hi guys, I’m trying to use docker in fedora19. I followed the steps introduced in http://docs.docker.io/en/latest/installation/fedora/. The docker version is docker-io-0.7.0-14.fc19.x86_64. But when i run the command “docker search ubuntu” , it reports the following error messages:

docker search ubuntu

2013/12/13 03:40:39 Error: Get https://index.docker.io/v1/search?q=ubuntu: lookup index.docker.io: no such host

when I run docker service in debug mode, the error is another one:

docker search ubuntu

2013/12/13 03:22:59 Error: Get https://index.docker.io/v1/search?q=ubuntu: x509: certificate signed by unknown authority

test the website with wget:

wget https://index.docker.io/v1/search?q=ubuntu

–2013-12-13 03:06:10-- https://index.docker.io/v1/search?q=ubuntu Connecting to 128.5.64.30:3128… connected. ERROR: cannot verify index.docker.io’s certificate, issued by ?.O=HW Technologies Co., Ltd./OU=IT/L=HW Internal Network/C=CN/CN=HW Secure Internet Proxy CA?. Unable to locally verify the issuer’s authority. To connect to index.docker.io insecurely, use `–no-check-certificate’.

according to the message, add `–no-check-certificate’, run wget again:

wget https://index.docker.io/v1/search?q=ubuntu --no-check-certificate

–2013-12-13 03:06:27-- https://index.docker.io/v1/search?q=ubuntu Connecting to 128.5.64.30:3128… connected. WARNING: cannot verify index.docker.io’s certificate, issued by ?.O=HW Technologies Co., Ltd./OU=IT/L=HW Internal Network/C=CN/CN=HW Secure Internet Proxy CA?. Unable to locally verify the issuer’s authority. Proxy request sent, awaiting response… 200 OK Length: unspecified [application/json] Saving to: ?.earch?q=ubuntu?

[ <=>                                                                                                                          ] 2,494       --.-K/s   in 0s      

2013-12-13 03:06:29 (42.7 MB/s) - ?.earch?q=ubuntu?.saved [2494]

While i run the command “docker run -i -t ubuntu /bin/bash”, it has the same problem:

docker run -i -t ubuntu /bin/bash

Unable to find image ‘ubuntu’ (tag: latest) locally Pulling repository ubuntu 2013/12/13 03:38:11 Get https://index.docker.io/v1/images/ubuntu/ancestry: lookup index.docker.io: no such host

but “wget https://index.docker.io/v1/images/ubuntu/ancestry” report the 404 error. I know there must be something wrong with my network configure. But i try many methods mentioned in other similar questions, but it doesn’t work. Can you give me some advices? If I can’t reach index.docker.io host, how can I use a local image with docker? Thanks!