diff --git a/src/libpsl-native/src/CMakeLists.txt b/src/libpsl-native/src/CMakeLists.txt
index b830e5d..889ba7b 100644
--- a/src/libpsl-native/src/CMakeLists.txt
+++ b/src/libpsl-native/src/CMakeLists.txt
@@ -8,10 +8,8 @@ add_library(psl-native SHARED
   getfileowner.cpp
   getcurrentthreadid.cpp
   getcurrentprocessorid.cpp
-  getusername.cpp
   getcomputername.cpp
   getlinkcount.cpp
-  getfullyqualifiedname.cpp
   geterrorcategory.cpp
   getinodedata.cpp
   isfile.cpp
diff --git a/src/libpsl-native/src/getfullyqualifiedname.cpp b/src/libpsl-native/src/getfullyqualifiedname.cpp
deleted file mode 100644
index 51df25a..0000000
--- a/src/libpsl-native/src/getfullyqualifiedname.cpp
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright (c) Microsoft Corporation. All rights reserved.
-// Licensed under the MIT License.
-
-//! @brief Implements GetFullyQualifiedName on Linux
-
-#include "getcomputername.h"
-#include "getfullyqualifiedname.h"
-
-#include <errno.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netdb.h>
-
-//! @brief GetFullyQualifiedName retrieves the fully qualified dns name of the host
-//!
-//! @retval username as UTF-8 string, or null if unsuccessful
-char *GetFullyQualifiedName()
-{
-    errno = 0;
-
-    char *computerName = GetComputerName();
-    if (computerName == NULL)
-    {
-        return NULL;
-    }
-
-    struct addrinfo hints, *info;
-
-    memset(&hints, 0, sizeof hints);
-    hints.ai_family = AF_UNSPEC; /*either IPV4 or IPV6*/
-    hints.ai_socktype = SOCK_STREAM;
-    hints.ai_flags = AI_CANONNAME;
-
-    /* There are several ways to get the domain name:
-     * uname(2), gethostbyname(3), resolver(3), getdomainname(2),
-     * and getaddrinfo(3).  Some of these are not portable, some aren't
-     * POSIX compliant, and some are being deprecated. getaddrinfo seems
-     * to be the best choice.
-     */
-    char *fullName = NULL;
-    if (getaddrinfo(computerName, "http", &hints, &info) != 0)
-    {
-        goto exit;
-    }
-
-    // return the first canonical name in the list
-    fullName = strndup(info->ai_canonname, strnlen(info->ai_canonname, NI_MAXHOST));
-
-    // only free info if getaddrinfo was successful
-    freeaddrinfo(info);
-exit:
-    free(computerName);
-    return fullName;
-}
diff --git a/src/libpsl-native/src/getfullyqualifiedname.h b/src/libpsl-native/src/getfullyqualifiedname.h
deleted file mode 100644
index a9fb263..0000000
--- a/src/libpsl-native/src/getfullyqualifiedname.h
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) Microsoft Corporation. All rights reserved.
-// Licensed under the MIT License.
-
-#pragma once
-
-#include "pal.h"
-
-PAL_BEGIN_EXTERNC
-
-char *GetFullyQualifiedName();
-
-PAL_END_EXTERNC
diff --git a/src/libpsl-native/src/getusername.cpp b/src/libpsl-native/src/getusername.cpp
deleted file mode 100644
index ed694f1..0000000
--- a/src/libpsl-native/src/getusername.cpp
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) Microsoft Corporation. All rights reserved.
-// Licensed under the MIT License.
-
-//! @brief Implements GetUserName for Linux
-
-#include "getpwuid.h"
-#include "getusername.h"
-
-#include <unistd.h>
-
-//! @brief GetUserName retrieves the name of the user associated with
-//! the current thread.
-//!
-//! @retval username as UTF-8 string, or null if unsuccessful
-char* GetUserName()
-{
-    // geteuid() gets the effective user ID of the calling process, and is always successful
-    return GetPwUid(geteuid());
-}
diff --git a/src/libpsl-native/src/getusername.h b/src/libpsl-native/src/getusername.h
deleted file mode 100644
index e9461c7..0000000
--- a/src/libpsl-native/src/getusername.h
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) Microsoft Corporation. All rights reserved.
-// Licensed under the MIT License.
-
-#pragma once
-
-#include "pal.h"
-
-PAL_BEGIN_EXTERNC
-
-char* GetUserName();
-
-PAL_END_EXTERNC
diff --git a/src/libpsl-native/test/CMakeLists.txt b/src/libpsl-native/test/CMakeLists.txt
index 2f57741..eb496e0 100644
--- a/src/libpsl-native/test/CMakeLists.txt
+++ b/src/libpsl-native/test/CMakeLists.txt
@@ -5,10 +5,8 @@ add_executable(psl-native-test
   test-locale.cpp
   test-getuserfrompid.cpp
   test-getcurrentprocessid.cpp
-  test-getusername.cpp
   test-getcomputername.cpp
   test-getlinkcount.cpp
-  test-getfullyqualifiedname.cpp
   test-isdirectory.cpp
   test-isfile.cpp
   test-issymlink.cpp
diff --git a/src/libpsl-native/test/test-getfullyqualifiedname.cpp b/src/libpsl-native/test/test-getfullyqualifiedname.cpp
deleted file mode 100644
index 8378f3a..0000000
--- a/src/libpsl-native/test/test-getfullyqualifiedname.cpp
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) Microsoft Corporation. All rights reserved.
-// Licensed under the MIT License.
-
-//! @brief Unit tests for GetFullyQualifiedName
-
-#include <gtest/gtest.h>
-#include "getcomputername.h"
-#include "getfullyqualifiedname.h"
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netdb.h>
-#include <string>
-
-TEST(GetFullyQualifiedNameTest, ValidateLinuxGetFullyQualifiedDomainName)
-{
-    char *hostname = GetComputerName();
-    ASSERT_STRNE(NULL, hostname);
-
-    // this might be fail
-    errno = 0;
-    char *actual = GetFullyQualifiedName();
-    int fqdnErrno = errno;
-
-    struct addrinfo hints, *info;
-    memset(&hints, 0, sizeof(hints));
-    hints.ai_family = AF_UNSPEC;
-    hints.ai_socktype = SOCK_STREAM;
-    hints.ai_flags = AI_CANONNAME;
-    errno = 0;
-    if (getaddrinfo(hostname, "http", &hints, &info) != 0)
-    {
-        // test that getaddrinfo failed the same way
-        EXPECT_EQ(fqdnErrno, errno);
-        goto exit;
-    }
-
-    // Compare canonical name to FQDN
-    EXPECT_STREQ(info->ai_canonname, actual);
-    freeaddrinfo(info);
-exit:
-    free(hostname);
-}
diff --git a/src/libpsl-native/test/test-getusername.cpp b/src/libpsl-native/test/test-getusername.cpp
deleted file mode 100644
index f3adf3b..0000000
--- a/src/libpsl-native/test/test-getusername.cpp
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) Microsoft Corporation. All rights reserved.
-// Licensed under the MIT License.
-
-//! @brief Unit tests for GetUserName
-
-#include <gtest/gtest.h>
-#include <pwd.h>
-#include "getusername.h"
-
-TEST(GetUserName, Success)
-{
-    char* expected = getpwuid(geteuid())->pw_name;
-    EXPECT_STREQ(GetUserName(), expected);
-}