A Site of Information and Ideas
I was having a retransmit issue with the above equipment, here’s how I got around it. On the Force10’s I ran this config as the Equallogic and the vHost iscsi ports have to be configured this way:
config
protocol spanning-tree rstp
no disable
interface GigabitEthernet x/x
description EQL or vHost iSCSI Port
no ip address
mtu 9252
switchport
flowcontrol rx on tx on
spanning-tree rstp edge-port
no shutdown
!
that’ll take the TCP retransmit down to below .05
1. To Enable Hibernate
NOTE: This step will restore the hiberfil.sys file, and the Allow hybrid sleep and Hibernate after Power Options under Sleep.
A) Open a Elevated Command Prompt.
B) In the elevated command prompt, type powercfg -h on and press Enter.
C) Close the elevated command prompt.
2. To Disable Hibernate
NOTE: This step will disable hibernation, delete the hiberfil.sys file, and remove the Allow hybrid sleep and Hibernate after Power Options under Sleep. This will also disable fast startup in Windows 8.
1. Open a Elevated Command Prompt.
2. In the elevated command prompt, type powercfg -h off and press Enter.
3. Close the elevated command prompt.
yum install gcc gcc-c++ make libpcap libpcap-devel gdbm-devel libpng-devel libtool libtool-libs rrdtool rrdtool-devel
yum install cairo-devel libxml2-devel pango-devel pango libpng-devel -y
yum install freetype freetype-devel libart_lgpl-devel wget gcc make -y
yum install perl-ExtUtils-MakeMaker -y
yum install graphviz -y
yum install subversion openssl-devel -y
cd /opt
wget http://oss.oetiker.ch/rrdtool/pub/rrdtool-1.4.5.tar.gz
tar -zxvf rrdtool-1.4.5.tar.gz
cd rrdtool-1.4.5
./configure –prefix=/usr/local/rrdtool
make && make install
yum install libpcap libpcap-devel gdbm gdbm-devel -y
yum install libevent libevent-devel -y
cd /opt
wget http://geolite.maxmind.com/download/geoip/api/c/GeoIP-1.4.8.tar.gz
tar -zxvf GeoIP-1.4.8.tar.gz
cd GeoIP-1.4.8
./configure
make && make install
yum install libtool automake autoconf -y
cd /opt
wget http://downloads.sourceforge.net/project/ntop/ntop/Stable/ntop-5.0.1.tar.gz
or
wget http://downloads.sourceforge.net/project/ntop/ntop/Prior%20Stable/ntop-4.1.0.tar.gz
tar zxvf ntop-4.1.0.tar.gz
cd ntop-4.1.0
./autogen.sh -prefix=/usr/local/ntop
make && make install
make install-selinux-policy
add “/usr/local/ntop/share/man” to “/etc/man.config”
useradd -M -s /sbin/nologin -r ntop
chown ntop:root /usr/local/ntop
chown ntop:ntop /usr/local/ntop/share/ntop
cd /usr/local/ntop/bin/
./ntop -u ntop -P /usr/local/ntop -A
vi /etc/sysconfig/iptables
Append the following rules before the final INPUT – REJECT line:
(note we’re running the webpage on port 3000 and receiving netflow traffic on port 9996)
-A INPUT -m state –state NEW -m tcp -p tcp –dport 3000 -j ACCEPT
-A INPUT -m state –state NEW -m udp -p udp –dport 9996 -j ACCEPT
Then restart iptables
service iptables restart
cd /usr/local/ntop/bin
./usr/local/ntop/bin/ntop -P /usr/local/ntop -u ntop -d -w 3000 -i eth0
test via webpage:3000
vi /etc/rc.local
add in
/usr/local/ntop/bin/ntop -P /usr/local/ntop -u ntop -d -w 3000 -i eth0
Setting web options:
The first time you open the ntop web interface you’ll need to do the following:
1. head to plugins -> netflow -> activate
This will activate netflow, don’t click the “yes” option as this will toggle it off again.
2. head to plugins -> netflow -> view/configure
3. Create a new collector named “eth#-collector” where # is the eth interface number you’re sending data to.
4. Edit this collector and ensure the following settings are in place:
– local collector udp port: 9996
– flow aggregation: none
– enable session handling: no
– assume ftp: no
– debug: off
5. Head to Admin -> Configure -> Preferences
6. change dot.path value to “/usr/bin/dot” (hit set when done)
7. head to http://code.google.com/apis/console and get a google maps API key (turn on Google maps API v2 and create a new browser-referrer key)
8. head back to Admin -> Configure -> Preferences
9. change google_maps.key value to your copied key (hit set when done)
10. stop ntop (killall ntop)
11. reboot server and confirm ntop starts upon boot.