Changing the automatic sort of the host name

Nagios Nagios Configuration support
1

Hello all,

I am wanting to change the way that nagios sorts the hosts in the Nagios Web interface. It is only a small tweak that I would like to have in Nagios. Here are a couple of pics to show what I would like to do. The first pic is of what usually is in Nagios, and the second pic has shows the hosts being monitored in acsending order:

Normal: img223.imageshack.us/my.php?image=pic1sb5.png

Sorted ascending: img89.imageshack.us/my.php?image=pic2dn1.png

I do not know whether or not this is possible. I am curious if this can be done in Nagios without having to select the option to sort the host by acsending order everytime you want it that way, instead configuring a possible config file for such an option to be done automatically. Main question, is this possible?

2

Good news!
Yes, it is possible!
but well…as it is open source, everything is possible :slight_smile:

anyway, I don’t know of any config files to change that…and never heard of it (which doesn’t mean that it doesn’t exist, btw!).

So, what I could suggest is to do a simple modification in the source files:
go in the directory where you put the sources of nagios (before you compiled them).
In this directory, you will find a “cgi” folder => go in there
You’ll find status.c and status.cgi.

Open status.c
Find this string: “servicefilter cgi var”; and then add the part in bold below (too bad: the bold balise doesn’t work in a code snippet…)

[code] /* servicefilter cgi var */
else if(!strcmp(variables[x],“servicefilter”)){
x++;
if(variables[x]==NULL){
error=TRUE;
break;
}
service_filter=strdup(variables[x]);
strip_html_brackets(service_filter);
}
}

    **if (group_style_type==STYLE_HOST_DETAIL){
            sort_type=1;
            sort_option=1;
    }**
    /* free memory allocated to the CGI variables */
    free_cgivars(variables);

    return error;
    }[/code]

Save the file and exit.
Remove the status.cgi file
and launch “make” in this folder…
this will create a new file “status.cgi”; you’ll just have to replace the old one in “nagios-dir/sbin” and here you go:
when you click on “host detail” in the web interface, the hosts will be sorted alphabetically!!
(I assumed you wanted it in the “host detail” panel … Hope I assumed correctly :))

Anyway, the good point is that I’ve “shown” you where and how you can change this kind of things …
So with a bit of pratice and curiosity, you can change pretty much everything.

good louck :wink:

3

That didnt work for some reason… I ran “make” as well as inserting the new code and replacing the old status.cgi in nagios/sbin. What did I miss? I would also like to have that for the “Service Detail” in the Nagios Webinterface, when the different hosts are displayed. Do you know where I need to configure that? Would I use the same code as before for the host detail?