(whole_body: &Bytes,
 } 
 fn create_database(db: Connection){
     info!("database sanity check");
-    let _ = db.execute("CREATE TABLE IF NOT EXISTS tbl_tx      (txid PRIMARY KEY, wtxid, ntxid, tx, locktime integer, network, network_fees, reqid, our_fees, our_address, status integer DEFAULT 0);");
+    let _ = db.execute("CREATE TABLE IF NOT EXISTS tbl_tx      (txid PRIMARY KEY, date_creation TIMESTAMP DEFAULT CURRENT_TIMESTAMP, date_update TIMESTAMP DEFAULT CURRENT_TIMESTAMP, wtxid, ntxid, tx, locktime integer, network, network_fees, reqid, our_fees, our_address, status integer DEFAULT 0);");
     let _ = db.execute("ALTER TABLE tbl_tx ADD COLUMN push_err TEXT");
     let _ = db.execute("CREATE TABLE IF NOT EXISTS tbl_input   (txid, in_txid,in_vout, spend_txidi);");
     let _ = db.execute("CREATE TABLE IF NOT EXISTS tbl_output  (txid, script_pubkey, address, amount);");