diff --git a/apps/dokploy/components/dashboard/mariadb/general/show-external-mariadb-credentials.tsx b/apps/dokploy/components/dashboard/mariadb/general/show-external-mariadb-credentials.tsx
index 8745db286..86fe71ed4 100644
--- a/apps/dokploy/components/dashboard/mariadb/general/show-external-mariadb-credentials.tsx
+++ b/apps/dokploy/components/dashboard/mariadb/general/show-external-mariadb-credentials.tsx
@@ -73,8 +73,8 @@ export const ShowExternalMariadbCredentials = ({ mariadbId }: Props) => {
 				toast.success("External Port updated");
 				await refetch();
 			})
-			.catch(() => {
-				toast.error("Error saving the external port");
+			.catch((error: Error) => {
+				toast.error(error?.message || "Error saving the external port");
 			});
 	};
 
diff --git a/apps/dokploy/components/dashboard/mongo/general/show-external-mongo-credentials.tsx b/apps/dokploy/components/dashboard/mongo/general/show-external-mongo-credentials.tsx
index d30061db5..acc74066f 100644
--- a/apps/dokploy/components/dashboard/mongo/general/show-external-mongo-credentials.tsx
+++ b/apps/dokploy/components/dashboard/mongo/general/show-external-mongo-credentials.tsx
@@ -73,8 +73,8 @@ export const ShowExternalMongoCredentials = ({ mongoId }: Props) => {
 				toast.success("External Port updated");
 				await refetch();
 			})
-			.catch(() => {
-				toast.error("Error saving the external port");
+			.catch((error: Error) => {
+				toast.error(error?.message || "Error saving the external port");
 			});
 	};
 
diff --git a/apps/dokploy/components/dashboard/mysql/general/show-external-mysql-credentials.tsx b/apps/dokploy/components/dashboard/mysql/general/show-external-mysql-credentials.tsx
index dfaa36f6b..6e6cbe018 100644
--- a/apps/dokploy/components/dashboard/mysql/general/show-external-mysql-credentials.tsx
+++ b/apps/dokploy/components/dashboard/mysql/general/show-external-mysql-credentials.tsx
@@ -73,8 +73,8 @@ export const ShowExternalMysqlCredentials = ({ mysqlId }: Props) => {
 				toast.success("External Port updated");
 				await refetch();
 			})
-			.catch(() => {
-				toast.error("Error saving the external port");
+			.catch((error: Error) => {
+				toast.error(error?.message || "Error saving the external port");
 			});
 	};
 
diff --git a/apps/dokploy/components/dashboard/postgres/general/show-external-postgres-credentials.tsx b/apps/dokploy/components/dashboard/postgres/general/show-external-postgres-credentials.tsx
index 46b3772a0..1d34c010a 100644
--- a/apps/dokploy/components/dashboard/postgres/general/show-external-postgres-credentials.tsx
+++ b/apps/dokploy/components/dashboard/postgres/general/show-external-postgres-credentials.tsx
@@ -75,8 +75,8 @@ export const ShowExternalPostgresCredentials = ({ postgresId }: Props) => {
 				toast.success("External Port updated");
 				await refetch();
 			})
-			.catch(() => {
-				toast.error("Error saving the external port");
+			.catch((error: Error) => {
+				toast.error(error?.message || "Error saving the external port");
 			});
 	};
 
diff --git a/apps/dokploy/components/dashboard/redis/general/show-external-redis-credentials.tsx b/apps/dokploy/components/dashboard/redis/general/show-external-redis-credentials.tsx
index 8edd92389..9511af628 100644
--- a/apps/dokploy/components/dashboard/redis/general/show-external-redis-credentials.tsx
+++ b/apps/dokploy/components/dashboard/redis/general/show-external-redis-credentials.tsx
@@ -74,8 +74,8 @@ export const ShowExternalRedisCredentials = ({ redisId }: Props) => {
 				toast.success("External Port updated");
 				await refetch();
 			})
-			.catch(() => {
-				toast.error("Error saving the external port");
+			.catch((error: Error) => {
+				toast.error(error?.message || "Error saving the external port");
 			});
 	};
 
diff --git a/apps/dokploy/server/api/routers/mariadb.ts b/apps/dokploy/server/api/routers/mariadb.ts
index 7d4bd2e50..1f58eec1b 100644
--- a/apps/dokploy/server/api/routers/mariadb.ts
+++ b/apps/dokploy/server/api/routers/mariadb.ts
@@ -1,5 +1,6 @@
 import {
 	addNewService,
+	checkPortInUse,
 	checkServiceAccess,
 	createMariadb,
 	createMount,
@@ -162,9 +163,9 @@ export const mariadbRouter = createTRPCRouter({
 	saveExternalPort: protectedProcedure
 		.input(apiSaveExternalPortMariaDB)
 		.mutation(async ({ input, ctx }) => {
-			const mongo = await findMariadbById(input.mariadbId);
+			const mariadb = await findMariadbById(input.mariadbId);
 			if (
-				mongo.environment.project.organizationId !==
+				mariadb.environment.project.organizationId !==
 				ctx.session.activeOrganizationId
 			) {
 				throw new TRPCError({
@@ -172,11 +173,25 @@ export const mariadbRouter = createTRPCRouter({
 					message: "You are not authorized to save this external port",
 				});
 			}
+
+			if (input.externalPort) {
+				const portCheck = await checkPortInUse(
+					input.externalPort,
+					mariadb.serverId || undefined,
+				);
+				if (portCheck.isInUse) {
+					throw new TRPCError({
+						code: "CONFLICT",
+						message: `Port ${input.externalPort} is already in use by ${portCheck.conflictingContainer}`,
+					});
+				}
+			}
+
 			await updateMariadbById(input.mariadbId, {
 				externalPort: input.externalPort,
 			});
 			await deployMariadb(input.mariadbId);
-			return mongo;
+			return mariadb;
 		}),
 	deploy: protectedProcedure
 		.input(apiDeployMariaDB)
diff --git a/apps/dokploy/server/api/routers/mongo.ts b/apps/dokploy/server/api/routers/mongo.ts
index ae0fa4741..661c808db 100644
--- a/apps/dokploy/server/api/routers/mongo.ts
+++ b/apps/dokploy/server/api/routers/mongo.ts
@@ -1,5 +1,6 @@
 import {
 	addNewService,
+	checkPortInUse,
 	checkServiceAccess,
 	createMongo,
 	createMount,
@@ -189,6 +190,20 @@ export const mongoRouter = createTRPCRouter({
 					message: "You are not authorized to save this external port",
 				});
 			}
+
+			if (input.externalPort) {
+				const portCheck = await checkPortInUse(
+					input.externalPort,
+					mongo.serverId || undefined,
+				);
+				if (portCheck.isInUse) {
+					throw new TRPCError({
+						code: "CONFLICT",
+						message: `Port ${input.externalPort} is already in use by ${portCheck.conflictingContainer}`,
+					});
+				}
+			}
+
 			await updateMongoById(input.mongoId, {
 				externalPort: input.externalPort,
 			});
diff --git a/apps/dokploy/server/api/routers/mysql.ts b/apps/dokploy/server/api/routers/mysql.ts
index 5204fedc8..9af93b556 100644
--- a/apps/dokploy/server/api/routers/mysql.ts
+++ b/apps/dokploy/server/api/routers/mysql.ts
@@ -1,5 +1,6 @@
 import {
 	addNewService,
+	checkPortInUse,
 	checkServiceAccess,
 	createMount,
 	createMysql,
@@ -177,9 +178,9 @@ export const mysqlRouter = createTRPCRouter({
 	saveExternalPort: protectedProcedure
 		.input(apiSaveExternalPortMySql)
 		.mutation(async ({ input, ctx }) => {
-			const mongo = await findMySqlById(input.mysqlId);
+			const mysql = await findMySqlById(input.mysqlId);
 			if (
-				mongo.environment.project.organizationId !==
+				mysql.environment.project.organizationId !==
 				ctx.session.activeOrganizationId
 			) {
 				throw new TRPCError({
@@ -187,11 +188,25 @@ export const mysqlRouter = createTRPCRouter({
 					message: "You are not authorized to save this external port",
 				});
 			}
+
+			if (input.externalPort) {
+				const portCheck = await checkPortInUse(
+					input.externalPort,
+					mysql.serverId || undefined,
+				);
+				if (portCheck.isInUse) {
+					throw new TRPCError({
+						code: "CONFLICT",
+						message: `Port ${input.externalPort} is already in use by ${portCheck.conflictingContainer}`,
+					});
+				}
+			}
+
 			await updateMySqlById(input.mysqlId, {
 				externalPort: input.externalPort,
 			});
 			await deployMySql(input.mysqlId);
-			return mongo;
+			return mysql;
 		}),
 	deploy: protectedProcedure
 		.input(apiDeployMySql)
diff --git a/apps/dokploy/server/api/routers/postgres.ts b/apps/dokploy/server/api/routers/postgres.ts
index e1718bff1..97db0b878 100644
--- a/apps/dokploy/server/api/routers/postgres.ts
+++ b/apps/dokploy/server/api/routers/postgres.ts
@@ -1,5 +1,6 @@
 import {
 	addNewService,
+	checkPortInUse,
 	checkServiceAccess,
 	createMount,
 	createPostgres,
@@ -192,6 +193,20 @@ export const postgresRouter = createTRPCRouter({
 					message: "You are not authorized to save this external port",
 				});
 			}
+
+			if (input.externalPort) {
+				const portCheck = await checkPortInUse(
+					input.externalPort,
+					postgres.serverId || undefined,
+				);
+				if (portCheck.isInUse) {
+					throw new TRPCError({
+						code: "CONFLICT",
+						message: `Port ${input.externalPort} is already in use by ${portCheck.conflictingContainer}`,
+					});
+				}
+			}
+
 			await updatePostgresById(input.postgresId, {
 				externalPort: input.externalPort,
 			});
diff --git a/apps/dokploy/server/api/routers/redis.ts b/apps/dokploy/server/api/routers/redis.ts
index d377b1707..a5cc7c9aa 100644
--- a/apps/dokploy/server/api/routers/redis.ts
+++ b/apps/dokploy/server/api/routers/redis.ts
@@ -1,5 +1,6 @@
 import {
 	addNewService,
+	checkPortInUse,
 	checkServiceAccess,
 	createMount,
 	createRedis,
@@ -201,9 +202,9 @@ export const redisRouter = createTRPCRouter({
 	saveExternalPort: protectedProcedure
 		.input(apiSaveExternalPortRedis)
 		.mutation(async ({ input, ctx }) => {
-			const mongo = await findRedisById(input.redisId);
+			const redis = await findRedisById(input.redisId);
 			if (
-				mongo.environment.project.organizationId !==
+				redis.environment.project.organizationId !==
 				ctx.session.activeOrganizationId
 			) {
 				throw new TRPCError({
@@ -211,11 +212,25 @@ export const redisRouter = createTRPCRouter({
 					message: "You are not authorized to save this external port",
 				});
 			}
+
+			if (input.externalPort) {
+				const portCheck = await checkPortInUse(
+					input.externalPort,
+					redis.serverId || undefined,
+				);
+				if (portCheck.isInUse) {
+					throw new TRPCError({
+						code: "CONFLICT",
+						message: `Port ${input.externalPort} is already in use by ${portCheck.conflictingContainer}`,
+					});
+				}
+			}
+
 			await updateRedisById(input.redisId, {
 				externalPort: input.externalPort,
 			});
 			await deployRedis(input.redisId);
-			return mongo;
+			return redis;
 		}),
 	deploy: protectedProcedure
 		.input(apiDeployRedis)