diff --git a/Makefile b/Makefile
index 8f41aa2..4943dda 100644
--- a/Makefile
+++ b/Makefile
@@ -2,6 +2,7 @@ SBINDIR=/usr/local/sbin
 UNITDIR=/etc/systemd/system
 DESTDIR=
 PROGNAME=qubes-network-server
+PYTHON=/usr/bin/python3
 
 all: src/qubes-routing-manager.service
 
@@ -32,8 +33,10 @@ rpm: dist
 
 install-template: all
 	install -Dm 755 src/qubes-routing-manager -t $(DESTDIR)/$(SBINDIR)/
+	sed -i "s,^#!.*,#!$(PYTHON)," $(DESTDIR)/$(SBINDIR)/qubes-routing-manager
 	install -Dm 644 src/qubes-routing-manager.service -t $(DESTDIR)/$(UNITDIR)/
 
+# Python 3 is always used for Qubes admin package.
 install-dom0:
 	PYTHONDONTWRITEBYTECODE=1 python3 setup.py install $(PYTHON_PREFIX_ARG) -O0 --root $(DESTDIR)
 
diff --git a/qubes-network-server.spec b/qubes-network-server.spec
index 6a44fa2..9549e6e 100644
--- a/qubes-network-server.spec
+++ b/qubes-network-server.spec
@@ -15,44 +15,70 @@ Source0:        https://github.com/Rudd-O/%{name}/archive/{%version}.tar.gz#/%{n
 BuildRequires:  make
 BuildRequires:  coreutils
 BuildRequires:  tar
-BuildRequires:  gawk
 BuildRequires:  findutils
-BuildRequires:  systemd
+%if 1%{?fc30} == 11
+BuildRequires:  python2
+BuildRequires:  python2-rpm-macros
+%global pythoninterp %{_bindir}/python2
+%else
+BuildRequires:  python3
+BuildRequires:  python3-rpm-macros
+%global pythoninterp %{_bindir}/python3
+%endif
+
+%if 1%{?fc25} == 1
 BuildRequires:  systemd-rpm-macros
+%else
+%global _presetdir %{_prefix}/lib/systemd/system-preset
+%global _unitdir %{_prefix}/lib/systemd/system
+%endif
 
 Requires:       qubes-core-agent-networking >= 4.0.51-1
-Requires:       qubes-core-agent-networking < 4.1
-Requires:       python3
-Requires:       python3-qubesdb
+Conflicts:      qubes-core-agent-networking >= 4.1
+Requires:       python2
+Requires:       python2-qubesdb
 
 %description
 This package lets you turn your Qubes OS into a network server.  Install this
-in the TemplateVM of your NetVM.  Then install the companion %{name}-dom0 package
-in your dom0.
+in the TemplateVM of your NetVM.  Then install the companion
+qubes-core-admin-addon-network-server package in your dom0.
 
-Please see README.md enclosed in the package for instructions on how to use this.
+Please see README.md enclosed in the package for instructions on how to use
+this software.
 
 %package -n     qubes-core-admin-addon-network-server
 Summary:        dom0 administrative extension for Qubes network server
 
+BuildRequires:  make
+BuildRequires:  coreutils
+BuildRequires:  tar
+BuildRequires:  findutils
+BuildRequires:  python3
+BuildRequires:  python3-rpm-macros
+
+Requires:       python3
 Requires:       qubes-core-dom0 >= 4.0.49-1
+Conflicts:      qubes-core-dom0 >= 4.1
 
 %description -n qubes-core-admin-addon-network-server
 This package lets you turn your Qubes OS into a network server.  Install this
 in your dom0.  Then install the companion qubes-network-server package in the
 TemplateVM of your NetVM.
 
+Please see README.md enclosed in the package for instructions on how to use
+this software.
+
 %prep
 %setup -q
 
 %build
 # variables must be kept in sync with install
-make DESTDIR=$RPM_BUILD_ROOT SBINDIR=%{_sbindir} UNITDIR=%{_unitdir}
+make DESTDIR=$RPM_BUILD_ROOT SBINDIR=%{_sbindir} UNITDIR=%{_unitdir} PYTHON=%{pythoninterp}
 
 %install
 rm -rf $RPM_BUILD_ROOT
 # variables must be kept in sync with build
-make install DESTDIR=$RPM_BUILD_ROOT SBINDIR=%{_sbindir} UNITDIR=%{_unitdir}
+make install DESTDIR=$RPM_BUILD_ROOT SBINDIR=%{_sbindir} UNITDIR=%{_unitdir} PYTHON=%{pythoninterp}
 mkdir -p "$RPM_BUILD_ROOT"/%{_presetdir}
 echo 'enable qubes-routing-manager.service' > "$RPM_BUILD_ROOT"/%{_presetdir}/75-%{name}.preset
 
@@ -76,10 +102,18 @@ echo 'enable qubes-routing-manager.service' > "$RPM_BUILD_ROOT"/%{_presetdir}/75
 %systemd_postun_with_restart qubes-routing-manager.service
 
 %post -n         qubes-core-admin-addon-network-server
+%if 1%{?fc25} == 11
+systemctl try-restart qubesd.service
+%else
 %systemd_post qubesd.service
+%endif
 
 %postun -n       qubes-core-admin-addon-network-server
+%if 1%{?fc25} == 11
+systemctl try-restart qubesd.service
+%else
 %systemd_postun_with_restart qubesd.service
+%endif
 
 %changelog
 * Mon Apr 13 2020 Manuel Amador (Rudd-O) <rudd-o@rudd-o.com>
diff --git a/src/qubes-routing-manager b/src/qubes-routing-manager
index 26e0701..e850eb0 100755
--- a/src/qubes-routing-manager
+++ b/src/qubes-routing-manager
@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/python2
 
 '''
 This program reads the /qubes-firewall/{ip}/qubes-routing-method file
@@ -42,7 +42,7 @@ class AdjunctWorker(object):
         def run_ipt(*args):
             return subprocess.check_call([cmd, '-w'] + list(args))
 
-        out = subprocess.check_output([cmd + '-save', '-w'], universal_newlines=True).splitlines()
+        out = subprocess.check_output([cmd + '-save'], universal_newlines=True).splitlines()
 
         if enable:
             # Create necessary prerouting chain.