Securely copy files to Linux across a network

Use scp to copy files securely from one linux computer to another over a network. $ scp -r /folder/folder1 user@computer.com:/home/user/folder <enter>

where: /folder/folder1 is the source folder -r is for recursively copy user@computer.com: is the destination computer. This can also be an IP address /home/user/folder is the destination folder.

Once you type above command, you . . . → Read More: Securely copy files to Linux across a network

Nmap online – Network scans from the internet

You can use http://nmap-online.com It is the equivalent of scanning a system or network for open ports from outside of the network you are in.

Tata Indicom USB photon drivers and DNS Servers

DNS Servers 202.54.29.5 202.54.10.2 Drivers at http://www.sitsvc.com

Unbind MAC address for DSL Internet ISP

Many ISPs bind the MAC Address. If the NIC card changes, the internet stops working. To correct this problem: Note down your old MAC address # ifconfig eth0 hw ether This unbinds the old NIC and you can put the new MAC next.

Connect Reliance Phone to Net as Modem

1. Data cable from Samsung/LG 2. Connect to DUN 3. Insert R Connect CD 4. Choose handset model and cable type 5. Set phone to work as modem by typing *412 and press Call button. 6. Wait for SMS confirmation. 7. Connect PC to Phone with the data cable. 8. Restart the PC as per . . . → Read More: Connect Reliance Phone to Net as Modem

Install kppp for ordinary users

Create a group called dialout. Add specific users to the group dialout

# chown root.dialout /usr/sbin/kppp # chown root.dialout /usr/bin/consolehelper # chown root.dialout /usr/bin/kppp* # chmod 4750 /usr/sbin/kppp

You can now setup by typing /usr/sbin/kppp

Set up /usr/sbin/kppp on the KDE panel

Note that ordinary users cannot call /usr/bin/kppp as it requires root privileges. . . . → Read More: Install kppp for ordinary users

Modems in Linux

Ensure that Wait for Dialtone is deselected.

Kppp aborts with message “Unable to authenticate”

To remove the error, add line “noauth” to /etc/ppp/options.

Note that this solution may be obsolete.

September 2017
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