zeroasterisk's questions

I setup a system similar to the tutorial here.

I'm having issues with nginx connecting to the php5-fpm socket, but from what I can tell the permissions on the socket are correct... can you give me a hand?

2011/04/14 15:31:24 [crit] 13147#0: *1 connect() to unix:/var/run/php5-fpm.socket failed (2: No such file or directory) while connecting to upstream, client: 74.129.***.***, server: app.mydomain.com, request: "GET /phpinfo.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm.socket:", host: "app.mydomain.com"

root@app0:/# ls -l /var/run/php5-fpm.socket
srw-rw-rw- 1 www-data www-data 0 Apr 14 15:51 /var/run/php5-fpm.socket

root@app0:/# ps aux | grep fpm
root     13315  0.0  1.9 168276  4948 ?        Ss   15:51   0:00 /usr/sbin/php5-fpm --fpm-config /etc/php5/fpm/main.conf
www-data 13316  0.0  2.1 168672  5492 ?        S    15:51   0:00 /usr/sbin/php5-fpm --fpm-config /etc/php5/fpm/main.conf

root@app0:/# ps aux | grep nginx
root     13341  0.0  0.4  33200  1036 ?        Ss   15:52   0:00 nginx: master process /usr/local/nginx/sbin/nginx -c /etc/nginx/nginx.conf
www-data 13342  0.0  0.7  34008  1880 ?        S    15:52   0:00 nginx: worker process
www-data 13344  0.0  0.6  33680  1628 ?        S    15:52   0:00 nginx: worker process

I've got a few customizations to the configurations you provide, but it's largely the same. Want to suggest a troubleshooting avenue?

I'd like to request some help in creating a Batch file to run on a windows server which will monitor processes which sometimes get "stuck" and linger after they should be killed.

Specifcally, I can see the "age" of a process in the Elapsed Time column of the PsList command http://technet.microsoft.com/en-us/sysinternals/bb896682.aspx

Name                Pid Pri Thd  Hnd   Priv        CPU Time    Elapsed Time
FMSCore            4908   8 146  892 750720     0:01:46.221     4:02:15.907
FMSCore            4780   8 144  943 853060     0:00:42.510     4:02:15.348
FMSCore            3532   8 146  878 553784     0:01:30.262     2:04:56.969
FMSCore            5384   8 147  753  45484     0:00:03.198     0:05:11.267
FMSCore            9548   8 133  608  17408     0:00:00.592     0:00:34.298

The next step, is I only want to kill processes which are older than 4 hours. So I believe we will need to parse the results of my PsList command, extract the last column, parse for hours, and if we find that it's "old enough" we parse out it's PID and kill it.

If we were talking about bash or some other scripting language I think I could figure it out, but for a batch script, I don't know.

recommendations?

(note: I'd be willing to run an autoit script or something else, if needed)

We have IIS7 servers sitting behind an nginx reverse proxy.

The reverse proxy is sending the standard "HTTP_X_FORWARDED_FOR" header with the visitor IP address, but IIS7 logging is only logging the IP address of the nginx server (which makes sense, but it's not what I want).

How can I tell IIS7 to instead log the "HTTP_X_FORWARDED_FOR" header (or additionally log it)?

(note: I'm a linux admin, not a windows one, so explicit instructions & links are sincerely appreciated)

We have some windows server 2008 VMware instances on multiple physical servers (hosted) and an application which requires the time to be synced across the server instances.

Obviously, VMware has problems with this and we really have never gotten it working any better, we have setup the servers to poll for an NTP update every minute which mitigates the problem (in a fairly crude way). Except that every once in a while, the update will fail (because there's already too much drift) and then windows never does an NTP update afterwards which eventually allows the servers to drift far enough apart that our application breaks, and we notice.

We are thinking about changing hosts to Xen servers on approximately the same setup, and I anticipate similar problems.

1. can anyone tell me if Xen has the same time-drift issues VMware does, for guests?
2. can anyone tell me what the best windows server settings are for syncing with an external NTP server to keep things in sync:
   1. how frequently do you recommend syncing? (assuming every minute)
   2. do you recommend running our own NTP server - even if it has to be on a virtual instance? (assuming not)
   3. is there any way to tell windows to sync with the NTP server no matter what the time difference is?
   4. any other suggestions for keeping windows servers time in sync?

I have become familiar with [ http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1318 ] and it's helped, but it's not been totally effective (see above).

thanks much!