[Systems] {wiki, activities}.sugarlabs.org dead, no response to HTTP GET

[Bernie Innocenti]

Seems to work now.

Our webserver often ends up in a state in which all 150 processes are
sleeping without much going on.

Last time I saw it, there were plenty of connections from some shady SEO
company (ahrefs.com). It very much looked like a DDoS, so I just
blackholed their entire subnet with iptables.

Not sure how to stop these in a more generalized way. Maybe we could
rate-limit connections per-IP using iptables, or find an anti-DDoS
Apache module.

On 02/17/2016 11:58 PM, James Cameron wrote:
> wiki.sugarlabs.org and activities.sugarlabs.org are accepting
> connections but not responding to HTTP GET requests.
> 
> quozl at sunjammer:~$ wget http://wiki.sugarlabs.org/
> --2016-02-17 23:57:43--  http://wiki.sugarlabs.org/
> Resolving wiki.sugarlabs.org (wiki.sugarlabs.org)... 2001:4830:134:7::11, 208.118.235.53
> Connecting to wiki.sugarlabs.org (wiki.sugarlabs.org)|2001:4830:134:7::11|:80... connected.
> HTTP request sent, awaiting response... ^C
> 130!quozl at sunjammer:~$ 
> 


-- 
 _ // Bernie Innocenti
 \X/  http://codewiz.org