Thanks for the informative responses.
More information on the subject:
1. The variable Encryption Protocol Range appears only in alpine
ver. 2.22 with the assignment:
Encryption Protocol Range = <No Value Set: using "no_min,no_max">
2. Attached are the outputs of the commands:
# ldd /usr/bin/alpine_2_20
# ldd /usr/bin/alpine_2_22
Thanks again for your help! linux-vdso.so.1 (0x00007ffc7c998000)
libgssapi_krb5.so.2 => /usr/lib/x86_64-linux-gnu/libgssapi_krb5.so.2
(0x00007f09effe1000)
libldap_r-2.4.so.2 => /usr/lib/x86_64-linux-gnu/libldap_r-2.4.so.2
(0x00007f09eff8d000)
libcrypto.so.1.0.2 => /usr/lib/x86_64-linux-gnu/libcrypto.so.1.0.2
(0x00007f09efb27000)
libssl.so.1.0.2 => /usr/lib/x86_64-linux-gnu/libssl.so.1.0.2
(0x00007f09ef8be000)
libtinfo.so.5 => /lib/x86_64-linux-gnu/libtinfo.so.5
(0x00007f09ef892000)
liblber-2.4.so.2 => /usr/lib/x86_64-linux-gnu/liblber-2.4.so.2
(0x00007f09ef881000)
libpam.so.0 => /lib/x86_64-linux-gnu/libpam.so.0 (0x00007f09ef86e000)
libkrb5.so.3 => /usr/lib/x86_64-linux-gnu/libkrb5.so.3
(0x00007f09ef78e000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x00007f09ef76d000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f09ef5ac000)
libk5crypto.so.3 => /usr/lib/x86_64-linux-gnu/libk5crypto.so.3
(0x00007f09ef578000)
libcom_err.so.2 => /lib/x86_64-linux-gnu/libcom_err.so.2
(0x00007f09ef572000)
libkrb5support.so.0 => /usr/lib/x86_64-linux-gnu/libkrb5support.so.0
(0x00007f09ef561000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f09ef55c000)
libkeyutils.so.1 => /lib/x86_64-linux-gnu/libkeyutils.so.1
(0x00007f09ef555000)
libresolv.so.2 => /lib/x86_64-linux-gnu/libresolv.so.2
(0x00007f09ef53b000)
libsasl2.so.2 => /usr/lib/x86_64-linux-gnu/libsasl2.so.2
(0x00007f09ef51e000)
libgnutls.so.30 => /usr/lib/x86_64-linux-gnu/libgnutls.so.30
(0x00007f09ef372000)
libaudit.so.1 => /lib/x86_64-linux-gnu/libaudit.so.1
(0x00007f09ef345000)
/lib64/ld-linux-x86-64.so.2 (0x00007f09f092d000)
libp11-kit.so.0 => /usr/lib/x86_64-linux-gnu/libp11-kit.so.0
(0x00007f09ef216000)
libidn2.so.0 => /usr/lib/x86_64-linux-gnu/libidn2.so.0
(0x00007f09ef1f7000)
libunistring.so.2 => /usr/lib/x86_64-linux-gnu/libunistring.so.2
(0x00007f09ef073000)
libtasn1.so.6 => /usr/lib/x86_64-linux-gnu/libtasn1.so.6
(0x00007f09eee60000)
libnettle.so.6 => /usr/lib/x86_64-linux-gnu/libnettle.so.6
(0x00007f09eee26000)
libhogweed.so.4 => /usr/lib/x86_64-linux-gnu/libhogweed.so.4
(0x00007f09eeded000)
libgmp.so.10 => /usr/lib/x86_64-linux-gnu/libgmp.so.10
(0x00007f09eed6a000)
libcap-ng.so.0 => /lib/x86_64-linux-gnu/libcap-ng.so.0
(0x00007f09eed62000)
libffi.so.6 => /usr/lib/x86_64-linux-gnu/libffi.so.6
(0x00007f09eed58000)
linux-vdso.so.1 (0x00007ffe9d860000)
libgssapi_krb5.so.2 => /usr/lib/x86_64-linux-gnu/libgssapi_krb5.so.2
(0x00007fb55fe4e000)
libcrypt.so.1 => /lib/x86_64-linux-gnu/libcrypt.so.1
(0x00007fb55fe14000)
libldap_r-2.4.so.2 => /usr/lib/x86_64-linux-gnu/libldap_r-2.4.so.2
(0x00007fb55fdc0000)
libssl.so.1.1 => /usr/lib/x86_64-linux-gnu/libssl.so.1.1
(0x00007fb55fd2f000)
libcrypto.so.1.1 => /usr/lib/x86_64-linux-gnu/libcrypto.so.1.1
(0x00007fb55fa45000)
libtinfo.so.6 => /lib/x86_64-linux-gnu/libtinfo.so.6
(0x00007fb55fa17000)
liblber-2.4.so.2 => /usr/lib/x86_64-linux-gnu/liblber-2.4.so.2
(0x00007fb55fa04000)
libkrb5.so.3 => /usr/lib/x86_64-linux-gnu/libkrb5.so.3
(0x00007fb55f924000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x00007fb55f903000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fb55f742000)
libk5crypto.so.3 => /usr/lib/x86_64-linux-gnu/libk5crypto.so.3
(0x00007fb55f70e000)
libcom_err.so.2 => /lib/x86_64-linux-gnu/libcom_err.so.2
(0x00007fb55f708000)
libkrb5support.so.0 => /usr/lib/x86_64-linux-gnu/libkrb5support.so.0
(0x00007fb55f6f7000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fb55f6f2000)
libkeyutils.so.1 => /lib/x86_64-linux-gnu/libkeyutils.so.1
(0x00007fb55f6eb000)
libresolv.so.2 => /lib/x86_64-linux-gnu/libresolv.so.2
(0x00007fb55f6d1000)
libsasl2.so.2 => /usr/lib/x86_64-linux-gnu/libsasl2.so.2
(0x00007fb55f6b4000)
libgnutls.so.30 => /usr/lib/x86_64-linux-gnu/libgnutls.so.30
(0x00007fb55f508000)
/lib64/ld-linux-x86-64.so.2 (0x00007fb5605dc000)
libp11-kit.so.0 => /usr/lib/x86_64-linux-gnu/libp11-kit.so.0
(0x00007fb55f3d7000)
libidn2.so.0 => /usr/lib/x86_64-linux-gnu/libidn2.so.0
(0x00007fb55f3b8000)
libunistring.so.2 => /usr/lib/x86_64-linux-gnu/libunistring.so.2
(0x00007fb55f234000)
libtasn1.so.6 => /usr/lib/x86_64-linux-gnu/libtasn1.so.6
(0x00007fb55f021000)
libnettle.so.6 => /usr/lib/x86_64-linux-gnu/libnettle.so.6
(0x00007fb55efe9000)
libhogweed.so.4 => /usr/lib/x86_64-linux-gnu/libhogweed.so.4
(0x00007fb55efae000)
libgmp.so.10 => /usr/lib/x86_64-linux-gnu/libgmp.so.10
(0x00007fb55ef2b000)
libffi.so.6 => /usr/lib/x86_64-linux-gnu/libffi.so.6
(0x00007fb55ef21000)
