# DragonFly Config File Support in v1.34.2 - Equivalent to Redis

**URL:** <https://dragonfly.discourse.group/t/dragonfly-config-file-support-in-v1-34-2-equivalent-to-redis/314>\
**Category:** Dragonfly Technical\
**Created:** [October 23, 2025, 7:12pm UTC](https://dragonfly.discourse.group/t/dragonfly-config-file-support-in-v1-34-2-equivalent-to-redis/314 "2025-10-23T19:12:56Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![thangaprakash](https://avatars.discourse-cdn.com/v4/letter/t/ec9cab/32.png) [@thangaprakash](https://dragonfly.discourse.group/u/thangaprakash)\
**Post date:** [October 23, 2025, 7:12pm UTC](https://dragonfly.discourse.group/t/dragonfly-config-file-support-in-v1-34-2-equivalent-to-redis/314/1 "2025-10-23T19:12:56Z")

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Starting journey with DragonFly version 1.34.2 …

I am unable to provide dragonfly.conf (as that of redis) while starting the dragonfly service. (linux)

I am able to provide “-–flagfile flags.conf” but it doesn’t support all properties similar to redis.

[root@ip-172-31-0-22 ~]# /dragonFly/dragonfly --flagfile /etc/dragonfly/dragonfly\_flags.conf  
ERROR: Unknown command line flag ‘announce-ip’  
ERROR: Unknown command line flag ‘announce-port’  
ERROR: Unknown command line flag ‘databases’  
ERROR: Unknown command line flag ‘loglevel’  
ERROR: Unknown command line flag ‘maxmemory-policy’  
ERROR: Unknown command line flag ‘notify-keyspace-events’  
ERROR: Unknown command line flag ‘protected-mode’  
ERROR: Unknown command line flag ‘save’  
ERROR: Unknown command line flag ‘save’  
ERROR: Unknown command line flag ‘save’  
ERROR: Unknown command line flag ‘slowlog-log-slower-than’  
ERROR: Unknown command line flag ‘slowlog-max-len’  
ERROR: Unknown command line flag ‘tcp-keepalive’

Content of “Flags.conf”

–announce-ip=172.Y.x.x  
–announce-port=6379  
–bind=172.Y.x.x  
–bind=127.0.0.1  
–databases=16  
–dbfilename=dump.rdb  
–dir=/dragonFly/dragondata/data  
–log\_dir=/dragonFly/var/log/dragonfly  
–loglevel=notice  
–maxmemory=20GB  
–maxmemory-policy=noeviction  
–notify-keyspace-events=“”  
–port=6379  
–protected-mode=no  
–save=300 10  
–save=60 10000  
–save=900 1  
–slowlog-log-slower-than=10000  
–slowlog-max-len=128  
–tcp-keepalive=300  
–tiered\_prefix=/dragonFly/dragondata/ssd

Please guide for the right documentation.

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**Author:** ![joezhou\_df](https://yyz2.discourse-cdn.com/flex004/user_avatar/dragonfly.discourse.group/joezhou_df/32/82_2.png) [@joezhou\_df](https://dragonfly.discourse.group/u/joezhou_df)\
**Post date:** [October 23, 2025, 8:38pm UTC](https://dragonfly.discourse.group/t/dragonfly-config-file-support-in-v1-34-2-equivalent-to-redis/314/2 "2025-10-23T20:38:10Z")

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Hi @thangaprakash,

Sorry for the confusion. Dragonfly doesn’t support exactly the same configuration options Redis does. Due to the architectural design differences, we need a different set of configs. They can all be found here: [Server Configuration Flags | Dragonfly](https://www.dragonflydb.io/docs/managing-dragonfly/flags)

For example, we use a cron string to save backups periodically:

```auto
--snapshot_cron="*/5 * * * *"

```

To streamline the experience of using CLI, environment variables, or a flagfile, I believe that all options should use `_` instead of `-`, so it should be `--slowlog_log_slower_than` for Dragonfly.

Also, we don’t have 8 maxmemory eviction policies. If you want eviction, simply pass:

```auto
--cache_mode=true

```

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<div class="post-metadata">

**Author:** ![thangaprakash](https://avatars.discourse-cdn.com/v4/letter/t/ec9cab/32.png) [@thangaprakash](https://dragonfly.discourse.group/u/thangaprakash)\
**Post date:** [October 27, 2025, 8:04pm UTC](https://dragonfly.discourse.group/t/dragonfly-config-file-support-in-v1-34-2-equivalent-to-redis/314/3 "2025-10-27T20:04:43Z")

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thanks @joezhou_df for guidence.

.