Gentoo Archives: gentoo-hardened

From: Hinnerk van Bruinehsen <h.v.bruinehsen@×××××××××.de>
To: gentoo-hardened@l.g.o
Subject: Re: [gentoo-hardened] Re: Required Priorities (Security) = slow server
Date: Fri, 17 Aug 2012 12:03:49
Message-Id: 502E15A2.4030200@fu-berlin.de
In Reply to: Re: [gentoo-hardened] Re: Required Priorities (Security) = slow server by Grant
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4 On 17.08.2012 11:47, Grant wrote:
5 >>>> I recently moved my server from:
6 >>>>
7 >>>> 3.2.11-hardened Security Level (Hardened Gentoo [server])
8 >>>>
9 >>>> to:
10 >>>>
11 >>>> 3.4.5-hardened Configuration Method (Automatic) Usage Type
12 >>>> (Server) Virtualization Type (None) Required Priorities
13 >>>> (Security)
14 >>>>
15 >>>> and http became extremely slow. Some pages that would
16 >>>> normally execute in 1 second would take 10 seconds or more.
17 >>>> There is a lot of php and perl server-side stuff so the
18 >>>> slowdown may have been rooted in that. I changed to Required
19 >>>> Priorities (Performance) and everything sped back up to
20 >>>> normal. My laptop was moved to the following at the same
21 >>>> time and I didn't notice any performance change:
22 >>>>
23 >>>> 3.4.5-hardened Configuration Method (Automatic) Usage Type
24 >>>> (Desktop) Virtualization Type (None) Required Priorities
25 >>>> (Security)
26 >>>>
27 >>>> Is this sort of behavior expected from a server?
28 >>>>
29 >>>> - Grant
30 >>>
31 >>> This may have been a false alarm. I think I've been having
32 >>> intermittent network problems to part of the internet. Can
33 >>> anyone confirm that the above config shouldn't slow down an
34 >>> http server?
35 >>>
36 >>> - Grant
37 >>>
38 >>
39 >> It's hard to make any generalisations but I have some servers
40 >> with similar grsec-autoconfig (server instead of desktop) and no
41 >> noticable slowdown (I'd say nothing more that 10%). I'd recommend
42 >> to use 3.5.1-r2 (testing) or 3.2.27 (stable), though.
43 >>
44 >> WKR Hinnerk
45 >
46 > 3.4.5 is the latest stable, right?
47 >
48 > http://packages.gentoo.org/package/sys-kernel/hardened-sources
49 >
50 > I'm using Server too. I'm using Desktop on my laptop.
51 >
52 > - Grant
53 >
54
55 Sorry,
56 I misread the part about the laptop. As far as I remember the only
57 supported versions by Upstream are 2.6.32.59 and 3.2.27 as stable and
58 3.5.2 as testing (the versions on grsecurity.net, right now).
59 Other versions aren't supported by upstream.
60 Actually I'm not sure what is stable for gentoo since I'm using ~arch
61 myself.
62
63 - - Hinnerk
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Subject Author
Re: [gentoo-hardened] Re: Required Priorities (Security) = slow server Grant <emailgrant@×××××.com>