djangofan's questions

Can ulimit on containers within docker daemon process be higher than the limit of the daemon process itself?

Docker documentation does not mention anything about this:

From : https://docs.docker.com/engine/reference/commandline/dockerd/#default-ulimit-settings

--default-ulimit allows you to set the default ulimit options to use for all containers. It takes the same options as --ulimit for docker run. If these defaults are not set, ulimit settings will be inherited, if not set on docker run, from the Docker daemon. Any --ulimit options passed to docker run will overwrite these defaults.

What is the reason for redirecting the landing page of a site to a URL with '/#/' at the end?

The system administrators at my company use a Apache reverse proxy, and they always redirect all the external websites to a landing page that ends with '/#/'.

For example:

https://example.com/springApp/#/

Is there any particular reason for this? I am a technical person, but I can't think of a reason for this. Just curious. NOTE: our website does NOT use page scroll anchors.

Can Jenkins run a shell script located outside of the Jenkins workspace? I am wondering if I can get Jenkins to run scripts outside of the Jenkins workspace that are not sourced within any kind of source control repository.

Does Jenkins have a plugin that allows adding a build step that points to a arbitrary located script file on the same system?

What do I download (on a windows box) to get a Apache 2.0.55 + PHP 4.4.7 environment? I am fine with newer versions of PHP and Apache, but if I want to emulate a environment on an old SunOS server that has older versions of Apache and PHP. Can anyone recommend the downloads i should use and where to get them?

I have a htdocs directory where I am serving a few Microsoft Word documents. When someone is editing a document, the name of the document changes to look like something like this: "~$my_document.doc" and also .tmp files are created that represent edits of the document until the document is closed.

So, I want Apache to not serve these files until the user is finished editing them. So, I want to hide files ending with .tmp extension at the same time that I am hiding files that start with "~$" .

So, can anyone help me enhance this Apache directive to accomplish this?

<Directory "C:/Apache2.2/htdocs">
    <Files ~ "\.tmp$">
      Order allow,deny
      Deny from all
    </Files>
.....
</Directory>

This is a regular expression trick that is beyond my ability right now.

Is there a way to install lightweight Active Directory on Windows 7 for Development purposes without domain? I've downloaded the "AD LDS" for Windows 7 and installed it but it seems to require a actual domain server exist on the network. Isn't it possible to run a active directory on the domain called "localhost" ?

Is there anywhere that I can get a valid , signed, SSL cert to the "localhost" domain for testing? Does anyone anywhere offer a download of something like this that I can use in testing? I know how to use openssl to sign a key with a CA, but there are a lot of steps involved and I am hoping there is something quick and easy.

What I want is a canned test CA that I can import into my trusted CA stores and then a accompanying jks keystore that has the cert chain in it for that CA.

So, it would be a 3 step process, within a protected sandbox :

   1.  Get a new distro of Jetty, enable the SSL connector, point it to 
       the localhost.jks keystore
   2.  Import the CA that signed the localhost cert in the localhost.jks 
       into my web browser
   3.  Browse to Tomcat on the SSL port , look at the cert and see the 
       cert chain. 

How do I create a local backup of a remote Amazon RDS MySQL database? What I need to know is how to make a complete full local backup of a MySQL database (not a remote Amazon snapshot) that can be used to restore to a new database anywhere, on any MySQL server (same version of course).

NOTE: I know how to import data from a flat file via MySQL. Here is how I connect:

mysql -h mydb.xxxxx.us-east-1.rds.amazonaws.com -u myuser -P 3306 -p

Here is how I load a single database table:

mysql> LOAD DATA LOCAL INFILE 'C:/Temp/t1.tab' INTO TABLE t1 LINES TERMINATED BY '\r\n';

How do I configure the Cisco VPNUI client as a shortcut to open a specific host? As far as I can tell, the program doesn't take an command line arguments, or does it?

The problem is that the VPNUI.exe doesn't remember a history of VPNs you have connected to in the past, as most other software programs would do.

I have this traceroute result, and I am wondering what EXACTLY do the 3 numbers mean at the end of each line? I assume they are ping times, but what exactly is the difference between each number?

 1  L300.DLLSTX-VFTTP-49.verizon-gni.net (71.123.238.1)  9.429 ms  9.867 ms  10.095 ms
 2  G0-1-849.DLLSTX-LCR-08.verizon-gni.net (130.81.107.110)  10.075 ms  9.887 ms  10.075 ms
 3  so-6-2-0-0.DFW01-BB-RTR2.verizon-gni.net (130.81.28.210)  28.547 ms  39.649 ms  9.992 ms
 4  0.ae2.BR1.DFW13.ALTER.NET (152.63.2.149)  10.110 ms  9.298 ms  10.109 ms
 5  * * *
 6  ae-2-70.edge4.Dallas3.Level3.net (4.69.145.77)  *  9.798 ms  10.115 ms
 7  ORACLE-CORP.edge4.Dallas3.Level3.net (4.59.32.6)  10.093 ms  9.374 ms  10.100 ms
 8  adcq7-swi-7-xe-0-1-0.oracle.com (141.146.0.129)  10.310 ms  11.980 ms  12.480 ms
 9  ora-141-146-3-31.oracle.com (141.146.3.31)  12.458 ms  12.190 ms  12.629 ms
10  bigip-www-adc.oracle.com (141.146.9.91) [open]  12.353 ms  2947.212 ms *

I have some 32-bit GNU programs that I want to add to the system path on my Windows7-64bit machine, such as Curl.exe, WGet.exe, AutoExNT.exe, etc. I don't want to have to alter the system Path environment variable at all and so I want to place them in a location that is equivilant to "system32" on a old 32-bit system.

I know, that since these are 32-bit programs, that they wont run unless they are located in the 32-emulator directory: SysWOW64. I've tried, so I know this to be true.

I am confused as to why this directory is not part of the default system Path in Windows7. Is it safe or recommended to add SysWOW64 to the default system environment (not User level env)??

Is there something I am overlooking here? Is there a way to run a batch file with SysWOW64 in the path that doesn't require hacking the system path?

I am trying to get an Apache webserver to load balance to a JBoss cluster, but unfortunately, I dont understand how mod_proxy_ajp works through the load balanced scenerio, since each of the 2 instances of JBoss run AJP on a different port. Since I specify my ProxyPass rule using only one of the ports, what ends up happening is that all the traffic goes through only one of the instances (that I specified using my ProxyPass rule).

<Location /jconsole>  
    # somehow I need this to also load balance to port AJP localhost:8209
    ProxyPass ajp://localhost:8109/jconsole
    ProxyPassReverse ajp://localhost:8109/jconsole
</Location>

Any help I could get would be great.

I have a Apache server using mod_proxy_ajp to have Jboss/Tomcat5.5 handling all the requests. Here is how I configured Apache 2.2.17, and for the most part, it works:

# Proxy pass all work to Tomcat, mod_jk 1.2.31
<Location />
    # ProxyPass / http://localhost:8080/
    ProxyPass ajp://localhost:8009/
    ProxyPassReverse ajp://localhost:8009/
</Location>
RewriteEngine On
RewriteCond %{HTTPS} off
RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI}
#  and , to handle the redirect of the root dir
Redirect permanent / https://%{HTTP_HOST}%/myapp

Unfortunately, while ProxyPass is enabled, I am not able to get any mod_rewrite rules to work except for the ones above. How do I handle this situation?

I am trying to create a rewrite rule similar to this RedirectMatch rule (which only works if I turn off ProxyPass):

RedirectMatch ^/(?i)myagency   "/myapp?agency=MyAgency%20LA"

Also, another wierd thing I found, which may provide insight to my issue, is posted here .

After setting root password why does MYSQL still allow me to login without a password from the command line? I can type "mysql" at a root unix prompt and it asks for no password and still allows me root access. I am not understanding why "mysql -u root" is not NOW asking me for the password that I set on the account.

Also, I cannot login to the mysql from a remote machine as 'root'. Didn't I configure it correctly below? I get the error: "Host...is not allowed to connect to this MySQL server. Didn't I configure it for '%' ?

Here is my user table:

mysql> select host,user,password from user;
+-----------+------+-------------------------------------------+
| host      | user | password                                  |
+-----------+------+-------------------------------------------+
| localhost | root | *2470C0C06DEE42FD1618BB99005ADCA2EC9D1E19 |
| %         | root |                                           |
| 127.0.0.1 | root |                                           |
| ::1       | root |                                           |
| localhost |      |                                           |
| %         |      |                                           |
+-----------+------+-------------------------------------------+
6 rows in set (0.00 sec)

How could I monitor a service port from a bash shell?

I want to monitor a Java service (once per minute on port 9090) and then call "/etc/init.d/myservice -restart" if the service isn't responding with a simple HTML message.

How would you do something like this?

My idea was to use something similar to this:

wget -O - --no-check-certificate --progress=dot https://localhost:9090

Or

curl --insecure https://localhost:9090

I am curious what people would recommend as the best software for taking a system information snapshot? This would be for use in a technical support fashion.

I am not asking how to measure server startup time here. I am wondering if anyone knows of a tool that can measure and show a graph of the startup time and order of all the windows services during system startup.

I saw a software program shown on my local Portland news last week that does this but I am unable to remember what it was called or anything else about it. All I remember is that it was a "tech" news story to help computer users with their computers.

So, I know the software exists and I am trying to find it.

Does anyone have any experience or advice in setting up multiple JBoss 5.1.x instances on the same machine that has 1 network card?

Here is what I did:

1. Installed JBoss 5.1.0.GA into c:\myjboss 1.5. I copied the server/default directory to server/ports-01 and server/ports-02 so they have their own config. did I assume correctly?
2. Ran .\run.bat -c ports-01
3. Ran .\run.bat -c ports-02

At this point there are 2 instances but the second instance doesn't load correctly because of what is probably a few port conflicts. For example: the http port ends up being 8080 for both instances, which it gets from line #49 in the C:\myjboss\server\all\conf\bindingservice.beans\META-INF\bindings-jboss-beans.xml file. Earlier in the server load it clearly gets the value from line#63 in that same file. I don't know why it gets part of the port config from line #49 and the other part from line#63. Confused.

I also tried: .\run.bat -Djboss.service.binding.set=ports-01 -c ports-01 and it made little difference.

Any ideas on what I am doing wrong?

I am looking for a linux server distro with a low memory footprint. I usually use Ubuntu but I need something with a smaller footprint in order to run a large Java JVM service inside of it and also run X-windows. Any ideas? The Java service needs to handle a 3GB memory heap and so I require a 64-bit OS and JRE.

http://en.wikipedia.org/wiki/Comparison_of_Linux_distributions

I am thinking that ArchLinux is the only one that I can find right now. It uses 250MB out of the box (without X-win). Any better suggestions?

I know that explicit "negotiated" FTPS is preferred, because it still uses the standard port 21 with that method but in regards to "implicit" non-negotiated FTPS using a standard port of 990 vs. port 22 (which I have seen some people describe), why is there this difference in a "standard" for the non-negotiated port number?

Note: I also noticed that a FileZilla server won't work properly (when connecting from a FileZilla client) if I configure it to use anything other than the default of port 990.