Get public IP from bash

itsdeadjim · March 2023

In case anyone finds this useful, sometimes I need to get my public IP from bash or scripts and I use api.myip.com, only because it's easy to remember.

But more and more often lately, some IPs are blocked there and get http errors, so I bought a cheap domain and I woke up a $3/year @natvps_uk from idling, and..

wget -4 -qO- myip.cam
or for ipv6
wget -6 -qO- myip.cam

(or curl -4L myip.cam if curl is your thing)

Wonder_Woman · March 2023

I've always used ifconfig.me, it's quite easy to remember. I use da.gd/ip for IPv6 though.

itsdeadjim · March 2023

@Wonder_Woman said:
I've always used ifconfig.me, it's quite easy to remember. I use da.gd/ip for IPv6 though.

Yeah I wouldn't remember da.gd/ip even if my life was depending on it

Wonder_Woman · March 2023

@itsdeadjim said:

@Wonder_Woman said:
I've always used ifconfig.me, it's quite easy to remember. I use da.gd/ip for IPv6 though.

Yeah I wouldn't remember da.gd/ip even if my life was depending on it

That's very true, I often bungle the letters up myself...

adwsislife · March 2023

@itsdeadjim said:
In case anyone finds this useful, sometimes I need to get my public IP from bash or scripts and I use api.myip.com, only because it's easy to remember.

But more and more often lately, some IPs are blocked there and get http errors, so I bought a cheap domain and I woke up a $3/year @natvps_uk from idling, and..

wget -4 -qO- myip.cam
or for ipv6
wget -6 -qO- myip.cam

(or curl -4L myip.cam if curl is your thing)

I need to check IPs of VPN docker container to see if IP really changed or not.
I use
curl https://ifconfig.co/ip for ipv4
curl -6 https://ifconfig.co/ip for ipv6
But I could not remember it. I always copy paste from a txt file.

Your's is quite easy to remember.
This will be quite handy.
Thanks for it

BTW
curl -4L myip.cam is for IPv4 I guess?
What's curl command for IPv6 ?

Sakura · March 2023

ip.sb is also a good choice.

nightcat · March 2023

https://4.ident.me for ipv4
https://6.ident.me for ipv6

itsdeadjim · March 2023

@adwsislife said:
BTW
curl -4L myip.cam is for IPv4 I guess?
What's curl command for IPv6 ?

curl -6L myip.cam

Btw, the -L is needed because nat http proxy redirects http to https.
If I find a vps with a public IPv4 for under $10/year, I will have both 443 and 80 reply, so -L will not be needed

@nightcat said:
https://4.ident.me for ipv4
https://6.ident.me for ipv6

Good idea, I also enabled

curl -L 4.myip.cam
curl -L 6.myip.cam

carlin0 · March 2023

curl -s https://checkip.amazonaws.com

ralf · March 2023

https://canhazip.com/

ralf · March 2023

@itsdeadjim said:
But more and more often lately, some IPs are blocked there and get http errors, so I bought a cheap domain and I woke up a $3/year @natvps_uk from idling, and..

It's worth reading about previous people who've run these kinds of service. Once they got popular, they start consuming a lot of bandwidth, so it might not be best to advertise it too widely... e.g. the one I just posted: https://blog.apnic.net/2021/06/17/how-a-small-free-ip-tool-survived/

itsdeadjim · March 2023

@ralf said:

@itsdeadjim said:
But more and more often lately, some IPs are blocked there and get http errors, so I bought a cheap domain and I woke up a $3/year @natvps_uk from idling, and..

It's worth reading about previous people who've run these kinds of service. Once they got popular, they start consuming a lot of bandwidth, so it might not be best to advertise it too widely... e.g. the one I just posted: https://blog.apnic.net/2021/06/17/how-a-small-free-ip-tool-survived/

Lol crazy, I wouldn't expect that. Thanks!

And this is why we can't have nice things.

Fritz · March 2023

@ralf said:
https://canhazip.com/

What a weird name, never use it before.

yoursunny · March 2023

curl -4 icanhazip.com
curl -6 icanhazip.com

These are owned by Cloudflare and operated on Workers platform
https://major.io/2021/06/06/a-new-future-for-icanhazip/

ralf · March 2023

@Fritz said:

@ralf said:
https://canhazip.com/

What a weird name, never use it before.

https://en.wikipedia.org/wiki/I_Can_Has_Cheezburger?

It was the dominant meme on the internet for about 6 months about 15 years ago.

taizi · March 2023

ipinfo.io

qeba · March 2023

If you're bored, then try this:

https://myip.wtf/

 curl myip.wtf/json

shallow · March 2023

bash?
Real G's use zsh

havoc · March 2023

You can set up your own service via cf workers too

Only gotcha is it returns whatever resolves faster...so sometimes ipv4 sometimes 6

xleet · March 2023

@yoursunny said:
curl -4 icanhazip.com
curl -6 icanhazip.com
These are owned by Cloudflare and operated on Workers platform
https://major.io/2021/06/06/a-new-future-for-icanhazip/

An interesting, educational, and entertaining story. Thanks for sharing.

tjn · March 2023

@yoursunny said:
These are owned by Cloudflare and operated on Workers platform
https://major.io/2021/06/06/a-new-future-for-icanhazip/

This is so cool!

bruh21 · March 2023

@itsdeadjim said:
If I find a vps with a public IPv4 for under $10/year, I will have both 443 and 80 reply, so -L will not be needed

https://cloudserver.net/billing/index.php?rp=/store/custom-packages/leb-1gb-annual-plan

FatGrizzly · March 2023

curl ipinfo.io
curl v6.ipinfo (v6)

itsdeadjim · March 2023

@bruh21 said:

@itsdeadjim said:
If I find a vps with a public IPv4 for under $10/year, I will have both 443 and 80 reply, so -L will not be needed

https://cloudserver.net/billing/index.php?rp=/store/custom-packages/leb-1gb-annual-plan

Thanks, It turned out I had another one with a public IP that was auto-renewing idling so I just moved the service there.

Finally, the following requests are possible

curl myip.cam
curl 4.myip.cam
curl 6.myip.cam
curl -4 myip.cam
curl -6 myip.cam

By the way the service is a quick 'n' dirty custom C# async web-server behind an nginx reverse proxy. It seems that it can do 1-1.5k requests per second without much of trouble. (famous last words)

itsdeadjim · March 2023

@shallow said:
bash?
Real G's use zsh

Yeah good point. I use bash so long that it's become a synonym for terminal

atomi · March 2023

@itsdeadjim said:

By the way the service is a quick 'n' dirty custom C# async web-server behind an nginx reverse proxy. It seems that it can do 1-1.5k requests per second without much of trouble. (famous last words)

You could do it with pure nginx
location / { default_type text/plain; return 200 "$remote_addr"; }

shallow · March 2023

@atomi said: You could do it with pure nginx
location / { default_type text/plain; return 200 "$remote_addr"; }

I remember a few years back I wanted to do this exact thing, a simple text output ip lookup. It seemed so simple, but wasn't (for me). I wish I knew about this little nginx trick then.

tjn · March 2023

You can do it in Caddy with something that looks like:

yourdomain.com {
    templates
    header Content-Type text/plain
    respond "{{.RemoteIP}}"
}

alt · March 2023

@tjn said:
You can do it in Caddy with something that looks like:
yourdomain.com {
    templates
    header Content-Type text/plain
    respond "{{.RemoteIP}}"
}

Oh, I did that same thing
https://geoip.mxtrans.net/ip for plain ip return,
https://geoip.mxtrans.net/json for geoip json format.
Also short for ip.mx.sb, but you need add -L for redirection.
curl -L ip.mx.sb

noisycode · March 2023

@Wonder_Woman said:
I've always used ifconfig.me, it's quite easy to remember. I use da.gd/ip for IPv6 though.

Yeah, I've been using ifconfig.me for years. It's neat and well enough for me.

rcy026 · March 2023

@atomi said:
You could do it with pure nginx
location / { default_type text/plain; return 200 "$remote_addr"; }

I have used a very simple php script for years to accomplish just this, I cant believe I did not think of doing it this way instead.
It's just so simple it's brilliant, thank you.

Get public IP from bash

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