update links

Author: jmckenna

en/basemaps/install.txt

@@ -41,7 +41,7 @@ Imposm Installation
 OpenStreetMap data are processed by imposm. This is a fast and easy step.
 
 Check the Installation process from
-http://imposm.org/docs/imposm/latest/install.html or see the steps below:
+https://imposm.org/docs/imposm/latest/install.html or see the steps below:
 
 .. code-block:: bash
 
@@ -60,7 +60,7 @@ case).
 Data Import
 ------------
 
-Source: http://imposm.org/docs/imposm/latest/tutorial.html#writing
+Source: https://imposm.org/docs/imposm/latest/tutorial.html#writing
 
 .. code-block:: bash
 

en/input/vector/ogr.txt

@@ -1040,8 +1040,8 @@ SISTEMA INFORMATIVO TERRITORIALE ED AMBIENTALE ( http://www.geografia.toscana.it
 .. _`Microstation DGN files`: https://gdal.org/drivers/vector/dgn.html
 .. _`MySQL`: https://gdal.org/drivers/vector/mysql.html
 .. _`OGDI Vectors`: https://gdal.org/drivers/vector/ogdi.html
-.. _`ODBC`: http://www.gdal.org/drv_odbc.html
-.. _`Oracle Spatial`: https://gdal.org/drivers/vector/odbc.html
+.. _`ODBC`: https://gdal.org/en/stable/drivers/vector/odbc.html
+.. _`Oracle Spatial`: https://gdal.org/en/stable/drivers/vector/oci.html
 .. _`PostgreSQL`: https://gdal.org/drivers/vector/pg.html
 .. _`SDTS`: https://gdal.org/drivers/vector/sdts.html
 .. _`SQLite`: https://gdal.org/drivers/vector/sqlite.html

en/mapcache/caches.txt

@@ -415,7 +415,7 @@ In some cases, it may be desirable to have a precise hand on the
 filename to use for a given x,y,z tile lookup, e.g. to look for a file
 named `Z03-R00003-C000009.sqlite3` instead of just `Z3-R3-C9.sqlite3`. The
 <dbfile> entry supports formatting attributes, following the Unix
-printf syntax ( c.f.: http://linux.die.net/man/3/printf ), by suffixing
+printf syntax ( c.f.: https://linux.die.net/man/3/printf ), by suffixing
 each template key with "_fmt", e.g.:
 
 .. code-block:: xml

en/mapcache/sources.txt

@@ -55,7 +55,7 @@ Experimental
 
 WMTS Sources
 --------------------------------------------------------------------------------
-MapCache WMTS source uses GDAL WMTS driver under the hood. Note that GDAL version must be > 2.1 to be able to enable the driver correctly. GDAL WMTS driver documentation can be found on: http://www.gdal.org/frmt_wmts.html
+MapCache WMTS source uses GDAL WMTS driver under the hood. Note that GDAL version must be > 2.1 to be able to enable the driver correctly. GDAL WMTS driver documentation can be found on: https://gdal.org/en/stable/drivers/raster/wmts.html
 
 GDAL WMTS xml file is needed, example command to construct such a file directly from wmts source equipped with basic auth & user/pass is: 
 gdal_translate "WMTS:https://<url to capabilities>,layer=<layer id>" gdal_wmts.xml -of WMTS --config GDAL_HTTP_AUTH BASIC --config GDAL_HTTP_USERPWD <user:pass> 

en/mapfile/outputformat.txt

@@ -463,5 +463,5 @@ TRANSPARENT [on|off]
     generation with transparency it is best to use an otherwise unused color 
     as the background color.
 
-.. _`GDAL Geospatial PDF`: http://www.gdal.org/frmt_pdf.html
+.. _`GDAL Geospatial PDF`: https://gdal.org/en/stable/drivers/raster/pdf.html
 .. _`MapServer issue #2436`: https://github.com/MapServer/MapServer/issues/2436