8 FAQ tagged "Iptables"
Viewing 1-8 of 8 FAQ -- psad: Linux Detect And Block Port Scan Attacks In Real Time
Q. How do I detect port scan attacks by analyzing Debian Linux firewall log files and block port scans in real time? How do I detect suspicious network traffic under Linux?
- Understanding CentOS Default -A RH-Firewall-1-INPUT -p 50 -j ACCEPT Firewall Rule
Q.Can you explain the meaning of following two firewall rules present in my /etc/sysconfig/iptables rules under CentOS Enterprise Linux version 5.2?
-A RH-Firewall-1-INPUT -p 50 -j ACCEPT
-A RH-Firewall-1-INPUT -p 51 -j ACCEPT - APF Linux Firewall Open Port 22 From Specific / Selected IP Address Only
Q. I’ve CentOS Linux server configured with APF firewall. How do I open port 22 from specific IP address only? I’ve fix static ADSL IP address assgined and I’d like to open port 22 from my IP 202.5.1.3 only using APF firewall script. How do I configure firewall?
- How To Run Linux Web Server / Service on Private IP Network
Q. I’ve only one public IP address assigned by my ISP using metro Ethernet connection. eth0 has public IP and eth1 is connected to our network switch. How do I configure Linux box to forward traffic to my web server hosted at 192.168.1.100 IP address?
- Display the Natted / Routed Connections on a Linux Iptable Firewall
Q. I’ve Linux box acting as software router (natted) for over 100 computer connected via LAN. Regular netstat command is not displaying the list of all natted connections. How do I find out connections managed by netfilter / iptables which comes with the Debian 4.x system?
- How to: Disable firewall on RHEL / CemtOS / Redhat Linux
Q. I don’t want firewall because I only run one http (port 80) public service. How do I turn off or disable firewall permanently under RHEL?
A. iptables is administration tool / command for IPv4 packet filtering and NAT.
service is a command to run a System V init script. It is use to [...] - Linux Firewall: Display Status and Rules of Iptables Firewall
Q. How do I display / list all rules in the selected chain? How do I find out which rules are active? What is blocked and opened with my firewall?
A. To List all rules in the selected chain use the -L option. If no chain is selected, all chains are listed. As [...] - Linux Passive FTP Not Working Problem And Solution
Q. I’m running GNU/Linux system with FTP server and passive ftp client requests are not working. What can I do to fix this problem under Linux iptables Firewall?
Viewing 1-8 of 8 FAQ - ( see all popular tags )
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