# Compiling and installing Gophernicus Gophernicus requires a C compiler but no extra libraries aside from standard LIBC ones. Care has been taken to use only standard POSIX syscalls so that it should work pretty much on any \*nix system. Please make sure that you checkout to the correct version you want. Currently, you most likely want version 3.0.1. To compile and install run: ``` $ git clone -b 3.0.1 https://github.com/gophernicus/gophernicus.git $ cd gophernicus $ make $ sudo make install ``` after having set the correct public hostname in the `gophernicus.env` file. If this is wrong, selectors ("gopher links") won't work! On \*nix systems, `hostname` might give you an idea, but please note this might be completely wrong, especially on your personal machine at home or on some cheap virtual server. If you know you have a fixed numerical IP, you can also directly use that. For testing, just keep the default value of `localhost` which will result in selectors working only when you're connecting locally. That's it - Gophernicus should now be installed, preconfigured and running under gopher:///. And more often than not, It Just Works(tm). By default Gophernicus serves gopher documents from `/var/gopher` although that can be changed by using the `-r ` parameter. To enable virtual hosting create hostname directories under the gopher root and make sure you have at least the primary hostname (the one set with `-h `) directory available (`mkdir /var/gopher/$HOSTNAME`). ## Dependencies These were obtained from a base docker installation. ### Ubuntu 18.04, 16.04, Debian Sid, Buster, Stretch, Jessie - build-essential - git - libwrap0-dev for tcp - fakeroot ### Centos 6, 7 - the group 'Development Tools'. less is probably required, but I know this works and couldn't be bothered to find out what was actually required. ### Fedora 29, 30, rawhide - the group 'Development Tools'. less is probably required, but I know this works and couldn't be bothered to find out what was actually required. - net-tools ### OpenSuse Leap, Tumbleweed - the pattern devel_C_C++ - the pattern devel_basis - git ### archlinux - base-devel - git ### Gentoo - git ### Alpine Linux - alpine-sdk. once again, less is probably required.. blah blah. ### Other installation targets Suppose your server runs systemd, but you'd rather have Gophernicus started with inetd or xinetd. To do that, do `make install-inetd` or `make install-xinetd`. Likewise use `make uninstall-inetd` or `make uninstall-xinetd` to uninstall Gophernicus. ## Compiling with TCP wrappers Gophernicus uses no extra libraries... well... except libwrap (TCP wrappers) if it is installed with headers in default Unix directories at the time of compiling. If you have the headers installed and don't want wrapper support, run 'make generic' instead of just 'make', and if you have wrappers installed in non-standard place and want to force compile with wrappers just run 'make withwrap'. For configuring IP access lists with TCP wrappers, take a look at the files `/etc/hosts.allow` and `/etc/hosts.deny` (because the manual pages suck). Use the daemon name "gophernicus" to make your access lists. ## Running with traditional inetd superserver If you want to run Gophernicus under the traditional Unix inetd, the below line should be added to your `/etc/inetd.conf` and the inetd process restarted. ``` gopher stream tcp nowait nobody /usr/sbin/gophernicus gophernicus -h ``` The Makefile will automatically do this for you and remove it when uninstalling. ## Compiling on Debian Linux (and Ubuntu) The above commands work on Debian just fine, but if you prefer having everything installed as packages run `make deb` instead of plain `make`. If all the dependencies were in place you'll end up with an offical-looking deb package in the parent directory (don't ask - that's just how it works). And instead of `sudo make install` you should just install the deb with `dpkg -i ../gophernicus_*.deb` after which It Should Just Work(tm). If you need TCP wrappers support on Debian/Ubuntu, please install libwrap0-dev before compiling. ## Cross-compiling Cross-compiling to a different target architecture can be done by defining HOSTCC and CC to be different compilers. HOSTCC must point to a local arch compiler, and CC to the target arch one. ``` $ make HOSTCC=gcc CC=target-arch-gcc ``` ## Shared memory issues Gophernicus uses SYSV shared memory for session tracking and statistics. It creates the shared memory block using mode 600 and a predefined key which means that a shared memory block created with one user cannot be used by another user. Simply said, running gophernicus under various different user accounts may create a situation where the memory block is locked to the wrong user. If that happens you can simply delete the memory block and let Gophernicus recreate it - no harm done: ``` $ sudo make clean-shm ``` ## Porting to different platforms If you need to port Gophernicus to a new platform, please take a look at gophernicus.h which has a bunch of `#define HAVE_...` Fiddling with those usually makes it possible to compile a working server. If you succeed in compiling Gophernicus to a new platform please send the patches to so we can include them into the next release -- or even better, commit them to your fork on Github and make a pull request! ## Supported Platforms | Platform | Versions | | ------------ | ---------------------------- | | Ubuntu | 18.04, 16.04 | | Debian | Sid, Buster, Stretch, Jessie | | Centos | 7, 6 | | Fedora | 29, 30, Rawhide | | Opensuse | Leap, Tumbleweed | | Arch Linux | up to date | | Gentoo | up to date | | Alpine Linux | Edge, 3.9 | | FreeBSD | 12.0 | | Darwin (Mac) | OSX 10.7 |