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Asked: 2018-09-11 09:30:29 +0800 CST

How to stop using Anaconda's Version of OpenSSL

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I ran the following command:

sudo apt-get install --only-upgrade openssl

and the output was:

openssl is already the newest version (1.1.0g-2ubuntu4.1).

However, when I type openssl version -a into the terminal, the output is:

OpenSSL 1.0.2o  27 Mar 2018
built on: reproducible build, date unspecified
platform: linux-x86_64
options:  bn(64,64) rc4(16x,int) des(idx,cisc,16,int) idea(int) blowfish(idx) 
compiler: /tmp/build/80754af9/openssl_1522162531585/_build_env/bin/x86_64-conda_cos6-linux-gnu-cc -DNDEBUG -D_FORTIFY_SOURCE=2 -O2 -march=nocona -mtune=haswell -ftree-vectorize -fPIC -fstack-protector-strong -fno-plt -O2 -pipe -I/home/vedantroy/anaconda3/include -fdebug-prefix-map=/tmp/build/80754af9/openssl_1522162531585/work=/usr/local/src/conda/openssl-1.0.2o -fdebug-prefix-map=/home/vedantroy/anaconda3=/usr/local/src/conda-prefix -Wa,--noexecstack -I. -I.. -I../include  -fPIC -DOPENSSL_PIC -DOPENSSL_THREADS -D_REENTRANT -DDSO_DLFCN -DHAVE_DLFCN_H -m64 -DL_ENDIAN -O3 -Wall -DOPENSSL_IA32_SSE2 -DOPENSSL_BN_ASM_MONT -DOPENSSL_BN_ASM_MONT5 -DOPENSSL_BN_ASM_GF2m -DRC4_ASM -DSHA1_ASM -DSHA256_ASM -DSHA512_ASM -DMD5_ASM -DAES_ASM -DVPAES_ASM -DBSAES_ASM -DWHIRLPOOL_ASM -DGHASH_ASM -DECP_NISTZ256_ASM
OPENSSLDIR: "/home/vedantroy/anaconda3/ssl"

Furthermore, typing which openssl outputs: /home/vedantroy/anaconda3/bin/openssl.

It seems my system is using the conda installation of "openssl" instead of the one installed by apt-get. How do I force my system to use the version of "openssl" that is installed by apt-get?

command-line openssl 18.04 anaconda

4 Answers

  1. The openssl package installs an executable file called openssl as /usr/bin/openssl (see dpkg -L openssl).

    You have openssl installed as /home/vedantroy/anaconda3/bin/openssl.

    The directory /home/vedantroy/anaconda3/bin occurs in $PATH before /usr/bin appears.

    Your $SHELL picks the first openssl it sees.

    You have several choices:

    • Rearrange $PATH. However, if there are any other system binaries Anaconda wants to override, this will screw that up.
    • I assume that you own the directory /home/vedantroy/anaconda3/bin, so chmod -x /home/vedantroy/anaconda3/bin/openssl;rehash will let you use /usr/bin/openssl.
    • Add alias openssl="/usr/bin/openssl" to your ~/.bashrc. WIll only work for shells.
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  2. In your case I suggest creating an alias to apt installed version of openssl:

    alias openssl='/usr/bin/openssl'

    Put your alias somewhere which it gets sourced automatically like: .bashrc.

    You can also run it directly:

    /usr/bin/openssl

    Or change the PATH environment variable, which can't be a good option in your case because you are actually using Anaconda.

    Whenever you want to use Anaconda version then run one of these:

    \openssl
""openssl
''openssl
'openssl'
"openssl"
command openssl
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  3. Conda may be active by default in your shell, often the case for an anaconda installation on Ubuntu. There may be (base) at the beginning of your shell prompt.

    Simply running conda deactivate may fix the issue. It did for me.

    • 1

  4. Given the previous answers I tried the following things to resolve the issue.

    1. Adding an alias in .bashrc didn't work since the conda openssl was picked every time the .bashrc file was sourced. Still haven't figured out why that happened.

    2. Adding /usr/bin/openssl before anaconda in $PATH environment variable didn't work since it requires to specify the whole bin directory in $PATH not just the executable openssl. Adding /usr/bin directory to $PATH before /home/user/anaconda3/bin creates another issue for me since it causes the python version of system installation to take precedence over the anaconda python version something that I'm avoiding due to my setup.

    The following solution works if you want to have your default system wide openssl being picked up but at the same time using your anaconda python version as your default.

    In other words stop using anacondas' openssl while still maintaining the following env. variable export PATH="/home/user/anaconda3/bin:$PATH"

    The solution (at least for me) involves the use of symbolic links.

    mv ~/anaconda3/bin/openssl ~/anaconda3/bin/orig_openssl # rename anaconda openssl
ln -s /usr/bin/openssl /home/user/anaconda3/bin/openssl # link openssl from OS to anaconda bin dir.
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