I'm trying to set cache-control: max-age on the http response header on IIS to a specific file. I'm trying to do that using a PowerShell script or a CMD command. can I do that? if yes, how?
Too late to answer this question, might be helpful for those who are still looking for the solution.
I used "appcmd.exe" in Powershell.
Below is how I used in Powershell:
# path to appcmd.exe
$appCmd = "C:\windows\system32\inetsrv\appcmd.exe"
# Path to the folder where we want to set the cache max-age
# in this case its a "scripts" folder in "Default Web Site" site
$env:folderPathScripts = "Default Web Site/scripts"
# sets the max age to 2 days
& $appCmd --% set config "%folderPathScripts%" -section:staticContent -clientCache.cacheControlMode:UseMaxAge -clientCache.cacheControlMaxAge:2.00:00:00
or
#To disable the cache
& $appCmd --% set config "%folderPathScripts%" -section:staticContent -clientCache.cacheControlMode:DisableCache
I referred following links:
https://forums.iis.net/t/1174801.aspx?How+to+Remove+and+Add+custom+headers+convert+from+appcmd
https://technet.microsoft.com/en-us/library/jj635852(v=ws.11).aspx
https://technet.microsoft.com/en-us/library/cc770661(v=ws.10).aspx
Related
We're got a pre-existing rsyslog config file which is working for papertrail e.g.
/etc/rsyslog.d/20-papertrail.conf which has
*.* #logs4.papertrailapp.com:44407
However we've got a couple of NGINX websites on the server so would like to have it also monitor their error logs.
The paths to them are:
/var/log/nginx/www.website-one.com-error.log
/var/log/nginx/www.website-two.com-error.log
/var/log/nginx/www.website-three.com-error.log
However this /var/log/nginx also contains a bunch of .log files which we do not want to monitor e.g.
/var/log/nginx/error.log
/var/log/nginx/access.log
/var/log/nginx/error.log1
/var/log/nginx/nginx.log
In my head we need to add something like...
/var/log/nginx/*-error.log
And make sure they pipe to the papertrail url as well.
However I'm struggling to decipher the rsyslog documentation to figure out how to do this.
Thanks!
In rsyslog documentation it seems that you can use wildcards in files.
File
The file being monitored. So far, this must be an absolute name (no macros or templates). Note that wildcards are supported at the file name level (see WildCards below for more details).
WildCards
Before Version: 8.25.0
Wildcards are only supported in the filename part, not in directory names.
/var/log/*.log works.
/var/log/*/syslog.log does not work.
Since Version: 8.25.0
Wildcards are supported in filename and paths which means these samples will work:
/var/log/*.log works.
/var/log/*/syslog.log works.
/var/log/*/*.log works.
All matching files in all matching subfolders will work. Note that this may decrease performance in imfile depending on how many directories and files are being watched dynamically.
If you want to forward your vhosts logs you can change configuration directly in NGINX vhosts configuration, you should change/add access_log and error_log policies as explained here or use custom facilities to forward your logs (using rsyslog).
HOW TO DO IT USING RSYSLOG?
Create a new custom file in /etc/rsyslog.d/nginx_custom.conf:
module(load="imfile" PollingInterval="1") #needs to be done just once
# File 1
input(type="imfile"
File="/var/log/nginx/www.website-*.com-error.log"
Tag="websites"
Facility="local0")
local0.* #logs4.papertrailapp.com:44407
#Just to test that logs are forwarded, comment the line once you've tested it
local0.* /var/log/test.log
And restart rsyslog service
NOTE: Line local0.* /var/log/test.log is just to test that you can see forwarded logs into your local server, comment this line after you've tested that everything works.
I need to know about full downloading a resource from server. My server is configured with NginX web server, and I want to do something if and only if the resource downloaded completely by user.
If you are using Nginx to handle downloading your files (using XSendfile), you should add a specific access_log block to your download handling block in your Nginx configs (in your "server" block). It would be something like this:
location /download_music/ {
internal;
root /usr/share/nginx/MY_SITE/media/music;
access_log /var/log/nginx/download.MY_SITE.log download;
}
The word "download" at the end of the access_log line is actually a log format which you should add it to the nginx main config file (/etc/nginx/nginx.conf) in the "http" block. It could be something like this:
http {
...
log_format download '{ "remote_addr" : "$remote_addr", "time":"$time_local", "request":"$request", '
'"traffic":$body_bytes_sent, "x_forwarded_for":"$http_x_forwarded_for" }';
...
}
You can change this format to what format you want (you will use it in your script later). If you monitor this log file (using "tail -f /var/log/nginx/download.MY_SITE.log") you will see that any time a download is paused or finished, a line of log will be added to this file.
The next step is using rsyslog and the "imfile" and "omprog" modules. You should add these configs at the end of the config file of rsyslog (/etc/rsyslog.conf):
$ModLoad imfile
$InputFileName /var/log/nginx/download.MY_SITE.log
$InputFileTag nginx-access
$InputFileStateFile state-nginx-access
$InputFileSeverity info
$InputFileFacility local3
$InputFilePollInterval 1
$InputRunFileMonitor
$ModLoad omprog
$actionomprogbinary /usr/share/nginx/MY_SITE/scripts/download.py
$template LogZillaDbInsert,"%hostname:::lowercase%\9%pri%\9%programname%\9%msg%\n"
local3.* :omprog:;RSYSLOG_TraditionalFileFormat
Pay attention to this line:
/usr/share/nginx/MY_SITE/scripts/download.py
This is the address of the script which would be called every time a log entry is added to the log file and the whole log entry will be available in this script using (in Python code):
line = sys.stdin.readline()
Then you can parse the line and find whatever you have logged including the downloaded file size (on every pause/finish event). Now, you can simply include the file size in the download URL and retrieve it in this script and compare it with the downloaded bytes. If these two numbers are equal, it means that download has been finished successfully. Moreover, you can do any other thing you want in this script (for example, expire download link, increase download count on DB, ...)
Switching from apache to nginx, and encountering something weird.
1) Say I have a file yo.txt in the document root of my site and it contains 'foo'.
curl http://localhost/yo.txt => 'foo'
2) then I alter the file to contain 'bar'
curl http://localhost/yo.txt => 'foo' (still!)
If I remove yo.txt, I get a 404. If I remove all the text, I correctly get an empty file when I curl the url.
I checked the last modified HTTP header after I modify the file, and it is correct, even though the contents of the file are stale.
I'm using the standard configuration from nginx after an apt-get install nginx.
what gives?
I'm using Vagrant. Setting sendfile to off in nginx.conf fixed the problem as found here, e.g."
sendfile off;
For me the following worked:
expires modified 10y;
According to the docs:
The time in the “Expires” field is computed as a sum of the current time and time specified in the directive. If the modified parameter is used (0.7.0, 0.6.32) then the time is computed as a sum of the file’s modification time and the time specified in the directive.
I want to be able to check if my site is up and monitor it by nagios locally.
So I went to this site http://www.linickx.com/nagios which made the following, now while I cant see hosts.cfg so I created it and also services.cfg I had to create as well:
hosts.cfg
# host definition for bonus
define host{
use generic-host ; Name of host template to use
host_name bonus
alias bonus
address 92.12.35.162
check_command check-host-alive
max_check_attempts 10
notification_interval 120
notification_period 24x7
notification_options d,u,r}
services config
The following should appended to the end of hosts.cfg (located in /etc/nagios or /usr/local/nagios/etc)
# Service definition for bonus
define service{
use generic-service ; Name of service template to use
host_name bonus
service_description HTTP
is_volatile 0
check_period 24x7
max_check_attempts 3
normal_check_interval 3
retry_check_interval 1
contact_groups technical,support
notification_interval 120
notification_period 24x7
notification_options w,u,c,r
check_command check_http
}
How can I get this to work please?
Nagios won't add new configuration files unless either the file or directory is specified in the main nagios.cfg. Also, the new object configurations won't be added until you restart the Nagios process. Can you give some more detail as to how you installed Nagios (source or package) and what linux distro you're on?
Here are some additional resources:
Nagios Core Documentation
http://nagios.sourceforge.net/docs/3_0/
Nagios Core Support Forum
http://support.nagios.com/forum/viewforum.php?f=7
I am using nginx as web server and when I do phpinfo(); it uses /etc/php5/fpm/php.ini
Now in my php code I am trying to set file upload size and max file uploads using following code.
ini_set('max_file_uploads', "50");
ini_set('upload_max_filesize', '250M');
But when I do ini_get('max_file_uploads') and echo the value it shows the default value as 20, infact I am not able to change any of the ini values in run time using ini_set().
Any ideas on how to change these values in run time using php code?
Thanks.
Not all PHP ini directives can be changed at runtime (via ini_set). See the file uploads section of the PHP manual and the definition of the changeability values, which are PHP_INI_SYSTEM and PHP_INI_PERDIR for your desired settings, neither of which can be set at runtime.
To get these settings in only one part of your app, you'll likely need to compromise and set max_file_uploads setting globally in your php.ini file (since it is PHP_INI_SYSTEM), and then use your favorite per-directory config mechanism (.htaccess, .user.ini (in >5.3), etc) to set upload_max_filesize for that particular part of your app. See here for good instructions.