diff --git a/configure.ac b/configure.ac
index b342ca73..f2914e9d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -129,15 +129,15 @@ AS_CASE([${enable_shared}], [yes], AC_DEFINE([BOOST_ALL_DYN_LINK]))
 
 # Check dependencies.
 #==============================================================================
-# Require Boost of at least version 1.56.0 and output ${boost_CPPFLAGS/LDFLAGS}.
+# Require Boost of at least version 1.57.0 and output ${boost_CPPFLAGS/LDFLAGS}.
 #------------------------------------------------------------------------------
 AS_CASE([${CC}], [*],
-    [AX_BOOST_BASE([1.56.0],
+    [AX_BOOST_BASE([1.57.0],
         [AC_SUBST([boost_CPPFLAGS], [${BOOST_CPPFLAGS}])
          AC_SUBST([boost_LDFLAGS], [${BOOST_LDFLAGS}])
          AC_MSG_NOTICE([boost_CPPFLAGS : ${boost_CPPFLAGS}])
          AC_MSG_NOTICE([boost_LDFLAGS : ${boost_LDFLAGS}])],
-        [AC_MSG_ERROR([Boost 1.56.0 or later is required but was not found.])])])
+        [AC_MSG_ERROR([Boost 1.57.0 or later is required but was not found.])])])
 
 AS_CASE([${with_tests}], [yes],
     [AX_BOOST_UNIT_TEST_FRAMEWORK
diff --git a/console/executor.cpp b/console/executor.cpp
index a4b95702..7eb92271 100644
--- a/console/executor.cpp
+++ b/console/executor.cpp
@@ -63,8 +63,8 @@ executor::executor(parser& metadata, std::istream& input,
         network.archive_directory,
         network.rotation_size,
         network.maximum_archive_size,
-        network.minimum_free_space
-        ////network.maximum_archive_files
+        network.minimum_free_space,
+        network.maximum_archive_files
     };
 
     const log::rotable_file error_file
@@ -73,8 +73,8 @@ executor::executor(parser& metadata, std::istream& input,
         network.archive_directory,
         network.rotation_size,
         network.maximum_archive_size,
-        network.minimum_free_space
-        ////network.maximum_archive_files
+        network.minimum_free_space,
+        network.maximum_archive_files
     };
 
     log::stream console_out(&output_, null_deleter());
diff --git a/install.sh b/install.sh
index 9acccb20..c351769d 100755
--- a/install.sh
+++ b/install.sh
@@ -32,8 +32,8 @@ BUILD_DIR="build-libbitcoin-server"
 
 # Boost archive.
 #------------------------------------------------------------------------------
-BOOST_URL="http://downloads.sourceforge.net/project/boost/boost/1.56.0/boost_1_56_0.tar.bz2"
-BOOST_ARCHIVE="boost_1_56_0.tar.bz2"
+BOOST_URL="http://downloads.sourceforge.net/project/boost/boost/1.57.0/boost_1_57_0.tar.bz2"
+BOOST_ARCHIVE="boost_1_57_0.tar.bz2"
 
 
 # Initialize the build environment.
@@ -453,6 +453,7 @@ build_from_tarball()
 
     # Use the suffixed archive name as the extraction directory.
     local EXTRACT="build-$ARCHIVE"
+    push_directory "$BUILD_DIR"
     create_directory $EXTRACT
     push_directory $EXTRACT
 
@@ -485,6 +486,8 @@ build_from_tarball()
     # Restore flags to prevent side effects.
     export LDFLAGS=$SAVE_LDFLAGS
     export CPPFLAGS=$SAVE_LCPPFLAGS
+
+    pop_directory
 }
 
 # Because boost ICU detection assumes in incorrect ICU path.
@@ -570,6 +573,7 @@ build_from_tarball_boost()
 
     # Use the suffixed archive name as the extraction directory.
     local EXTRACT="build-$ARCHIVE"
+    push_directory "$BUILD_DIR"
     create_directory $EXTRACT
     push_directory $EXTRACT
 
@@ -635,11 +639,14 @@ build_from_tarball_boost()
         "$@"
 
     pop_directory
+    pop_directory
 }
 
 # Standard build from github.
 build_from_github()
 {
+    push_directory "$BUILD_DIR"
+
     local ACCOUNT=$1
     local REPO=$2
     local BRANCH=$3
@@ -660,6 +667,7 @@ build_from_github()
     push_directory $REPO
     make_current_directory $JOBS "${CONFIGURATION[@]}"
     pop_directory
+    pop_directory
 }
 
 # Standard build of current directory.
@@ -691,10 +699,8 @@ build_from_travis()
 
     # The primary build is not downloaded if we are running in Travis.
     if [[ $TRAVIS == true ]]; then
-        push_directory ".."
         build_from_local "Local $TRAVIS_REPO_SLUG" $JOBS "${OPTIONS[@]}" "$@"
         make_tests $JOBS
-        pop_directory
     else
         build_from_github $ACCOUNT $REPO $BRANCH $JOBS "${OPTIONS[@]}" "$@"
         push_directory $REPO
@@ -727,5 +733,5 @@ build_all()
 create_directory "$BUILD_DIR"
 push_directory "$BUILD_DIR"
 initialize_git
-time build_all "${CONFIGURE_OPTIONS[@]}"
 pop_directory
+time build_all "${CONFIGURE_OPTIONS[@]}"
diff --git a/src/parser.cpp b/src/parser.cpp
index 0a7feb36..4845e69e 100644
--- a/src/parser.cpp
+++ b/src/parser.cpp
@@ -159,6 +159,11 @@ options_metadata parser::load_settings()
         value<size_t>(&configured.network.minimum_free_space),
         "The minimum free space required in the archive directory, defaults to 0."
     )
+    (
+        "log.maximum_archive_files",
+        value<size_t>(&configured.network.maximum_archive_files),
+        "The maximum number of logs to persist, defaults to 'maximum'."
+    )
     /* [network] */
     (
         "network.threads",