# Running TCP DNS server? **URL:** \ **Category:** General\ **Created:** [February 15, 2021, 8:46am UTC](https://community.fly.io/t/running-tcp-dns-server/757 "2021-02-15T08:46:31Z")\ **Posts on this page:** 1\ **Showing post:** 26
**Author:** ![amithm7](https://sea1.discourse-cdn.com/fly1/user_avatar/community.fly.io/amithm7/32/1499_2.png) [@amithm7](https://community.fly.io/u/amithm7)\ **Post date:** [November 28, 2021, 10:10am UTC](https://community.fly.io/t/running-tcp-dns-server/757/26 "2021-11-28T10:10:59Z")
Is this port `853` not available in all regions? Port are mapped like so: ```auto Services PROTOCOL PORTS TCP 443 => 8080 [] TCP 853 => 10000 [] ``` I’m having trouble with deploying to all regions and with autoscaling: > [@How to disable count scaling, to enable autoscaling?](https://community.fly.io/t/how-to-disable-count-scaling-to-enable-autoscaling/3241): > > I would like to deploy an app, with minimum 4 VMs running (in different regions) according to traffic. So, from what was default, enabled autoscaling like flyctl autoscale balanced min=4 max=20 -a \. This had no effect whatsoever. Here is the configuration at this point: ❯ flyctl scale show -a \ VM Resources for \ VM Size: shared-cpu-1x VM Memory: 256 MB Count: main\_process=1 Max Per Region: main\_process=0 app=0 ❯ flyctl autoscale show -a \… > [@How long does it take for autoscaling to take effect?](https://community.fly.io/t/how-long-does-it-take-for-autoscaling-to-take-effect/3245): > > Changing autoscaling doesn’t deploy more than 3 instances. It has been marked in\_progress in release list for more than one hour: ❯ flyctl releases list VERSION STABLE TYPE STATUS DESCRIPTION USER DATE v88 true scale in\_progress Update autoscaling config 1h7m ago v87 false scale failed Scale VM count: ["app, 2"] 1h20m ago v86 false scale cancelled Update autoscaling config 1h41… --- _[View the full topic](https://community.fly.io/t/running-tcp-dns-server/757)._