Bdtyktl

I have installed curl-7.27.0 and it is working fine how ever it is not working is run below command to find whether it is now, but it showed that :

Result of the command curl -V

root@ubuntu:~/curl-7.27.0# curl -V


curl 7.21.6 (i686-pc-linux-gnu) libcurl/7.21.6 OpenSSL/1.0.0e zlib/1.2.3.4 libidn/1.22 librtmp/2.3

Protocols: dict file ftp ftps gopher http https imap imaps ldap pop3 pop3s rtmp rtsp smtp smtps telnet tftp

Features: GSS-Negotiate IDN IPv6 Largefile NTLM SSL libz

You have to compile curl with sftp support first.

Download and unpack the curl source. After that:

sudo apt-get install build-essential debhelper libssh2-1-dev

sudo apt-get source libcurl3

sudo apt-get build-dep libcurl3



cd curl-x.xx.x/debian



nano rules

find and replace "--without-libssh2" with "--with-libssh2"

cd ..



sudo dpkg-buildpackage



cd ..



sudo dpkg -i curl_xxxxx.deb

sudo dpkg -i libcurl3_xxxx.deb

sudo dpkg -i libcurl3-gnutls_xxxx.deb

Update the commands with the adequate versions, ofcourse. More info here.

If you can't find --without-libssh2 to replace with --with-libssh2 you can search for --without-ssl and append --with-libssh2, tested with curl Version 7.35.0 on Ubuntu 14.04.2

Customized answer from Frantique:

Download and unpack the curl source. After that:

sudo apt-get install build-essential debhelper libssh2-1-dev

sudo apt-get source libcurl3

sudo apt-get build-dep libcurl3



cd curl-*/debian



nano rules

Find --without-ssl and append --with-libssh2, in my case, it looks like this:

Before

cd debian/build && dh_auto_configure ${CONFIGURE_ARGS}          

        --with-ca-path=/etc/ssl/certs

cd debian/build-gnutls &&  dh_auto_configure ${CONFIGURE_ARGS}  

        --with-ca-bundle=/etc/ssl/certs/ca-certificates.crt     

        --without-ssl --with-gnutls

cd debian/build-nss && dh_auto_configure ${CONFIGURE_ARGS}      

        --with-ca-bundle=/etc/ssl/certs/ca-certificates.crt     

        --without-ssl --with-nss

After

cd debian/build && dh_auto_configure ${CONFIGURE_ARGS}          

        --with-ca-path=/etc/ssl/certs --with-libssh2

cd debian/build-gnutls &&  dh_auto_configure ${CONFIGURE_ARGS}  

        --with-ca-bundle=/etc/ssl/certs/ca-certificates.crt     

        --without-ssl --with-gnutls --with-libssh2

cd debian/build-nss && dh_auto_configure ${CONFIGURE_ARGS}      

        --with-ca-bundle=/etc/ssl/certs/ca-certificates.crt     

        --without-ssl --with-nss --with-libssh2

Now build the packages:

cd ..

sudo dpkg-buildpackage

cd ..



sudo dpkg -i curl_*.deb

sudo dpkg -i libcurl3_*.deb

sudo dpkg -i libcurl3-gnutls_*.deb

Here is another good tutorial for your issue.

More info on Frantique's answer.

Frantique's answer worked for me - however when I tried to upgrade my system, my package manager wanted to revert the installation back to a curl that does not have sftp/scp.

To avoid having to reinstall curl with sftp/scp after every upgrade:

sudo aptitude hold libcurl3

sudo aptitude hold libcurl3-gnutls

Use apt-mark if you use apt.

Read this page if you want more info on preventing updates of a specific package.

Note that eventually some future upgrade may not be able to go forward until you remove the hold.

If by chance you are using PHP and need sftp in curl - you should check out phpseclib which might be much easier to install and maintain.

Here is how to build curl with libssl support for Ubuntu 18.04. LTS:

sudo apt-get install build-essential debhelper libssh-dev

sudo apt-get source curl

sudo apt-get build-dep curl



cd curl-*

Download the Patch and patch the debian/rules:

wget https://bugs.launchpad.net/ubuntu/+source/curl/+bug/311029/+attachment/5234644/+files/ubuntu_libssl.patch

sudo patch debian/rules < /ubuntu_libssl.patch

• 
  

  Or alternativ replace in the file the debian/rules:

  
  
  

  CONFIGURE_ARGS += --without-libssh2` 
  
  

  
  
  

  with

  
  
  

  CONFIGURE_ARGS += --with-libssh2
  
  

  
  

Then build and install the packages:

sudo dpkg-buildpackage -uc -us

# -us Do not sign the source package.

# -uc Do not sign the .changes file.



cd ..



sudo dpkg -i curl_*.deb

sudo dpkg -i libcurl3-*.deb

sudo dpkg -i libcurl3-gnutls_*.deb



sudo apt-mark hold curl

sudo apt-mark hold libcurl3

sudo apt-mark hold libcurl3-gnutls

# sudo apt-mark unhold <package-name>

Hope that helps somebody.