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下载地址 OpenSSH 官方安装步骤在最后 /lib/systemd/system/ssh.service [Unit] Description=OpenBSD Secure Shell server Documentation=man:sshd(8) man:sshd_config(5) After=network.target auditd.service ConditionPathExists=!/etc/ssh/sshd_not_to_be_run [Service] EnvironmentFile=-/etc/default/ssh ExecStartPre=/usr/local/sbin/sshd -t ExecStart=/usr/local/sbin/sshd -D $SSHD_OPTS ExecReload=/usr/local/sbin/sshd -t ExecReload=/bin/kill -HUP $MAINPID KillMode=process Restart=on-failure RestartPreventExitStatus=255 Type=notify RuntimeDirectory=sshd RuntimeDirectoryMode=0755 [Install] WantedBy=multi-user.target Alias=sshd.service 测试: ./poc 172.19.157.208 22 - hosts: 172.23.5.191 tasks: - name: Copy openssh tarball to remote host copy: src: /data/ansible/ssh/openssh-9.8p1.tar.gz dest: /tmp/ - name: Extract openssh tarball unarchive: src: /tmp/openssh-9.8p1.tar.gz dest: /tmp/ remote_src: yes - name: Configure openssh command: ./configure args: chdir: /tmp/openssh-9.8p1 - name: Compile openssh command: make args: chdir: /tmp/openssh-9.8p1 - name: Install openssh command: make install args: chdir: /tmp/openssh-9.8p1 - name: Copy ssh.service file to remote servers hosts: - test - stage tasks: - name: Copy ssh.service file copy: src: /data/ansible/ssh/ssh.service dest: /lib/systemd/system/ssh.service owner: root group: root mode: '0644' become: yes - name: Copy sshd_config file copy: src: /data/ansible/ssh/sshd_config dest: /usr/local/etc/sshd_config owner: root group: root mode: '0644' become: yes - name: Restart SSH service systemd: name: sshd state: restarted daemon_reload: yes become: yes 1. Prerequisites ---------------- A C compiler. Any C89 or better compiler that supports variadic macros should work. Where supported, configure will attempt to enable the compiler's run-time integrity checking options. Some notes about specific compilers: - clang: -ftrapv and -sanitize=integer require the compiler-rt runtime (CC=clang LDFLAGS=--rtlib=compiler-rt ./configure) To support Privilege Separation (which is now required) you will need to create the user, group and directory used by sshd for privilege separation. See README.privsep for details. The remaining items are optional. A working installation of zlib: Zlib 1.1.4 or 1.2.1.2 or greater (earlier 1.2.x versions have problems): https://zlib.net/ libcrypto from either of LibreSSL or OpenSSL. Building without libcrypto is supported but severely restricts the available ciphers and algorithms. - LibreSSL (https://www.libressl.org/) 3.1.0 or greater - OpenSSL (https://www.openssl.org) 1.1.1 or greater LibreSSL/OpenSSL should be compiled as a position-independent library (i.e. -fPIC, eg by configuring OpenSSL as "./config [options] -fPIC" or LibreSSL as "CFLAGS=-fPIC ./configure") otherwise OpenSSH will not be able to link with it. If you must use a non-position-independent libcrypto, then you may need to configure OpenSSH --without-pie. If you build either from source, running the OpenSSL self-test ("make tests") or the LibreSSL equivalent ("make check") and ensuring that all tests pass is strongly recommended. NB. If you operating system supports /dev/random, you should configure libcrypto (LibreSSL/OpenSSL) to use it. OpenSSH relies on libcrypto's direct support of /dev/random, or failing that, either prngd or egd. PRNGD: If your system lacks kernel-based random collection, the use of Lutz Jaenicke's PRNGd is recommended. It requires that libcrypto be configured to support it. http://prngd.sourceforge.net/ EGD: The Entropy Gathering Daemon (EGD) supports the same interface as prngd. It also supported only if libcrypto is configured to support it. http://egd.sourceforge.net/ PAM: OpenSSH can utilise Pluggable Authentication Modules (PAM) if your system supports it. PAM is standard most Linux distributions, Solaris, HP-UX 11, AIX >= 5.2, FreeBSD, NetBSD and Mac OS X. Information about the various PAM implementations are available: Solaris PAM: http://www.sun.com/software/solaris/pam/ Linux PAM: http://www.kernel.org/pub/linux/libs/pam/ OpenPAM: http://www.openpam.org/ If you wish to build the GNOME passphrase requester, you will need the GNOME libraries and headers. GNOME: http://www.gnome.org/ Alternatively, Jim Knoble <jmknoble@pobox.com> has written an excellent X11 passphrase requester. This is maintained separately at: http://www.jmknoble.net/software/x11-ssh-askpass/ LibEdit: sftp supports command-line editing via NetBSD's libedit. If your platform has it available natively you can use that, alternatively you might try these multi-platform ports: http://www.thrysoee.dk/editline/ http://sourceforge.net/projects/libedit/ LDNS: LDNS is a DNS BSD-licensed resolver library which supports DNSSEC. http://nlnetlabs.nl/projects/ldns/ Autoconf: If you modify configure.ac or configure doesn't exist (eg if you checked the code out of git yourself) then you will need autoconf-2.69 and automake-1.16.1 to rebuild the automatically generated files by running "autoreconf". Earlier versions may also work but this is not guaranteed. http://www.gnu.org/software/autoconf/ http://www.gnu.org/software/automake/ Basic Security Module (BSM): Native BSM support is known to exist in Solaris from at least 2.5.1, FreeBSD 6.1 and OS X. Alternatively, you may use the OpenBSM implementation (http://www.openbsm.org). makedepend: https://www.x.org/archive/individual/util/ If you are making significant changes to the code you may need to rebuild the dependency (.depend) file using "make depend", which requires the "makedepend" tool from the X11 distribution. libfido2: libfido2 allows the use of hardware security keys over USB. libfido2 in turn depends on libcbor. libfido2 >= 1.5.0 is strongly recommended. Limited functionality is possible with earlier libfido2 versions. https://github.com/Yubico/libfido2 https://github.com/pjk/libcbor 2. Building / Installation -------------------------- To install OpenSSH with default options: ./configure make make install This will install the OpenSSH binaries in /usr/local/bin, configuration files in /usr/local/etc, the server in /usr/local/sbin, etc. To specify a different installation prefix, use the --prefix option to configure: ./configure --prefix=/opt make make install Will install OpenSSH in /opt/{bin,etc,lib,sbin}. You can also override specific paths, for example: ./configure --prefix=/opt --sysconfdir=/etc/ssh make make install This will install the binaries in /opt/{bin,lib,sbin}, but will place the configuration files in /etc/ssh. If you are using PAM, you may need to manually install a PAM control file as "/etc/pam.d/sshd" (or wherever your system prefers to keep them). Note that the service name used to start PAM is __progname, which is the basename of the path of your sshd (e.g., the service name for /usr/sbin/osshd will be osshd). If you have renamed your sshd executable, your PAM configuration may need to be modified. A generic PAM configuration is included as "contrib/sshd.pam.generic", you may need to edit it before using it on your system. If you are using a recent version of Red Hat Linux, the config file in contrib/redhat/sshd.pam should be more useful. Failure to install a valid PAM file may result in an inability to use password authentication. On HP-UX 11 and Solaris, the standard /etc/pam.conf configuration will work with sshd (sshd will match the other service name). There are a few other options to the configure script: --with-audit=[module] enable additional auditing via the specified module. Currently, drivers for "debug" (additional info via syslog) and "bsm" (Sun's Basic Security Module) are supported. --with-pam enables PAM support. If PAM support is compiled in, it must also be enabled in sshd_config (refer to the UsePAM directive). --with-prngd-socket=/some/file allows you to enable EGD or PRNGD support and to specify a PRNGd socket. Use this if your Unix lacks /dev/random. --with-prngd-port=portnum allows you to enable EGD or PRNGD support and to specify a EGD localhost TCP port. Use this if your Unix lacks /dev/random. --with-lastlog=FILE will specify the location of the lastlog file. ./configure searches a few locations for lastlog, but may not find it if lastlog is installed in a different place. --without-lastlog will disable lastlog support entirely. --with-osfsia, --without-osfsia will enable or disable OSF1's Security Integration Architecture. The default for OSF1 machines is enable. --with-utmpx enables utmpx support. utmpx support is automatic for some platforms. --without-shadow disables shadow password support. --with-ipaddr-display forces the use of a numeric IP address in the $DISPLAY environment variable. Some broken systems need this. --with-default-path=PATH allows you to specify a default $PATH for sessions started by sshd. This replaces the standard path entirely. --with-pid-dir=PATH specifies the directory in which the sshd.pid file is created. --with-xauth=PATH specifies the location of the xauth binary --with-ssl-dir=DIR allows you to specify where your Libre/OpenSSL libraries are installed. --with-ssl-engine enables Libre/OpenSSL's (hardware) ENGINE support --without-openssl builds without using OpenSSL. Only a subset of ciphers and algorithms are supported in this configuration. --without-zlib builds without zlib. This disables the Compression option. --with-4in6 Check for IPv4 in IPv6 mapped addresses and convert them to real (AF_INET) IPv4 addresses. Works around some quirks on Linux. If you need to pass special options to the compiler or linker, you can specify these as environment variables before running ./configure. For example: CC="/usr/foo/cc" CFLAGS="-O" LDFLAGS="-s" LIBS="-lrubbish" ./configure 3. Configuration ---------------- The runtime configuration files are installed by in ${prefix}/etc or whatever you specified as your --sysconfdir (/usr/local/etc by default). The default configuration should be instantly usable, though you should review it to ensure that it matches your security requirements. To generate a host key, run "make host-key". Alternately you can do so manually using the following commands: ssh-keygen -t [type] -f /etc/ssh/ssh_host_key -N "" for each of the types you wish to generate (rsa, dsa or ecdsa) or ssh-keygen -A to generate keys for all supported types. Replacing /etc/ssh with the correct path to the configuration directory. (${prefix}/etc or whatever you specified with --sysconfdir during configuration). If you have configured OpenSSH with EGD/prngd support, ensure that EGD or prngd is running and has collected some entropy first. For more information on configuration, please refer to the manual pages for sshd, ssh and ssh-agent. 4. (Optional) Send survey ------------------------- $ make survey [check the contents of the file "survey" to ensure there's no information that you consider sensitive] $ make send-survey This will send configuration information for the currently configured host to a survey address. This will help determine which configurations are actually in use, and what valid combinations of configure options exist. The raw data is available only to the OpenSSH developers, however summary data may be published. 5. Problems? ------------ If you experience problems compiling, installing or running OpenSSH, please refer to the "reporting bugs" section of the webpage at https://www.openssh.com/
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