In short, the reason considering (and still only considering) turning it off is to make tripwire usable again (security vs. performance, I guess). Is it possible to completely turn it off system-wide? Any additional steps needed on the existing system (that already have half of the binaries prelinked)? What order of performance degradation to expect? If it is minor, nobody is going to cry about it. My old RH 7.3 systems don't have prelinking, and I don't see them being any slower than FC2 and newer systems that have prelinking... ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program.
alex at milivojevic.org wrote:> In short, the reason considering (and still only considering) turning it off is > to make tripwire usable again (security vs. performance, I guess). >in /etc/sysconfig/prelink change PRELINKING to no to undo the changes you can run `prelink -ua` - KB -- Karanbir Singh : http://www.karan.org/ GnuPG Public Key : http://www.karan.org/publickey.asc
alex at milivojevic.org wrote:>In short, the reason considering (and still only considering) turning it off is >to make tripwire usable again (security vs. performance, I guess). >I really don't have any answers to your questions concerning prelinking, but have you considered alternatives to tripwire, such as: * AIDE * Samhain * Osiris to name a few. Last time I tried, these all worked with the latest *NIX, prelinking or no. --Shawn
On Thu, Jun 16, 2005 at 11:06:27AM -0500, alex at milivojevic.org wrote:> What order of performance degradation to expect? If it is minor, nobody is > going to cry about it. My old RH 7.3 systems don't have prelinking, and I > don't see them being any slower than FC2 and newer systems that have > prelinking...As I understand it, the biggest impact will be on startup times for big C++ applications -- KDE and Mozilla, maybe OpenOffice.org. I haven't tested extensively, but here we turn off prelinking for exactly this reason. -- Matthew Miller mattdm at mattdm.org <http://www.mattdm.org/> Boston University Linux ------> <http://linux.bu.edu/> Current office temperature: 76 degrees Fahrenheit.