Alt-F Icon



a free alternative firmware for the DLink DNS-320/320L/321/323/325

4.9 Stars (54)
4,029 Downloads (This Week)
Last Update:
Download README-0.1RC4.1.txt
Browse All Files



Alt-F provides a free alternative firmware for the DLINK DNS-320/320L/321/323/325.

Alt-F has Samba and NFS; supports ext2/3/4, VFAT, NTFS and ISO9660 filesystems; RAID 0, 1, 5 (with external USB disk) and JBOD; supports 2/3/4TB disks; rsync, ftp, sftp, ftps, ssh, lpd, DNS and DHCP servers, DDNS, fan and leds control, clean power up and down... and more.

Alt-F also has a set of comprehensive administering web pages, you don't need to use the command line to configure it.

Besides the built-in software, Alt-F also supports additional packages on disk, including ffp packages, that you can install, update and uninstall using the administering web pages

Alt-F is still beta and is being developed and tested on a DNS-323-rev-B1, a DNS325-rev-A1 and a DNS-320L-rev-A1 hardware boards. Other models and boards are said to work.

Discussion Forum:

Alt-F Web Site


User Ratings

ease 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
features 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
design 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
support 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
Write a Review

User Reviews

  • needahelp
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Hi I boughted NAS D-link DNS 320L, with one WD 3TB hdd, which I placed to slot 2. I have trouble with Alt-F-0.1RC4.1-DNS-320L-rev-A1A2A3 (1).bin. I connected to NAS and upgraded firmware. Then restart and then start my trouble. All diods ( for USB, DISK1 and DISK2 ) glows red, and active slots ( in my case USB and DISK 2 ) glows blue at the same time. When I tried login to DNS,via administrator,nothing happend, my browser after some time writes that the page is unavailable. Can you help me solve this problem, at least return to the original state. Thank you very much for your help.

    Posted 10/25/2015
  • iga566
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    good alt firmware

    Posted 10/11/2015
  • oceanx2k
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    it's a very good and stable project if you follow the installation guide step by step, it's fairly simple to setup all the necessary config before you will enjoy a brand new budget gigabit DNS with up to 3 HDD support. the speed before and after switch to Alt-F is about 4~6x speed jump... max out about 30-40MB/s =240~320Mbits.. over a gigabit lan. which is very good.. i would assume using ssd hdd will achieve higher speed.. though may also be capped by the DNS hardware itself (ram, cpu etc..) learn to use ssh commands to access the driver and you will also be able to transfer files to usb3 drives very quickly.. compared to over the gigabit lan.. wonder if there is a app that will allow testing of file transfer speed on alt-f? think there is.. just need to search a bit i guess

    Posted 10/01/2015
  • andice
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    I was about to scrap both my DLINK DNS-321 machines due to insufficient capacity. Thanks to the Alt-F project I can now drop in multiple 3TB or 4TB drives and extend their life. Interface is perfect and minimal. Speed is very good if not better than original DLINK firmware. Ease of install - Just Upload new firmware! In my case the hardware was A2. Worth following instructions. 15 minutes setup start to finish. A very useful project, and great service. THANK YOU ALT-F!

    Posted 09/16/2015
  • josepvr
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Cool! Works much better than the original FW. God job! EDIT: My nas: DNS-325

    Posted 09/13/2015
Read more reviews

Additional Project Details

Intended Audience

Information Technology, End Users/Desktop

User Interface