# Using the \`HOST\` environment variable to specify the IP is deprecated...

**URL:** <https://forums.suse.com/t/using-the-host-environment-variable-to-specify-the-ip-is-deprecated/35014>\
**Category:** General Discussion\
**Created:** [May 18, 2020, 2:27pm UTC](https://forums.suse.com/t/using-the-host-environment-variable-to-specify-the-ip-is-deprecated/35014 "2020-05-18T14:27:03Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Aleksej](https://avatars.discourse-cdn.com/v4/letter/a/7c8e57/32.png) [@Aleksej](https://forums.suse.com/u/Aleksej)\
**Post date:** [May 18, 2020, 2:27pm UTC](https://forums.suse.com/t/using-the-host-environment-variable-to-specify-the-ip-is-deprecated/35014/1 "2020-05-18T14:27:03Z")

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Hi everybody.  
When I work with Rails, I get this error…

```
rails s
DEPRECATION WARNING: Using the `HOST` environment variable to specify the IP is deprecated and will be removed in Rails 6.1. Please use `BINDING` environment variable instead. (called from <top (required)> at /home/alex/.disk_a/Rails/GitHub/test_oblako_Github/bin/rails:9)
=> Booting Puma
=> Rails 6.0.2.2 application starting in development 
=> Run `rails server --help` for more startup options
Puma starting in single mode...
* Version 4.3.3 (ruby 2.6.4-p104), codename: Mysterious Traveller
* Min threads: 5, max threads: 5
* Environment: development
* Listening on tcp://127.0.0.1:3000

```

Please tell me how to solve this?

```
cat /etc/os-release
NAME="openSUSE Leap"
VERSION="15.1"
ID="opensuse-leap"
ID_LIKE="suse opensuse"
VERSION_ID="15.1"
PRETTY_NAME="openSUSE Leap 15.1"
ANSI_COLOR="0;32"
CPE_NAME="cpe:/o:opensuse:leap:15.1"
```

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**Author:** ![malcolmlewis](https://sea2.discourse-cdn.com/flex022/user_avatar/forums.suse.com/malcolmlewis/32/11375_2.png) [@malcolmlewis](https://forums.suse.com/u/malcolmlewis)\
**Post date:** [May 18, 2020, 2:30pm UTC](https://forums.suse.com/t/using-the-host-environment-variable-to-specify-the-ip-is-deprecated/35014/2 "2020-05-18T14:30:07Z")

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Hi and welcome to the SUSE Forum 🙂  
Unfortunately this is for the Enterprise release, you need to head over to [https://forums.opensuse.org](https://forums.opensuse.org) (same username/password).

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**Author:** ![Aleksej](https://avatars.discourse-cdn.com/v4/letter/a/7c8e57/32.png) [@Aleksej](https://forums.suse.com/u/Aleksej)\
**Post date:** [May 18, 2020, 2:32pm UTC](https://forums.suse.com/t/using-the-host-environment-variable-to-specify-the-ip-is-deprecated/35014/3 "2020-05-18T14:32:50Z")

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excuse me…  
☹

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**Author:** ![malcolmlewis](https://sea2.discourse-cdn.com/flex022/user_avatar/forums.suse.com/malcolmlewis/32/11375_2.png) [@malcolmlewis](https://forums.suse.com/u/malcolmlewis)\
**Post date:** [May 18, 2020, 3:04pm UTC](https://forums.suse.com/t/using-the-host-environment-variable-to-specify-the-ip-is-deprecated/35014/4 "2020-05-18T15:04:51Z")

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Hi  
It’s not a problem, just you will get better replies to your question over there since it’s for openSUSE releases (eg openSUSE Leap 15.1) which is what you are running not SLED or SLES 😉

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**Author:** ![Aleksej](https://avatars.discourse-cdn.com/v4/letter/a/7c8e57/32.png) [@Aleksej](https://forums.suse.com/u/Aleksej)\
**Post date:** [May 18, 2020, 4:18pm UTC](https://forums.suse.com/t/using-the-host-environment-variable-to-specify-the-ip-is-deprecated/35014/5 "2020-05-18T16:18:17Z")

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I do not think so.  
‘HTTP ERROR 500’ after entering login / password.  
Unfortunately.  
I’ll be back later when they fix it … alas, there is no time.  
 ![](https://forums.suse.com/uploads/editor/mn/0u5ct0x8hdhd.jpg)

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**Author:** ![malcolmlewis](https://sea2.discourse-cdn.com/flex022/user_avatar/forums.suse.com/malcolmlewis/32/11375_2.png) [@malcolmlewis](https://forums.suse.com/u/malcolmlewis)\
**Post date:** [May 19, 2020, 12:06am UTC](https://forums.suse.com/t/using-the-host-environment-variable-to-specify-the-ip-is-deprecated/35014/6 "2020-05-19T00:06:39Z")

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Hi  
There was an issue with SSL this morning, can you try again?