Internet | Linux Ask!

Show the Domain Name Servers for a domain

Basic Linux, Commands, Internet No Responses »

Nov 302010

Show the Domain Name Servers for a domain

Answer:

To show the Domain Name Servers for a domain, use the command below:

E.g. example.com

# nslookup -type=ns example.com
Server:         203.98.160.11
Address:        203.98.160.11#53

Non-authoritative answer:
example.com     nameserver = b.iana-servers.net.
example.com     nameserver = a.iana-servers.net.

Authoritative answers can be found from:
a.iana-servers.net      internet address = 192.0.34.43
b.iana-servers.net      internet address = 193.0.0.236
b.iana-servers.net      has AAAA address 2001:610:240:2::c100:ec

Enable compression during scp transfer

Basic Linux, Internet No Responses »

Nov 162010

Enable compression during scp transfer

Answer:

When you transfer files which are mainly text based using scp command, it is always good to compress them to save the bandwidth needed.

To do so:

# scp -C test.txt john@remoteserver:/home/john/

What is the SMTP submission port 587?

Basic Linux, Internet No Responses »

Nov 072010

What is the SMTP submission port 587?

Answer:

A lot of ISPs will block the port 25 for preventing users from sending spam emails. To send email if you use such ISPs, you need to use port 587.

Port 587 is the official port for sending email on mail submission agents (MSAs), as defined in RFC 2476

Block website access in Linux

Basic Linux, Internet No Responses »

Nov 062010

Block website access in Linux

Answer:

The simple way to block access to web site is to change the hosts file.

1. Open the hosts file

# sudo vi /etc/hosts

2. Change the content, such as...

0.0.0.0 microsoft.com
0.0.0.0 oracle.com

3. Save the file.

Empathy cannot connect to MSN

Internet No Responses »

Nov 022010

Empathy cannot connect to MSN

Answer:

To solve the problem of cannot connect to MSN using Empathy

1. Open the following file to edit:

gksudo gedit /usr/share/pyshared/papyon/service/description/SingleSignOn/RequestMultipleSecurityTokens.py

2. Find the following line...

CONTACTS = ("contacts.msn.com", "?fs=1&id=24000&kv=7&rn=93S9SWWw&tw=0&ver=2.1.6000.1")

3. Replace the line by

CONTACTS = ("contacts.msn.com", "MBI")

Close and restart Empathy should work.

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