nginx plugin: Changed to the version 4 plugin infrastructure.

[collectd.git] / README

diff --git a/README b/README
index 57ae455..338ea4b 100644 (file)
--- a/README
+++ b/README
@@ -69,6 +69,11 @@ Features
       Iptables' counters: Number of bytes that were matched by a certain
       iptables rule.
 
+    - ipvs
+      IPVS connection statistics (number of connections, octets and packets
+      for each service and destination).
+      See http://www.linuxvirtualserver.org/software/index.html.
+
     - irq
       IRQ counters: Frequency in which certain interrupts occur.
 
@@ -145,6 +150,9 @@ Features
     - tape
       Bytes and operations read and written on tape devices. Solaris only.
 
+    - tcpconns
+      Number of TCP connections to specific local and remote ports.
+
     - users
       Users currently logged in.
 
@@ -218,8 +226,8 @@ Operation
   * When the `csv' or `rrdtool' plugins are loaded they'll write the values to
     files. The usual place for these files is beneath `/var/lib/collectd'.
 
-  * When using some of the plugins, collectd needs to run as user root, since only
-    root can do certain things, such as craft ICMP packages needed to ping
+  * When using some of the plugins, collectd needs to run as user root, since
+    only root can do certain things, such as craft ICMP packages needed to ping
     other hosts. collectd should NOT be installed setuid root since it can be
     used to overwrite valuable files!
 
@@ -236,6 +244,17 @@ Operation
     the values and read the rrdtool(1) manpage thoroughly.
 
 
+collectd and chkrootkit
+-----------------------
+
+  If you are using the `dns' plugin chkrootkit(1) will report collectd as a
+  packet sniffer ("<iface>: PACKET SNIFFER(/usr/sbin/collectd[<pid>])"). The
+  plugin captures all UDP packets on port 53 to analyze the DNS traffic. In
+  this case, collectd is a legitimate sniffer and the report should be
+  considered to be a false positive. However, you might want to check that
+  this really is collectd and not some other, illegitimate sniffer.
+
+
 Prerequisites
 -------------
 
@@ -298,20 +317,20 @@ Prerequisites
 Crosscompiling
 --------------
 
-    To compile correctly collectd needs to be able to initialize static
-    variables to NAN (Not A Number). Some C libraries, especially the GNU
-    libc, have a problem with that.
+  To compile correctly collectd needs to be able to initialize static
+  variables to NAN (Not A Number). Some C libraries, especially the GNU
+  libc, have a problem with that.
 
-    Luckily, with GCC it's possible to work around that problem: One can define
-    NAN as being (0.0 / 0.0) and `isnan' as `f != f'. However, to test this
-    ``implementation'' the configure script needs to compile and run a short
-    test program. Obviously running a test program when doing a cross-
-    compilation is, well, challenging.
+  Luckily, with GCC it's possible to work around that problem: One can define
+  NAN as being (0.0 / 0.0) and `isnan' as `f != f'. However, to test this
+  ``implementation'' the configure script needs to compile and run a short
+  test program. Obviously running a test program when doing a cross-
+  compilation is, well, challenging.
 
-    If you run into this problem, you can use the `--with-nan-emulation'
-    configure option to force the use of this implementation. We can't promise
-    that the compiled binary actually behaves as it should, but since NANs
-    are likely never passed to the libm you have a good chance to be lucky.
+  If you run into this problem, you can use the `--with-nan-emulation'
+  configure option to force the use of this implementation. We can't promise
+  that the compiled binary actually behaves as it should, but since NANs
+  are likely never passed to the libm you have a good chance to be lucky.
 
 
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