fix some broken URLs
diff --git a/Doc/using/unix.rst b/Doc/using/unix.rst
index 8060d41..1539254 100644
--- a/Doc/using/unix.rst
+++ b/Doc/using/unix.rst
@@ -26,11 +26,11 @@
.. seealso::
- http://www.linux.com/articles/60383
+ http://www.debian.org/doc/manuals/maint-guide/first.en.html
for Debian users
http://linuxmafia.com/pub/linux/suse-linux-internals/chapter35.html
for OpenSuse users
- http://docs.fedoraproject.org/drafts/rpm-guide-en/ch-creating-rpms.html
+ http://docs.fedoraproject.org/en-US/Fedora_Draft_Documentation/0.1/html/RPM_Guide/ch-creating-rpms.html
for Fedora users
http://www.slackbook.org/html/package-management-making-packages.html
for Slackware users