X-Git-Url: https://git.grml.org/?a=blobdiff_plain;f=grml_tips;h=f8334720f923c4ff52f7e32c1756328789573d41;hb=adf933a308269419ba1aa1932dfd25d6822c7202;hp=52bb33d35cd81da4c889b81e95baac29505d6c85;hpb=80fb9f1f338e55233aae47f3c5631adb5909fd19;p=grml-tips.git

diff --git a/grml_tips b/grml_tips
index 52bb33d..f833472 100644
--- a/grml_tips
+++ b/grml_tips
@@ -2867,3 +2867,25 @@ This will rename a file named img_2071.jpg to something like:
 if it was shot at 10:38 o'clock on 2007-08-17 (according to
 the information inside the exif header).
 -- 
+Calculate network / netmask:
+
+Usage examples:
+% ipcalc 10.0.0.28 255.255.255.0
+% ipcalc 10.0.0.0/24
+-- 
+Blacklist a kernel module:
+
+# blacklist <name_of_kernel_module>
+
+-> running 'blacklist hostap_cs' for example will generate an
+entry like this in /etc/modprobe.d/grml:
+
+blacklist hostap_cs
+alias hostap_cs off
+
+To remove the module from the blacklist again just invoke:
+
+# unblacklist <name_of_kernel_module>
+
+or manually remove the entry from /etc/modprobe.d/grml.
+--