Web and Mail server management software
Web and Mail server management software
AlternC works well with Linux Debian distribution, either Wheezy, Jessie (or Stretch as a pre-release).
To install AlternC, you’ll need:
#includedir /etc/sudoers.dis present in
/etc/sudoerswith the command
To install AlternC with just a few questions, use the easy-install, a shell-script that installs everything quickly
You can also install AlternC manually thanks to the documentation below:
AlternC depends on ACLs to manage user rights for the web folders. You need to ensure your filesystems didn’t disable ACL in the partition that will contain your user data. If necessary, look at
/etc/fstab and remove any noacl (for ext3/4) or noattr2 (for xfs). As an example, this is bad:
/dev/md1 / ext4 auto,relatime,noacl 0 0
On most recent (post-2012) systems, ACL is enabled by default.
AlternC can also manage disk quotas for each user. As opposed to ACLs, quotas are not mandatory for AlternC to work. If they are not enabled or installed, AlternC will consider that each user has unlimited web space. To enable the quotas, install the quota package:
apt-get install quota
/etc/fstab again to enable them:
/dev/md1 / ext4 acl,grpquota,errors=remount-ro 0 0
Note that some virtualization or containerization systems don’t allow you to change fstab, or need to change it from the host system. Ask your hosting provider in that case.
Then, you need to remount the partition that will contain the user data (in this example, /) with:
mount -o remount,acl,grpquota /
To run AlternC, you need a MySQL server. You can host it on the same machine by using the following command:
apt-get install mysql-server
WARNING : Enter an administrator password and REMEMBER IT, you’ll need it during AlternC install.
You can store this password in a file named
/root/.my.cnf, with the lines below, that will allow you to connect to your MySQL server by just typing the
password=<your MySQL administrator password>
To install AlternC on a server, you need a text editor to add our repository to your repository list:
deb http://debian.alternc.org/ jessie main
Of course, replace “jessie” by the version of Debian you are using (Squeeze, Wheezy, Jessie, Stretch available as of today)
put it in the
The Debian packages are digitally signed. Before launching apt-get update, you need to add the pgp key of our repository to your server with the following command:
wget https://debian.alternc.org/key.txt -O - | apt-key add -
It’s a PGP key owned and maintained by the team of developers at AlternC, who have the right to write into our repository at debian.alternc.org.
Then, update your package list for apt with:
Then you need to install AlternC (don’t forget the post install process later on):
apt-get install alternc alternc-ssl alternc-api
You can add auxiliary packages of AlternC:
alternc-mailmanto manage discussion and mailing lists with Mailman,
alternc-roundcubeto use a webmail with Roundcube,
alternc-awstatsto generate web statistics of your websites with Awstats,
or other AlternC’s plugins
The name servers aim is to distribute the information on the domain names installed in your server. You need two different name servers. If you need a secondary name server, AlternC offers you one for free on alternc.net. In that case, you can enter:
If you have your own name servers, enter them here. (Usually, the primary is your own server’s domain name)
Warning: if you have a domain name you want to use to host a website, don’t enter it here, because the domain name you enter here will allow you to access your AlternC control panel.
Use another name pointing to your machine, or a subdomain like
As an example, if your server has the IP 188.8.131.52 and you have the domain example.com for your personal website, don’t enter example.com, but either the IP address, or panel.example.com, or the domain name provided by your hosting provider, such as server234215.bighostingprovider.net
During the install process, Debian ask you to configure PhpMyAdmin. You can let it do it. It will ask you for the password of the MySQL administrator account to install its database. However, AlternC will change some of those parameters later on.
Choose “Internet Site”, then follow the instructions, one of them being the fully qualified domain name of your server (see above)
Once the installation of the package is done, the script
alternc.install must be launched. It will generate configuration files for your server to make AlternC work.
If you want to install an SSL/TLS certificate for your panel (that will also be used by Dovecot, Proftpd, Postfix etc.) we recommend you to use LetsEncrypt and to configure your certificate.
You can now access your AlternC Panel on the domain name or IP address you entered. You should see a login page whose default access that you need to change at once is:
Don’t forget to change your administrator password by going to the “Manage AlternC account” menu!