sudo nano /etc/nsswitch.conf
hosts: files wins dns mdns4_minimal [NOTFOUND=return]
sudo nano /etc/avahi/avahi-daemon.conf
use-ipv6=no
disable ipv6 in wifi/eth0 interfaces
sudo ufw disable
sudo sysctl vm.swappiness=10
sudo su
echo "#disable ipv6" >> /etc/sysctl.conf
echo "net.ipv6.conf.all.disable_ipv6 = 1" >> /etc/sysctl.conf
echo "net.ipv6.conf.default.disable_ipv6 = 1" >> /etc/sysctl.conf
echo "net.ipv6.conf.lo.disable_ipv6 = 1" >> /etc/sysctl.conf
sudo nano /etc/samba/smb.conf
add
netbios name = linuxlap1
name resolve order = lmhosts wins bcast host