daniels's questions

I have Jenkins running on a CentOS7 and it kind of crashes from time to time and I'd like to restart it automatically when this happens. Googleing a bit I've found that on Systemd you can use Restart=on-failure but the problem is that from what I see Jenkins does not use a service file.

If I do systemctl status jenkins.service I get:

● jenkins.service - LSB: Jenkins Continuous Integration Server
   Loaded: loaded (/etc/rc.d/init.d/jenkins)
   Active: active (running) since Mon 2016-02-29 17:30:08 UTC; 11min ago

So looks like it's still using init.d? Any idea how I can use this Restart=on-failure in this case?

Right now /mnt/resource is owned by root and only root can read/write. How can I make this readable/writable by other users on the system?

And this should be persistent (i.e. after system restart it should still work)

I installed Jenkins and configured it to send emails as being sent from "[email protected]" but the address is always changed when email is being sent and I receive the mail as being sent from "[email protected]".

I've installed Sendmail and Jenkins is configured to use 127.0.0.1 as mail server.

Any idea why Sendmail replaces the FROM domain when email is being sent?

The hostname of the server is properly set (when I run hostname I do get "jenkins.example.com").

Same way if I send an email from command line echo "This is the body" | mail -s "Subject" [email protected]

From where does it take this default.vps.example.com domain? Where is this default domain configurable?

LE: in my sendmail.mc I have define(confDOMAIN_NAME', jenkins.domain.com')dnl and I generated the sendmail.cf file m4 sendmail.mc > sendmail.cf and restarted sendmail. Still doesn't work.

LE2:

ADDRESS TEST MODE (ruleset 3 NOT automatically invoked)
Enter <ruleset> <address>
> canonify           input: jenkins @ jenkins . example . com
Canonify2          input: jenkins < @ jenkins . example . com >
dns_getcanonname(jenkins.example.com, trymx=1)
dns_getcanonname: trying jenkins.example.com. (AAAA)
    YES
dns_getcanonname: trying default.vps.example.com. (AAAA)
    NO: errno=0, h_errno=4
dns_getcanonname: trying default.vps.example.com. (A)
    YES
dns_getcanonname: default.vps.example.com
Canonify2        returns: jenkins < @ default . vps . example . com . >
canonify         returns: jenkins < @ default . vps . example . com . >
>

I have a local folder on my Mac that I want to sync with a WebDAV server.

There are a lot of files in my folder. After I edit some files or add/remove folders, I want to be able to sync the changes to the WebDAV server, ignoring what it is on the server and always using my files.

Is there any script or tool that I can use from command line to do that?

And mounting the resource is not a solution.

I need to redirect the output of pv command to a file so i get read it's progress from another process. Or is it any other way i could do that?

I have a CenOS server and i want to enable PHP error logging to a file. I have edited the php.ini file and set

error_log = /var/log/httpd/phperror.log

and also

log_errors = On

I've restarted the apache server with service httpd restart but still the /var/log/httpd/phperror.log does not get created and no errors are logged. Any idea why?

I have a remote server (different country) with currently no physical access. Is there a way to do a remote clean install of Debian?

Is there somewhere where i can find out what is the Debian file system layout? I would like to create a folder and inside of that folder i want to install Apache, PHP, MySQL, PostgreSQL but i want to install them in the same way as if they were installed in a Debian distro using apt for example.

i.e.: binaries in /usr/bin, conf in /etc (in my case ./MyFolder/etc/) etc..

So whant i am looking is where can i find out what exactly is the place that the files of Apache, PHP, MySQL are placed in debian?

I need to do a svn checkout on a server that's not mine and i just have a quick question. If i do a:

svn checkout https://path.to/svn/trunk/ folder --username myusername

Will my username and password be saved so that when i disconnect from that server someone will be able to just do svn update or svn comit with my credentials?

LE:

I'll will connect to a linux server (CentOS - but i don't thinks the distro is relevant) through ssh and i will run those commands from the shell (bash), and then after the checkout and maybe some updates i will disconnect.

I have a PostgreSQL database on a Debian box and i've (from the shell):

su postgres
createdb dnls
createuser dnls -P
Enter password for new user: somepass [enter]
Enter it again: somepass [enter]
Shall the new user be allowed to create databases? (y/n) n [enter]
Shall the new user be allowed to create more new users? (y/n) n [enter]

After that i added the user/pass/dbname in my Django app settings.py and then i did a manage.py syncdb and django created the tables for my models.

How come the dnls user has read/write permissions to dnls database?
I did not gived him any permissions anywhere.
Does he has access just because the database has the same name as him? This doesn't look secure.

Something that will run in background and alert me on mail if some ip is port scanning the server.

Ok so i wanted to give nginx a try and while setuping my Django app through FastCGI i encountered a issue. FastCGI is running ok but static files give me 404. Here is my config:

server {
 listen   80;
 server_name  localhost;
 access_log  /var/log/nginx/default.access.log;


 location /static/public {
  autoindex on;
  index index.html;
  root /home/daniels/djangoapp/public;
 } 

 location / {
  include /etc/nginx/fastcgi_params;
  fastcgi_pass unix:/home/daniels/djangoapp/djangoapp.sock;
 }

 # redirect server error pages to the static page /50x.html
 #
 #error_page   500 502 503 504  /50x.html;
 #location = /50x.html {
 # root   /var/www/nginx-default;
 #}
}

Anything that i try to access as http://127.0.0.1/static/public/ gives a 404
eg: http://127.0.0.1/static/public/css/sytle.css which is at /home/daniels/djangoapp/public/css/style.css gives 404

Any idea what's wrong?

LE:

2010/02/20 22:31:42 [error] 3411#0: *3 open() "/home/daniels/djangoapp/public/img/static/public/img/background.jpg" failed (2: No such file or directory), client: 10.0.2.2, server: localhost, request: "GET /static/public/img/background.jpg HTTP/1.1", host: "127.0.0.1"

So it seems that it appends the /static/public part from location directive to the root

LE2:
Ok, i'm really sorry about the typos, but this was made when i copy & pasted the log and edited the name of the app. What seems to happen is that for /static/public i have root set to /home/daniels/djangoapp/public so for http://127.0.0.1/static/public/test.jpg i was expecting nginx to look for the file at /home/daniels/djangoapp/public/test.jpg but instead it looks for it at /home/daniels/djangoapp/public/static/public/test.jpg
It seems that it appends an extra /static/public to the path.

I have this shell command:

kill `cat -- $PIDFILE`

What the double -- does here? Why not use just

kill `cat $PIDFILE`

I'd like to use Lighttpd in production for serving Django apps but i see that these days Nginx is more and more popular. Why is that? I'm aware that in the past Lighttpd had memory leaks but isn't this fixed now? They do have active developers that fix this kind of things don't they?
Is there any reason i should go with Nginx instead of Lighty? I know that nginx is a great server but is it really that good and better than lighty?

I want that when certain users login they will have a menu instead of accessing the shell with some options that i will configure. I've seen somewhere a perl script (using ncurses i think) that did this but i didn't saved the link and now i can't seem to find it anymore. Anybody aware of anything like this available?

I have a Linux server running Debian which acts as a router/gateway for a network.
The server has 3 NICs on eth0 is the main ISP, on eth1 the backup ISP and on eth2 the network.
Is it possible to setup a script or something that will check if the connection with the main ISP is up and if not to switch(and setup the routes properly) to the backup ISP?

What is the equivalent for "service servicename start" that Fedora/RHEL/CentOS uses for Debian/Ubuntu?
I've just read on some question here on serverfoault that using /etc/init.d/service is obsolete, so what's the correct way on Debian?

I have a network of about 30 Windows PCs.

What good free software is available that will automatically (scheduled) make backups (not whole HDD but only certain folders) for these PCs and save on a remote server which will be used only for storing the backups? Preferably the server will run Linux and the backups will be stored via FTP, where each PC will have its own FTP account.

What other antispam software (server side) is available besides SpamAssassin?