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Written by Oleksandr Gavenko (AKA gavenkoa), compiled at 2015-10-05
from rev 764bb173578d
.
Network.¶
Contents
Network managers.¶
Mainstream in Debian:
connman
- Intel Connection Manager daemon.
network-manager
- Network management framework (daemon and userspace tools).
wicd
- Wired and wireless network manager.
Misc:
netctl
- Come under
systemd
umbrella, absent in Debian.- WiFi Radar
- Python scripts that lanches another applications.
Ukraine internet provider.¶
Peoplenet.¶
User and password you get by sending SMS message to 920
number. Phone #777
.
DNS to IP address.¶
$ nslookup example.com
IP to DNS address.¶
$ nslookup 192.168.1.1
NetBIOS to IP address.¶
By nbtstat.exe command from MS you can print NetBIOS name cache with name-to-IP address mappings:
$ nbtstat -c
$ nbtstat -a NETBIOSNAME
IP to NetBIOS address.¶
$ nbtstat -A xxx.xxx.xxx.xxx
List of NetBIOS name.¶
$ nbtstat -r
List of open ports.¶
List of open ports under Windows.¶
cmd> netstat # with DNS name resolution, TCP only
cmd> netstat -n # without name resolution, TCP only
cmd> netstat -a -n # TCP and UDP
cmd> netstat -s # show IP, ICMP, TCP, and UDP statistics.
List of open ports under Linux.¶
-t
tcp, -u
udp, -l
local, -p
process:
$ sudo netstat -tulp
or to use port number instead of protocol name:
$ sudo netstat -tulpn
Which processes open port?¶
How disable IPv6?¶
Debian kernel 2.6/Ubuntu (“official” method)/Fedora Core.¶
Comment in /etc/modprobe.d/aliases “alias net-pf-10 ipv6” and add alias “net-pf-10 off”, “alias ipv6 off”:
$ sudo emacs /etc/modprobe.d/aliases
...
$ cat /etc/modprobe.d/aliases
...
# alias net-pf-10 ipv6
alias net-pf-10 off
alias ipv6 off
...
Reboot or:
$ sudo update-modules
Another way is adding to /etc/modprobe.d/blacklist.local lines:
blacklist ipv6
You can safely wipe out any IPv6 reference in /etc/hosts
and
/etc/network/interfaces
.
- http://wiki.debian.org/DebianIPv6
- DebianIPv6
RHEL4/Centos4.¶
As for Debian, but /etc/modprobe.d/aliases
has name /etc/modprobe.conf
.
Clear saved Windows networking passwords.¶
cmd> rundll32.exe keymgr.dll, KRShowKeyMgr
cmd> control userpasswords2 # another way