In this post, I will describe how to check out the most recent openssh sources from the git repository and compile.
First, let's install necessary packages,
$ sudo apt-get install -y git autoconf libssl-dev zlib1g-dev
To clone from the git repository,
$ git clone git://anongit.mindrot.org/openssh.git
Next, go into the directory and read the instruction.
$ cd openssh
$ less INSTALL
Now that you are familiar with the instruction, let's go on. Create the configure file
$ autoreconf
Create the build directory and enter
$ mkdir build && cd build
Configure
$ ../configure
Make
$ make -j 2
Here, I am utilizing two cores, so the number 2 after -j option, but if you have an quad-core processor, you may want to use -j 4 option instead.
That's it. Let's verify that it is successful.
$./ssh -V
$ ssh -V
The two should output different!
This was helpful, but I'm trying to find correct instructions for building something which matches the distribution, as a reference point before I start modifying. The output ssh executable from following this post has a file size of 2,810,544, the size of the distribution ssh executable is 727,920.
ReplyDeleteMake install must remove the debugging information, after that this build is size 707,272. Much closer to expected, but still doesn't match the distribution.
DeleteWhich distribution version are you trying to build? You will need to check out the corresponding source code. Try the following in the openssh directory
Delete$ git branch
$ git checkout V_x_y
and compile again.