WordPress MU

I try to upgrade the blogs from mu admin area but got following errors.

Warning: fopen() [function.fopen]: php_network_getaddresses: getaddrinfo failed: Name or service not known in /home/megablogs/domains/blogs/public_html/wp-admin/wpmu-upgrade-site.php on line 32

Any suggestion?

That's a host issue as they have overlocked down their box. Please contact your host and ask them to allow fopen connections.

Rather strange as it came up at this late time. You should have also been having issues with RSS feeds as I believe fetch_rss, the function wp uses to grab feeds, uses fopen.

Its our own server. In php.ini
allow_url_fopen On

Thanks

Not a problem. :)

I thought fopen was allowed by default?