diff --git a/src/db.mk b/src/db.mk
index fe4a013a..7bf09dcd 100644
--- a/src/db.mk
+++ b/src/db.mk
@@ -8,7 +8,7 @@ $(PKG)_VERSION  := 6.1.26
 $(PKG)_CHECKSUM := dd1417af5443f326ee3998e40986c3c60e2a7cfb5bfa25177ef7cadb2afb13a6
 $(PKG)_SUBDIR   := db-$($(PKG)_VERSION)
 $(PKG)_FILE     := db-$($(PKG)_VERSION).tar.gz
-$(PKG)_URL      := http://download.oracle.com/berkeley-db/$($(PKG)_FILE)
+$(PKG)_URL      := https://download.oracle.com/berkeley-db/$($(PKG)_FILE)
 $(PKG)_DEPS     := cc
 
 define $(PKG)_UPDATE
diff --git a/src/gdal.mk b/src/gdal.mk
index 5276bc0c..64536f11 100644
--- a/src/gdal.mk
+++ b/src/gdal.mk
@@ -9,7 +9,6 @@ $(PKG)_CHECKSUM := 52f01bda8968643633016769607e6082a8ba1c746fadc2c1abe12cf7dc8f6
 $(PKG)_SUBDIR   := gdal-$($(PKG)_VERSION)
 $(PKG)_FILE     := gdal-$($(PKG)_VERSION).tar.gz
 $(PKG)_URL      := https://download.osgeo.org/gdal/$($(PKG)_VERSION)/$($(PKG)_FILE)
-$(PKG)_URL_2    := ftp://ftp.remotesensing.org/gdal/$($(PKG)_VERSION)/$($(PKG)_FILE)
 $(PKG)_DEPS     := cc armadillo curl expat geos giflib gta hdf4 hdf5 \
                    jpeg json-c libgeotiff libmysqlclient libpng libxml2 \
                    netcdf openjpeg postgresql proj spatialite sqlite tiff zlib
diff --git a/src/geos.mk b/src/geos.mk
index b937024f..5d5d2657 100644
--- a/src/geos.mk
+++ b/src/geos.mk
@@ -9,7 +9,6 @@ $(PKG)_CHECKSUM := 045a13df84d605a866602f6020fc6cbf8bf4c42fb50de237a08926e1d7d76
 $(PKG)_SUBDIR   := geos-$($(PKG)_VERSION)
 $(PKG)_FILE     := geos-$($(PKG)_VERSION).tar.bz2
 $(PKG)_URL      := https://download.osgeo.org/geos/$($(PKG)_FILE)
-$(PKG)_URL_2    := ftp://ftp.remotesensing.org/geos/$($(PKG)_FILE)
 $(PKG)_DEPS     := cc
 
 define $(PKG)_UPDATE
diff --git a/src/libgeotiff.mk b/src/libgeotiff.mk
index 841c37f0..102b20eb 100644
--- a/src/libgeotiff.mk
+++ b/src/libgeotiff.mk
@@ -9,7 +9,6 @@ $(PKG)_CHECKSUM := ad87048adb91167b07f34974a8e53e4ec356494c29f1748de95252e8f81a5
 $(PKG)_SUBDIR   := libgeotiff-$($(PKG)_VERSION)
 $(PKG)_FILE     := libgeotiff-$($(PKG)_VERSION).tar.gz
 $(PKG)_URL      := https://download.osgeo.org/geotiff/libgeotiff/$($(PKG)_FILE)
-$(PKG)_URL_2    := ftp://ftp.remotesensing.org/geotiff/libgeotiff/$($(PKG)_FILE)
 $(PKG)_DEPS     := cc jpeg proj tiff zlib
 
 define $(PKG)_UPDATE
diff --git a/src/libxml2.mk b/src/libxml2.mk
index e2892734..1f9d34a7 100644
--- a/src/libxml2.mk
+++ b/src/libxml2.mk
@@ -8,7 +8,7 @@ $(PKG)_CHECKSUM := ffb911191e509b966deb55de705387f14156e1a56b21824357cdf00532336
 $(PKG)_SUBDIR   := libxml2-$($(PKG)_VERSION)
 $(PKG)_FILE     := libxml2-$($(PKG)_VERSION).tar.gz
 $(PKG)_URL      := http://xmlsoft.org/sources/$($(PKG)_FILE)
-$(PKG)_URL_2    := ftp://xmlsoft.org/libxml2/$($(PKG)_FILE)
+$(PKG)_URL_2    := https://ftp.osuosl.org/pub/blfs/conglomeration/libxml2/$($(PKG)_FILE)
 $(PKG)_DEPS     := cc xz zlib
 
 define $(PKG)_UPDATE
diff --git a/src/muparser.mk b/src/muparser.mk
index 89ef84d5..169c4ba9 100644
--- a/src/muparser.mk
+++ b/src/muparser.mk
@@ -1,7 +1,7 @@
 # This file is part of MXE. See LICENSE.md for licensing information.
 
 PKG             := muparser
-$(PKG)_WEBSITE  := http://muparser.beltoforion.de/
+$(PKG)_WEBSITE  := http://beltoforion.de/article.php?a=muparser
 $(PKG)_DESCR    := muParser
 $(PKG)_IGNORE   :=
 $(PKG)_VERSION  := 2.2.5
diff --git a/src/muparserx-test.cpp b/src/muparserx-test.cpp
index 8ab0d2c8..feba4f48 100644
--- a/src/muparserx-test.cpp
+++ b/src/muparserx-test.cpp
@@ -2,7 +2,7 @@
  * This file is part of MXE. See LICENSE.md for licensing information.
  *
  * based on:
- * http://articles.beltoforion.de/article.php?a=muparserx&hl=en&p=using&s=idInclude#idEval
+ * http://beltoforion.de/article.php?a=muparserx&hl=en&p=using&s=idInclude#idEval
  */
 
 #include "mpParser.h"
diff --git a/src/muparserx.mk b/src/muparserx.mk
index f91f34f8..3506e544 100644
--- a/src/muparserx.mk
+++ b/src/muparserx.mk
@@ -1,7 +1,7 @@
 # This file is part of MXE. See LICENSE.md for licensing information.
 
 PKG             := muparserx
-$(PKG)_WEBSITE  := http://muparserx.beltoforion.de/
+$(PKG)_WEBSITE  := http://beltoforion.de/article.php?a=muparserx
 $(PKG)_DESCR    := muParserX
 $(PKG)_IGNORE   :=
 $(PKG)_VERSION  := 4.0.7
diff --git a/src/proj.mk b/src/proj.mk
index 667955b6..9c71aa51 100644
--- a/src/proj.mk
+++ b/src/proj.mk
@@ -8,7 +8,6 @@ $(PKG)_CHECKSUM := 6b1379a53317d9b5b8c723c1dc7bf2e3a8eb22ceb46b8807a1ce48ef65685
 $(PKG)_SUBDIR   := proj-$($(PKG)_VERSION)
 $(PKG)_FILE     := proj-$($(PKG)_VERSION).tar.gz
 $(PKG)_URL      := https://download.osgeo.org/proj/$($(PKG)_FILE)
-$(PKG)_URL_2    := ftp://ftp.remotesensing.org/proj/$($(PKG)_FILE)
 $(PKG)_DEPS     := cc
 
 define $(PKG)_UPDATE
diff --git a/src/tiff.mk b/src/tiff.mk
index abe979d7..4931ffbc 100644
--- a/src/tiff.mk
+++ b/src/tiff.mk
@@ -9,7 +9,6 @@ $(PKG)_CHECKSUM := 2c52d11ccaf767457db0c46795d9c7d1a8d8f76f68b0b800a3dfe45786b99
 $(PKG)_SUBDIR   := tiff-$($(PKG)_VERSION)
 $(PKG)_FILE     := tiff-$($(PKG)_VERSION).tar.gz
 $(PKG)_URL      := https://download.osgeo.org/libtiff/$($(PKG)_FILE)
-$(PKG)_URL_2    := ftp://ftp.remotesensing.org/libtiff/$($(PKG)_FILE)
 $(PKG)_DEPS     := cc jpeg xz zlib
 
 define $(PKG)_UPDATE