Kategoriarkiv: Linux

Forward and encrypt trafic with ssh

Udgivet den juli 10, 2004 af mike

Keep network traffic to arbitrary ports secure with ssh port forwarding. In addition to providing remote shell access and command execution, OpenSSH can also forward arbitrary TCP ports to the other end of your connection. This can be extremely handy … Læs resten →

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PPTP Tunneling

Udgivet den juli 10, 2004 af mike

Set up quick and easy VPN access using the Point-to-Point Tunneling Protocol. The Point-to-Point Tunneling Protocol (PPTP) is basically a means to set up PPP tunnels [Hack #81] automatically without needing to manually start a PPP daemon on the remote … Læs resten →

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Set up IPSEC under linux

Udgivet den juli 10, 2004 af mike

Secure your traffic in Linux with FreeS/WAN. The most popular way of configuring IPsec connections under Linux is to use the FreeS/WAN (http://www.freeswan.org) package. FreeS/WAN is made up of two components, KerneL IP Security (KLIPS) and pluto. KLIPS is the … Læs resten →

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Set up IPSEC under freebsd

Udgivet den juli 10, 2004 af mike

Use FreeBSD’s built-in IPsec support to secure your traffic. Using IPsec with IKE under FreeBSD requires enabling IPsec in the kernel and installing a user-land program, racoon, to handle the IKE negotiations. You’ll need to make sure that your kernel … Læs resten →

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Collect statics via IPTABLES

Udgivet den juli 10, 2004 af mike

Make your firewall ruleset do the work for you when you want to collect statistics. If you want to start collecting statistics on your network traffic but dread setting up SNMP, you don’t have to worry. You can use the … Læs resten →

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Argus monitor and keep trail of trafic

Udgivet den juli 10, 2004 af mike

Use Argus to monitor your network and to keep an audit trail of your traffic. Wouldn’t it be nice if you could keep a complete record of everything that happened on your network? It would certainly help to track down … Læs resten →

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Process accounts freebsd, linux / watch users in details

Udgivet den juli 10, 2004 af mike

Keep a detailed audit trail of what’s being done on your systems. Process accounting allows you to keep detailed logs of every command a user runs, including CPU time and memory used. From a security standpoint, this means the system … Læs resten →

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Aggregrate logs from remote sites

Udgivet den juli 10, 2004 af mike

Integrate collocated and other remote systems or networks into your central syslog infrastructure. Monitoring the logs of a remote site or just a collocated server can often be overlooked when faced with the task of monitoring activity on your local … Læs resten →

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Automatic log monitor

Udgivet den juli 10, 2004 af mike

Automatically generated log file summaries are fine for keeping abreast of what’s happening with your systems and networks, but if you want to know about events as they happen, you’ll need to look elsewhere. One tool that can help keep … Læs resten →

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Automatic sumarize your logs

Udgivet den juli 10, 2004 af mike

Wade through that haystack of logs to find the proverbial needle. If you’re logging almost every piece of information you can from all services and hosts on your network, no doubt you’re drowning in a sea of information. One way … Læs resten →

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