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1 | 1. Prerequisites |
| 2 | ---------------- |
| 3 | |
| 4 | You will need working installations of Zlib and OpenSSL. |
| 5 | |
| 6 | Zlib: |
| 7 | http://www.cdrom.com/pub/infozip/zlib/ |
| 8 | |
| 9 | OpenSSL: |
| 10 | http://www.openssl.org/ |
| 11 | |
| 12 | OpenSSH can utilise Pluggable Authentication Modules (PAM) if your system |
| 13 | supports it. PAM is standard on Redhat and Debian Linux and on Solaris. |
| 14 | |
| 15 | PAM: |
| 16 | http://www.kernel.org/pub/linux/libs/pam/ |
| 17 | |
| 18 | If you wish to build the GNOME passphrase requestor, you will need the GNOME |
| 19 | libraries and headers. |
| 20 | |
| 21 | GNOME: |
| 22 | http://www.gnome.org/ |
| 23 | |
| 24 | If you are planning to use OpenSSH on a Unix which lacks a Kernel random |
| 25 | number generator (/dev/urandom), you will need to install the Entropy |
| 26 | Gathering Daemon (or similar). You will also need to specify the |
| 27 | --with-egd-pool option to ./configure. |
| 28 | |
| 29 | EGD: |
| 30 | http://www.lothar.com/tech/crypto/ |
| 31 | |
| 32 | |
| 33 | 2. Building / Installation |
| 34 | -------------------------- |
| 35 | |
| 36 | To install OpenSSH with default options: |
| 37 | |
| 38 | ./configure |
| 39 | make |
| 40 | make install |
| 41 | |
| 42 | This will install the OpenSSH binaries in /usr/local/bin, configuration files |
| 43 | in /usr/local/etc, the server in /usr/local/sbin, etc. To specify a different |
| 44 | installation prefix, use the --prefix option to configure: |
| 45 | |
| 46 | ./configure --prefix=/opt |
| 47 | make |
| 48 | make install |
| 49 | |
| 50 | Will install OpenSSH in /opt/{bin,etc,lib,sbin}. You can also override |
| 51 | specific paths, for example: |
| 52 | |
| 53 | ./configure --prefix=/opt --sysconfdir=/etc/ssh |
| 54 | make |
| 55 | make install |
| 56 | |
| 57 | This will install the binaries in /opt/{bin,lib,sbin}, but will place the |
| 58 | configuration files in /etc/ssh. |
| 59 | |
| 60 | There are a few other options to the configure script: |
| 61 | |
| 62 | --enable-gnome-askpass will build the GNOME passphrase dialog. You need a |
| 63 | working installation of GNOME, including the development headers, for this |
| 64 | to work. |
| 65 | |
| 66 | --with-random=/some/file allows you to specify an alternate source of |
| 67 | random numbers (the default is /dev/urandom). Unless you are absolutly |
| 68 | sure of what you are doing, it is best to leave this alone. |
| 69 | |
| 70 | --with-egd-pool=/some/file allows you to enable Entropy Gathering Daemon |
| 71 | support and to specify a EGD pool socket. You will need to use this if your |
| 72 | Unix does not support the /dev/urandom device (or similar). |
| 73 | |
| 74 | |
| 75 | 3. Configuration |
| 76 | ---------------- |
| 77 | |
| 78 | The runtime configuration files are installed by in ${prefix}/etc or |
| 79 | whatever you specified as your --sysconfdir (/usr/local/etc by default). |
| 80 | |
| 81 | The default configuration should be instantly usable, though you should |
| 82 | review it to ensure that it matches your security requirements. |
| 83 | |
| 84 | For more information on configuration, please refer to the manual pages |
| 85 | for sshd, ssh and ssh-agent. |
| 86 | |
andersk / openssh.git / blame