|English • Русский||v0.11 for GNU/Linux|
freedns-afraid is a dynamic DNS client or updater: a daemon for GNU/Linux with systemd and NetworkManager, which keeps your record on free dynamic DNS server freedns.afraid.org up-to-date. There are prebuilt RPM packages for Fedora and EPEL1. Source code for traditional procedure
make install is also available. freedns-afraid is free software.
Nowadays Internet Service Providers (ISPs) assign your home computer an IP address dynamically via DHCP. This eliminates configuration burden but makes difficult to access your home computer from office or school, because your home computer does not have a name while IP address cannot be used due to its dynamic nature. (Some ISPs offer static IP address as an extra service for extra money.)
Steps from 1 to 3 should be done once. But step 4 should be performed every time your computer receives new IP address from your ISP. It is a job for a dynamic DNS client, and freedns-afraid is one of clients.
What is good in freedns-afraid:
What is not so good (but not so bad):
Depending on your web browser a click on a link in the table may cause either downloading or installing a package. You may have to right-click on a link and choose Save Link As… to download a package.
If you work in modern graphical environment, choose appropriate binary RPM package from the table below and click on the selected link. Depending on your web browser, it may either initiate installing or ask your for desired action. In latter case, choose Open (not Save) to install (likely you will be prompted for root password then).
|Fedora 19||binary RPM package||binary RPM package|
|Fedora 20||binary RPM package||binary RPM package|
|Fedora 21||binary RPM package||binary RPM package|
|EPEL 7||—||binary RPM package|
# yum install https://copr-be.cloud.fedoraproject.org/results/vandebugger/packages/REPO-VER-ARCH/\ freedns-afraid-0.11-1/freedns-afraid-0.11-1.noarch.rpm
You have to replace placeholders
ARCH with appropriate values, for example:
epel-7-x86_64. Alternatively, you may copy and paste a link target from the table above.
dnf4 can be used also, just type
dnf instead of
freedns-afraid requires some more packages, all them are available in Fedora repositories. Packet manager, either yum or dnf, will resolve dependencies and offer to download all the required packages.
Do not forget to read section Security.
The service configuration file is
/etc/freedns-afraid.conf. The file contains two configuration variables:
Your identification string. This is a mandatory variable, you have to specify your hash to let freedns-afraid update your DNS record. See section Hash below.
Interval between updates, in minutes. This is optional; by default freedns-afraid updates your DNS record every 15 minutes. Do not specify too short interval, avoid disturbing freedns.afraid.org too frequently: regardless of the specified interval your record is updated as soon as your computer connects to the internet and/or its IP address is changed.
First, you have to complete registration at freedns.afraid.org. Then, open start page of freedns.afraid.org in a web browser, click on Dynamic DNS item in the menu on the left (log in if you are not logged in yet), and find Direct URL link. Check the link target, it looks like
Everything after question mark is your hash. This string identifies you at freedns.afraid.org. Copy it (hash only, not entire URL) to the configuration file. Do not forget to update hash in the configuration file each time you change your password at freedns.afraid.org.
# systemctl enable freedns-afraid
If you want freedns-afraid to start immediately, run:
# systemctl start freedns-afraid
freedns-afraid daemon runs as specially created no-login account
freedns-afraid. This user has no special privileges. In particular, it cannot change files under
/etc, it cannot even read files in your home directory.
Treat your hash as a secret, like your password. Everybody who knows your hash can modify your DNS record and phish you: you may think you are remotely logging into your computer and enter login and password, while you disclosed your credentials to a phishing system.
freedns-afraid does following steps to protect your hash:
/etc/freedns-afraid.conf belongs to user root and group
freedns-afraid. The file is readable and writable by root and only readable by
freedns-afraid. Other users have no access to the file. Keep the file ownership and modes, do not reset them accidentally.
If you using another dynamic DNS client, make sure it keeps your hash (or password) secretly.
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Copyright (C) 2010—2014 Van de Bugger.
freedns-afraid is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
freedns-afraid is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with freedns-afraid. If not, see http://www.gnu.org/licenses/.