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My Oldest Openbsd machine running DHCP server , Smokeping Graph ( Monitoring latency ) , MRTG (Multi Router Traffic Grapher) also SQUID ( proxy Cache ) Apache ( default installed come with openbsd ).

Basicly i must make sure my new machine working with squid and compatibel with my latest squid configuration ( exsample: No Facebook & Youtube on working hour ).

After finish install squid ( if you have problem install application on openbsd you follow in here )

If you have squid and want monitoring they was a great tool to do that , is call Cachemgr.

At Cachemgr will be show you healthy Squid so i configure squid to use it only 2 options must be activate.

cachemgr_pass your_password all

cache_mgr you_name_user

dont forget to squid -z [create swap disk) before runing squid.

You copy cachemgr.cgi from /usr/local/libexec/cachemgr.cgi to /var/www/cgi-bin/

and make newfiles cachemgr.conf put in /etc/

Ussually when monitoring your healthy squid using cachemgr.cgi you must activated your webserver then you can access in

http://ipyoursquidserver/cgi-bin/cachemgr.cgi

if you can’t access it and show error message internal error and you findout in apache error log like this :

error log from webserver “Premature end of script headers: /cgi-bin/cachemgr.cgi “

that show your cachemgr.cgi need to be check , as we know default webserver(apache) on openbsd running in chroot enviroment so when we installed script or application need more threatmen.

here to resolv it .

#ldd /usr/local/libexec/cachemgr.cgi
/usr/local/libexec/cachemgr.cgi:
Start End Type Open Ref GrpRef Name
1c000000 3c00e000 exe 1 0 0 /usr/local/libexec/cachemgr.cgi
0f554000 2f55c000 rlib 0 1 0 /usr/lib/libm.so.5.2
0c7b1000 2c7ba000 rlib 0 1 0 /usr/lib/libpthread.so.13.1
00084000 200b8000 rlib 0 1 0 /usr/lib/libc.so.58.0
0752a000 0752a000 rtld 0 1 0 /usr/libexec/ld.so

That show library file need to running cachemgr.cgi so you must copy it to chroot.

#mkdir -p /var/www/usr/lib/

#mkdir -p /var/www/usr/libexec

#cp /usr/lib/libm.so.5.2 /var/www/usr/lib/

#cp /usr/lib/libpthread.so.13.1 /var/www/usr/lib/

#cp /usr/lib/libc.so.58.0 /var/www/usr/lib/

#cp /usr/libexec/ld.so /var/www/usr/libexec/

and try againt …. you will show login page

and that it for to day have a nice day

Premature end of script headers: /cgi-bin/cachemgr.cgi is a post from: Hapus Website

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