How do I install iptables under Redhat (RHEL) or CentOS or Fedora Linux operating systems?
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ssh client
How do I run Firefox browser from the command line (shell prompt)? How to run Firefox from command line on Linux based server?
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How do I display a list of bridges under Linux? How do I show info about the Ethernet bridge configuration in the Linux kernel?
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Recently, my desktop hard disk crashed. So I reinstalled Linux and created a new set of private RSA keys for authentication. However, two of my remote UNIX servers still uses old DSA keys. I do not remember root password for those servers. I do have backup of private and public DSA keys and currently stored in /backup/home/user/.ssh/id_dsa and /backup/home/user/.ssh/id_dsa.pub. How do I force my ssh clients to use identity file /backup/home/user/.ssh/id_dsa to get back to my remote UNIX servers?
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I’ve root ssh access and need to add / delete a few IP address on fly using the IPtables command via local shell script. How do I add or delete an IP address remotely over the SSH session under CentOS / Redhat / RHEL / Debian / Ubuntu Linux?
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