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nixCraft Linux / UNIX Newsletter |
| Linux: 25 Iptables Netfilter Firewall Examples For New SysAdmins Posted: 15 Jun 2018 06:17 PM PDT Linux comes with a host based firewall called Netfilter. The netfilter is a set of hooks inside the Linux kernel that allows kernel modules to register callback functions with the network stack. A registered callback function is then called back for every packet that traverses the respective hook within the network stack. This Linux based firewall is controlled by the program called iptables to handles filtering for IPv4, and ip6tables handles filtering for IPv6. I strongly recommend that you first read our quick tutorial that explains how to configure a host-based firewall called Netfilter (iptables) under CentOS / RHEL / Fedora / Redhat Enterprise Linux. If you are using Ubuntu/Debian Linux, see how to setup UFW for more info. This post lists most simple iptables solutions required by a new Linux user to secure his or her Linux operating system from intruders. The post Linux: 25 Iptables Netfilter Firewall Examples For New SysAdmins appeared first on nixCraft. |
| How To: FreeBSD install VIM text editor using pkg and ports Posted: 15 Jun 2018 06:15 PM PDT How do I install VIM text editor for my FreeBSD server? I like vim as it is a highly configurable text editor and efficient one. Currently, it has an old version of vi. How can I install vim text editor on a FreeBSD server or desktop? The post How To: FreeBSD install VIM text editor using pkg and ports appeared first on nixCraft. |
| How to configure Samba to use SMBv2 and disable SMBv1 on Linux or Unix Posted: 15 Jun 2018 06:13 PM PDT I am a new Linux user and for security reasons and to avoid ransomware, I would like to disable the SMB1 protocol in samba configuration on a CentOS Linux version 7 server. Is it possible to disable SMBv1 on a Linux or UNIX-like operating system? The post How to configure Samba to use SMBv2 and disable SMBv1 on Linux or Unix appeared first on nixCraft. |
| Linux / UNIX Desktop Fun: Steam Locomotive - get train in shell Posted: 15 Jun 2018 06:11 PM PDT One of the most common mistake is typing sl instead of ls command. I actually set an alias i.e. alias sl=ls; but then you may miss out the steam train with whistle. The post Linux / UNIX Desktop Fun: Steam Locomotive - get train in shell appeared first on nixCraft. |
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