mirror of
https://gitlab.com/openconnect/ocserv.git
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114 lines
3.1 KiB
Markdown
114 lines
3.1 KiB
Markdown
[](https://ci.gitlab.com/projects/7712?ref=master)
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# About
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This program is openconnect VPN server (ocserv), a server for the
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[openconnect VPN client](http://www.infradead.org/openconnect/).
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It follows the [openconnect protocol](https://github.com/openconnect/protocol)
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and is believed to be compatible with CISCO's AnyConnect SSL VPN.
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# Build dependencies
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Required dependencies (Debian pkg/Fedora pkg):
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```
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libgnutls28-dev / gnutls-devel
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```
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Optional dependencies that enable specific functionality:
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```
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TCP wrappers: libwrap0-dev / tcp_wrappers-devel
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PAM: libpam0g-dev / pam-devel
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LZ4: liblz4-dev / lz4-devel
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seccomp: libseccomp-dev / libseccomp-devel
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occtl: libreadline-dev / readline-devel
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libnl-route-3-dev / libnl3-devel
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GSSAPI: libkrb5-dev / krb5-devel
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```
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Dependencies for development, or dependencies that can be skipped
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in an embedded system (e.g., because a replacement library is included):
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```
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libprotobuf-c0-dev / protobuf-c-devel
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libtalloc-dev / libtalloc-devel
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libhttp-parser-dev / http-parser-devel
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libpcl1-dev / pcllib-devel
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libopts25-dev / autogen-libopts-devel
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autogen / autogen
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protobuf-c-compiler/ protobuf-c
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gperf / gperf
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```
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See [README-radius](doc/README-radius.md) for more information on Radius
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dependencies and its configuration.
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# Build instructions
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To build from a distributed release use:
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```
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$ ./configure && make
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```
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When cross compiling it may be useful to add the --enable-local-libopts
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option to configure.
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To build from the git repository use:
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```
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$ autoreconf -fvi
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$ ./configure && make
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```
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In addition to the prerequisites listed above, building from git requires
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the following packages: autoconf, automake, autogen, git2cl, and xz.
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Note that the system's autogen version must match the included libopts
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version on the development system, if the included libopts library is to
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be used.
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# Basic installation instructions
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Now you need to generate a certificate. E.g.
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```
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$ certtool --generate-privkey > ./test-key.pem
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$ certtool --generate-self-signed --load-privkey test-key.pem --outfile test-cert.pem
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```
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(make sure you enable encryption or signing)
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To run the server on the foreground edit the [sample.config](doc/sample.config) and then run:
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```
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# cd doc && ../src/ocserv -f -c sample.config
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```
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# Configuration
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Several configuration instruction are available in [the recipes repository](https://github.com/openconnect/recipes).
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# Profiling
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If you use ocserv on a server with significant load and you'd like to help
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improve it, you may help by sending profiling information. That includes
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the bottlenecks in software, so future optimizations could be spent on the
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real needs.
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In a Linux system you can profile ocserv using the following command.
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```
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# perf record -g ocserv
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```
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After the server is terminated, the output is placed in perf.data.
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You may examine the output using:
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```
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# perf report
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```
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# How the VPN works
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Please see the [technical description page](http://www.infradead.org/ocserv/technical.html).
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