short hostname is fine, although the installer did not let you
grep HOSTNAME /etc/rc.d/rc.M vi /etc/HOSTNAME
static name resolution
cp -pi /etc/hosts hosts.dist vi /etc/hosts 127.0.0.1 localhost x.x.x.x slack.localdomain slack x.x.x.x gw
identify your network interfaces as usual with either mii-tool or ethtool, then
mv -i /etc/rc.d/rc.inet1 /etc/rc.d/rc.inet1.dist
chmod -x /etc/rc.d/rc.inet1.dist
vi /etc/rc.d/rc.inet1 #newfile
#!/bin/bash
echo rc.inet1 PATH is $PATH
if [[ $1 = stop || $1 = down ]]; then
#dhclient -r
route delete default
ifconfig eth0 down
ifconfig lo down
else
echo -n lo...
ifconfig lo up && echo done
#self verbose
modprobe 8021q
vconfig add eth1 XXXX
echo -n eth1.XXXX...
ifconfig eth1 mtu 9000 txqueuelen 10000 up
ifconfig eth1.XXXX mtu 9000 txqueuelen 10000 x.x.x.x/xx up && echo done
#dhclient -v eth0
echo -n eth0...
ifconfig eth0 x.x.x.x/xx up && echo done
echo -n default route...
route add default gw x.x.x.x && echo done
fi
chmod +x /etc/rc.d/rc.inet1
now if you want XEN and/or links aggregation - you can mix this with bridges and bonding
apply and check,
/etc/rc.d/rc.inet1 ping -W1 -c1 208.67.222.222
DNS
cat /etc/resolv.conf cat > /etc/resolv.conf <<-EOF nameserver x.x.x.x #nameserver 208.67.222.222 #nameserver 208.67.220.220 EOF ping -W1 -c1 opendns.com
for eth in eth0 eth1 eth2 eth3; do mii-tool $eth; done; unset eth
Why and How to Increase and decrease txqueuelen (Transmit Queue Lenght) in GNU / Linux http://www.pc-freak.net/blog/why-and-how-to-increase-and-decrease-txqueuelen-transmit-queue-lenght-in-gnu-linux/
Linux Increasing The Transmit Queue Length (txqueuelen) https://www.cyberciti.biz/faq/gentoo-centos-rhel-debian-fedora-increasing-txqueuelen/
a better way to shut the NICs down would be
downall() {
for netif in `ifconfig | egrep '^[[:alpha:]]+: ' | cut -f1 -d:`; do
[[ $netif = lo ]] && continue
ifconfig $netif down
done; unset netif
exit 0
}
[[ $1 = stop ]] && downall