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1500 questions
57
votes
9 answers
How can I sniff the traffic of remote machine with wireshark?
I can sniff the traffic of my local pc but I would like to know how to I sniff the traffic of a remote machine by wireshark?
When in capture option I select remote interface and enter my remote ip show me error.code(10061).
What should I do?
aboutstudy
- 1,027
57
votes
8 answers
How to VNC into an existing X session?
Would like to be able to connect to an existing X display, so can access my work environment and everything I left open from home. I vaguely remember something about using x11vnc in the past. But the package does not exists for Fedora 11, so I am…
grom
- 869
57
votes
8 answers
how to restart/clear memcache without restarting the whole web server?
/opt/eduserver/eduserver gives me options:
Usage: /opt/eduserver/eduserver
{start|stop|startphp|startwww|startooo|stopphp|stopwww|stopooo|restartphp|restartwww|restartooo|status|restart|reload|force-reload}
where memcache is php module there is…
Radek
- 1,133
57
votes
6 answers
What's the best fire suppression for a server room?
What is the state of the art in fire suppression for server rooms? What are the top priorities in choosing a good system?
Dennis Williamson
- 64,083
57
votes
6 answers
Cron: Only get errors in emails?
I finally set up a realistic backup schedule on my data through a shell script, which are handled by cron on tight intervals. Unfortunately, I keep getting empty emails each time the CRON has been executed and not only when things go wrong.
Is it…
Industrial
- 1,609
- 6
- 26
- 37
57
votes
4 answers
What does the "IN" mean in a zone file?
Sometimes a record is listed as www IN A 192.168.1.1 and sometimes it is listed as www A 192.168.1.1.
What is the purpose of the IN and when is it required/not required?
Tabitha
- 1,055
57
votes
4 answers
How do I make cURL use keepalive from the command line?
I'm trying to verify that HTTP persistent connections are being used during communication with a Tomcat webserver I've got running. Currently, I can retrieve a resource on my server from a browser (e.g. Chrome) and verify using netstat that the…
Rob Hruska
- 743
57
votes
4 answers
how to restrict access to directory and subdirs
I need to restrict access to any files or subdirs in direstory "testdir". My conf:
...
location ~* ^.+\.(jpg|txt)$ {
root /var/www/site;
}
location /testdir {
deny all;
return 404;
}
...
In my…
tst
57
votes
4 answers
how to run cron job every 3 months?
What would be the crontab entry look like for a job that runs on the first day of every third month?
haim evgi
- 763
57
votes
6 answers
How to configure basic authentication in Apache httpd virtual hosts?
I'm trying to configure mercurial access using Apache http.
It requires authentication. My /etc/apache2/sites-enabled/mercurial looks like this:
NameVirtualHost *:8080
UseCanonicalName Off
ServerAdmin …
Jader Dias
- 4,785
57
votes
5 answers
How to delete Instances in Amazon EC2 ? Change Pair Key?
How to remove Instances ? I test some Instances and now I terminate it. So, I want to remove it. I can't find delete or remove action. I just found terminate.
How to change the pair key ? I don't have pair key for old Instances and I want to…
saturngod
- 827
- 2
- 10
- 12
56
votes
3 answers
What is the difference between SQL Server standard and web edition?
Is there any technical difference between these 2 editions or is it just how they are licenced?
Shiraz Bhaiji
- 2,279
56
votes
4 answers
Does Wi-Fi traffic from one client to another travel via the access point?
Consider a Wi-Fi network with one access point and two clients, operating in marginal conditions due to range, etc. Client 1 is communicating with Client 2. Obviously the Access Point (AP) must be in range of both (assuming no fancy mesh modes,…
Pete
- 663
56
votes
3 answers
Use HTTP/2.0 between nginx reverse-proxy and backend webserver
I use nginx as a reverse-ssl-proxy in front of a backend webserver that is capable of doing HTTP/2.0.
I noticed that nginx proxies the requests to the backend server via HTTP/1.1 rather than HTTP/2.0. Is it possible to tell nginx to use an…
S1lentSt0rm
- 1,199
56
votes
3 answers
How to fix 'logjam' vulnerability in Apache (httpd)
Recently, a new vulnerability in Diffie-Hellman, informally referred to as 'logjam' has been published, for which this page has been put together suggesting how to counter the vulnerability:
We have three recommendations for correctly deploying…
