diff --git a/.circleci/config.yml b/.circleci/config.yml
index 8397ee6..16b4591 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -40,7 +40,7 @@ commands:
       - run: sudo apt-get install mariadb-client-10.6
   install-redis-extras:
     steps:
-      - run: 
+      - run:
           name: "Install Redis Extras"
           command: |
             yes '' | sudo pecl install redis || true
diff --git a/README.md b/README.md
index 820297a..737c6d4 100644
--- a/README.md
+++ b/README.md
@@ -105,6 +105,7 @@ There's a known issue with WordPress `alloptions` cache design. Specifically, a
 ## Changelog ##
 
 ### 1.4.3-dev ###
+* Bug fix: Connect via unix socket instead of filesystem to be compatible with php open_basedir restrictions [[426](https://github.com/pantheon-systems/wp-redis/pull/426)] (props @hj-collab)
 * Bug fix: Fixes assumption that CACHE_PORT & CACHE_PASSWORD are Set. [[428](https://github.com/pantheon-systems/wp-redis/pull/428)] (props @timnolte)
 
 ### 1.4.2 (May 15, 2023) ###
diff --git a/behat.yml b/behat.yml
index ff5ce58..12dad86 100644
--- a/behat.yml
+++ b/behat.yml
@@ -3,10 +3,11 @@ default:
   suites:
     default:
       paths:
-        - tests/behat
+        - tests/behat/
       contexts:
         - Behat\MinkExtension\Context\MinkContext
         - PantheonSystems\PantheonWordPressUpstreamTests\Behat\AdminLogIn
+        - behat\features\bootstrap\WpRedisFeatureContext
   extensions:
     Behat\MinkExtension:
       # base_url set by ENV
diff --git a/composer.json b/composer.json
index 9bc37b1..a5f0929 100644
--- a/composer.json
+++ b/composer.json
@@ -28,5 +28,9 @@
     "allow-plugins": {
       "dealerdirect/phpcodesniffer-composer-installer": true
     }
+  },
+  "autoload": {
+    "psr-4": { "behat\\features\\bootstrap\\": "tests/behat/features/bootstrap/" }
   }
+
 }
diff --git a/object-cache.php b/object-cache.php
index d2f3ced..144a525 100644
--- a/object-cache.php
+++ b/object-cache.php
@@ -1261,9 +1261,12 @@ public function build_client_parameters( $redis_server ) {
 			}
 		}
 
-		if ( file_exists( $redis_server['host'] ) && 'socket' === filetype( $redis_server['host'] ) ) { // unix socket connection.
+		if ( strpos( $redis_server['host'], 'unix:///' ) === 0 ) { // Unix socket connection.
 			// port must be null or socket won't connect.
 			$port = null;
+
+		} else { // tcp connection.
+			$port = ! empty( $redis_server['port'] ) ? $redis_server['port'] : 6379;
 		}
 
 		$defaults = [
diff --git a/readme.txt b/readme.txt
index 2779580..f2515fe 100644
--- a/readme.txt
+++ b/readme.txt
@@ -103,6 +103,7 @@ There's a known issue with WordPress `alloptions` cache design. Specifically, a
 == Changelog ==
 
 = 1.4.3-dev =
+* Bug fix: Connect via unix socket instead of filesystem to be compatible with php open_basedir restrictions [[426](https://github.com/pantheon-systems/wp-redis/pull/426)] (props @hj-collab)
 * Bug fix: Fixes assumption that CACHE_PORT & CACHE_PASSWORD are Set. [[428](https://github.com/pantheon-systems/wp-redis/pull/428)] (props @tnolte)
 
 = 1.4.2 (May 15, 2023) =
diff --git a/tests/behat/features/bootstrap/WpRedisFeatureContext.php b/tests/behat/features/bootstrap/WpRedisFeatureContext.php
new file mode 100644
index 0000000..e5f0981
--- /dev/null
+++ b/tests/behat/features/bootstrap/WpRedisFeatureContext.php
@@ -0,0 +1,35 @@
+<?php
+// features/bootstrap/WPRedisFeatureContext.php
+
+namespace behat\features\bootstrap;
+
+use Behat\Behat\Context\Context;
+
+class WpRedisFeatureContext implements Context
+{
+
+	/**
+	 * Initializes context.
+	 *
+	 * Every scenario gets its own context instance.
+	 * You can also pass arbitrary arguments to the
+	 * context constructor through behat.yml.
+	 */
+	public function __construct()
+	{
+	}
+
+	/**
+	 * Waits a certain number of seconds.
+	 *
+	 * @param int $seconds
+	 *   How long to wait.
+	 *
+	 * @When I wait :seconds second(s)
+	 */
+	public function wait($seconds)
+	{
+		sleep($seconds);
+	}
+
+}
diff --git a/tests/behat/load-wp.feature b/tests/behat/features/load-wp.feature
similarity index 97%
rename from tests/behat/load-wp.feature
rename to tests/behat/features/load-wp.feature
index ca6eec8..51b7994 100644
--- a/tests/behat/load-wp.feature
+++ b/tests/behat/features/load-wp.feature
@@ -22,6 +22,7 @@ Feature: Load WordPress
     When I go to "/wp-admin/options-general.php"
     And I fill in "blogname" with "Pantheon WordPress Site"
     And I press "submit"
+    When I wait "1" second
     Then print current URL
     And I should see "Settings saved."
 
diff --git a/tests/behat/wp-redis.feature b/tests/behat/features/wp-redis.feature
similarity index 67%
rename from tests/behat/wp-redis.feature
rename to tests/behat/features/wp-redis.feature
index dec2f5f..3bd1074 100644
--- a/tests/behat/wp-redis.feature
+++ b/tests/behat/features/wp-redis.feature
@@ -15,4 +15,11 @@ Feature: WP Redis
     Then I should see "Redis Calls:"
     And I should see "Cache Hits:"
     And I should see "Cache Misses:"
-    And I should see "- get:"
+    And I should see "Redis Calls:"
+
+    # We call the same page twice to give Redis an opportunity to cache
+    # something so that `get` actually fires.
+    When I am on "/?redis_debug"
+    Then I should see "Group:"
+    Then I should see "- get"
+