Memory Randomization - Linux default configuration

Hi,
lately I've been wondering if the Linux kernel has any ASLR (Address Space Layout Randomization) enabled by default. I know that PaX and grsecurity are in vanilla, but I've also read that by enabling these you will run into problems with X, MPlayer etc. Considering that exploits are made much, much harder when the bad guy doesn't know where his code is located in the heap, I presume that it would be worthwhile to use this technology as many of the modern exploits especially target applications the user uses to interact with the internet.
On a similar note, is the NX bit being used by default?
So, what's the current status and what does the near future look like?
Edit: Of course I meant the heap, not stack. Fixed, thanks dyscoria.
Last edited by tkdfighter (2009-03-27 14:06:36)

]So I did some reading on Wikipedia. grsecurity actually bundles PaX. Also, since version 2.6.12, the kernel has a weak form of ASLR enabled by default, as does OS X. Windows Vista has a more complete implementation. Reading this, it appears that the weak OS X implementation is not really sufficient. Miller doesn't really make a statement about Linux, but I assume you could argue that the same goes for Linux.
I can see though that PaX is not in vanilla, contrary to what I first thought, and that it doesn't support the most recent kernels.
Another question: why isn't there any protection for simple fork bombs in Arch by default? There is no distribution I know of that has nproc set in limits.conf by default. Some basic things like this would be kind of nice, as I'm sure that there are alot of trivial settings to improve security I and other users don't know about.

Similar Messages

Error message: ORA-27125: unable to create shared memory segment Linux-x86_

Hi,
I am doing an installtion of SAP Netweaver 2004s SR3 on SusE Linux 11/Oracle 10.2
But i am facing the follow issue in Create Database phase of SAPInst.
An error occurred while processing service SAP NetWeaver 7.0 Support Release 3 > SAP Systems > Oracle > Central System > Central System( Last error reported by the step :Caught ESAPinstException in Modulecall: ORA-27125: unable to create shared memory segment Linux-x86_64 Error: 1: Operation not permitted Disconnected
Please help me to resolve the issue.
Thanks,
Nishitha

Hi Ratnajit,
I am too facing the same error but my ORACLE is not starting,
Here are my results of following command:
cat /etc/sysctl.conf
# created by /sapmnt/pss-linux/scripts/sysctl.pl on Wed Oct 23 22:55:01 CEST 2013
fs.inotify.max_user_watches = 65536
kernel.randomize_va_space = 0
##kernel.sem = 1250 256000 100 8192
kernel.sysrq = 1
net.ipv4.conf.all.promote_secondaries = 1
net.ipv4.conf.all.rp_filter = 0
net.ipv4.conf.default.promote_secondaries = 1
net.ipv4.icmp_echo_ignore_broadcasts = 1
net.ipv4.neigh.default.gc_thresh1 = 256
net.ipv4.neigh.default.gc_thresh2 = 1024
net.ipv4.neigh.default.gc_thresh3 = 4096
net.ipv6.neigh.default.gc_thresh1 = 256
net.ipv6.neigh.default.gc_thresh2 = 1024
net.ipv6.neigh.default.gc_thresh3 = 4096
vm.max_map_count = 2000000
# Modified for SAP on 2013-10-24 07:14:17 UTC
#kernel.shmall = 2097152
kernel.shmall = 16515072
# Modified for SAP on 2013-10-24 07:14:17 UTC
#kernel.shmmax = 2147483648
kernel.shmmax = 67645734912
kernel.shmmni = 4096
# semaphores: semmsl, semmns, semopm, semmni
kernel.sem = 250 32000 100 128
fs.file-max = 65536
net.ipv4.ip_local_port_range = 1024 65000
net.core.rmem_default = 262144
net.core.rmem_max = 262144
net.core.wmem_default = 262144
net.core.wmem_max = 262144
And here is mine Limit.conf File
cat /etc/security/limits.conf
#<domain>      <type> <item>         <value>
#*               soft    core            0
#*               hard    rss             10000
#@student        hard    nproc           20
#@faculty        soft    nproc           20
#@faculty        hard    nproc           50
#ftp             hard    nproc           0
#@student        -       maxlogins       4
# Added for SAP on 2012-03-14 10:38:15 UTC
#@sapsys          soft    nofile          32800
#@sapsys          hard    nofile          32800
#@sdba            soft    nofile          32800
#@sdba            hard    nofile          32800
#@dba             soft    nofile          32800
#@dba             hard    nofile          32800
# End of file
# Added for SAP on 2013-10-24
#               soft    nproc   2047
#               hard    nproc   16384
#               soft    nofile 1024
#               hard    nofile 65536
@sapsys                 soft   nofile          131072
@sapsys                 hard   nofile         131072
@sdba                  soft nproc          131072
@sdba                  hard   nproc         131072
@dba                 soft    core           unlimited
@dba                 hard     core          unlimited
                  soft     memlock       50000000
                  hard     memlock       50000000
Here is mine   cat /proc/meminfo
MemTotal:       33015980 kB
MemFree:        29890028 kB
Buffers:           82588 kB
Cached:          1451480 kB
SwapCached:            0 kB
Active:          1920304 kB
Inactive:         749188 kB
Active(anon):    1136212 kB
Inactive(anon):    39128 kB
Active(file):     784092 kB
Inactive(file):   710060 kB
Unevictable:           0 kB
Mlocked:               0 kB
SwapTotal:      33553404 kB
SwapFree:       33553404 kB
Dirty:              1888 kB
Writeback:             0 kB
AnonPages:       1135436 kB
Mapped:           161144 kB
Shmem:             39928 kB
Slab:              84096 kB
SReclaimable:      44400 kB
SUnreclaim:        39696 kB
KernelStack:        2840 kB
PageTables:        10544 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    50061392 kB
Committed_AS:    1364300 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      342156 kB
VmallocChunk:   34359386308 kB
HardwareCorrupted:     0 kB
AnonHugePages:    622592 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:       67584 kB
DirectMap2M:    33486848 kB
Please let me know where i am going wrong.
Wat thing basically u check on /proc/meminfo command
Regards,
Dipak

Oracle taking too much memory in Linux

Hi.. I am using Oralce on linux 7.5
No any active session is running on server for oracle ..
But oracle taking too much memory in linux when I check with TOP command ..
16:08:29 up 19 days, 20:14, 2 users, load average: 5.32, 4.63, 3.78
227 processes: 226 sleeping, 1 running, 0 zombie, 0 stopped
CPU states: cpu user nice system irq softirq iowait idle
total 2.5% 0.0% 2.9% 0.4% 0.0% 91.8% 2.2%
cpu00 3.8% 0.0% 3.8% 0.0% 0.0% 92.2% 0.0%
cpu01 0.4% 0.0% 0.0% 0.0% 0.0% 99.5% 0.0%
cpu02 0.8% 0.0% 4.7% 1.7% 0.0% 85.7% 6.8%
cpu03 5.1% 0.0% 3.0% 0.0% 0.0% 89.6% 2.1%
Mem: 8203404k av, 8186192k used, 17212k free, 0k shrd, 7292k buff
6266516k actv, 1275016k in_d, 136704k in_c
Swap: 6289384k av, 10528k used, 6278856k free 7602904k cached
PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME CPU COMMAND
6224 oracle 15 0 1007M 1.0G 998M D 0.0 12.5 30:45 1 oracle
10628 oracle 15 0 1000M 998M 998M S 0.0 12.4 0:16 0 oracle
6230 oracle 15 0 945M 945M 943M S 0.0 11.7 82:33 1 oracle
10188 oracle 15 0 944M 942M 931M S 0.0 11.7 3:02 1 oracle
19128 oracle 15 0 909M 901M 899M S 0.0 11.2 2:49 2 oracle
6864 oracle 15 0 886M 886M 877M S 0.0 11.0 6:12 3 oracle
18586 oracle 22 0 883M 882M 880M D 1.9 11.0 1:15 0 oracle
6870 oracle 15 0 433M 432M 431M S 0.0 5.4 0:21 2 oracle
6421 oracle 15 0 337M 336M 335M S 0.0 4.2 1:07 2 oracle
8478 oracle 15 0 272M 271M 269M S 0.0 3.3 0:12 1 oracle
18250 oracle 15 0 256M 255M 252M S 0.0 3.1 0:38 0 oracle
6876 oracle 15 0 251M 250M 249M S 0.0 3.1 1:03 0 oracle
17926 oracle 15 0 225M 224M 223M S 0.0 2.8 0:01 1 oracle
19320 oracle 15 0 197M 196M 195M S 0.0 2.4 0:23 1 oracle
18116 oracle 15 0 168M 167M 165M S 0.0 2.0 0:04 2 oracle
19596 oracle 15 0 159M 158M 155M D 2.2 1.9 0:17 0 oracle
6228 oracle 15 0 156M 155M 142M S 0.0 1.9 12:05 1 oracle
18902 oracle 15 0 81612 71M 48364 S 0.0 0.8 3:07 3 oracle
19286 oracle 15 0 48420 46M 46412 S 0.0 0.5 0:03 0 oracle
6222 oracle 15 0 41496 40M 39684 S 0.0 0.4 9:38 3 oracle
19602 oracle 15 0 40324 38M 38164 S 0.0 0.4 0:00 2 oracle
5962 mysql 25 0 39168 38M 88 S 0.0 0.4 0:00 1 mysqld
5963 mysql 15 0 39168 38M 88 S 0.0 0.4 0:08 0 mysqld
5964 mysql 20 0 39168 38M 88 S 0.0 0.4 0:00 0 mysqld
5965 mysql 25 0 39168 38M 88 S 0.0 0.4 0:00 0 mysqld
5966 mysql 25 0 39168 38M 88 S 0.0 0.4 0:00 0 mysqld
5967 mysql 20 0 39168 38M 88 S 0.0 0.4 0:00 0 mysqld
5969 mysql 15 0 39168 38M 88 S 0.0 0.4 2:16 2 mysqld
5970 mysql 15 0 39168 38M 88 S 0.0 0.4 2:31 1 mysqld
5971 mysql 24 0 39168 38M 88 S 0.0 0.4 0:00 0 mysqld
5972 mysql 20 0 39168 38M 88 S 0.0 0.4 0:00 0 mysqld
6868 oracle 15 0 27312 26M 15204 S 0.0 0.3 8:21 3 oracle
19554 oracle 15 0 20920 19M 18192 S 0.0 0.2 0:00 3 oracle
6874 oracle 15 0 16904 16M 15400 S 0.0 0.2 1:15 1 oracle
19444 oracle 15 0 13636 12M 12004 S 0.0 0.1 0:00 1 oracle
19442 oracle 15 0 12964 12M 11324 S 0.0 0.1 0:00 1 oracle
19474 oracle 15 0 12708 12M 11076 S 0.0 0.1 0:00 2 oracle
Why oracle taking too much memory?
Any solution for this bec of that my updation takes too much time .
Edited by: harshalpatil on Oct 13, 2008 4:11 PM

Harsh,
1) What version of Oracle you running on 7.5 release of linux?
2)How did you come to the conclusion that because of this, your update is slow?
Cheers
Aman....

Setting Default Configuration in 1.4.2

Previous versions of Java Web Start had a default configuration file javaws.cfg which contained the default preferences. When JWS was installed on PCs in our intranet, we could switch the cfg file to one which, amongst other things, set the proxy correctly and disabled shortcut creation. Then when any other user logged on to the PC, they would get a copy of this cfg file.
But in JWS 1.4.2 there no longer seems to be a default cfg file. When a user logs on they get defaults which are incorrect for our environment. This is a problem when several different users share the same PC. Whenever a new user logs on to the PC and uses Java Web Start, we must set up the preferences manually.
Our users are in a call center and are not capable of setting preferences themselves. In fact in the past we have removed the JWS icon from the desktop because we don't want them to even know it exists. All they know how to do is click a link (to a jnlp document) on a web page.
Is there some way to set the default preferences at install time that I've missed?
Thanks,
Simon.

Educated guesswork mostly; read over the JavaOne "whats new with web start" to get a feel for the changes yourself (http://servlet.java.sun.com/javaone/sf2003/conf/sessions/display-1486.en.jsp). Several things here will lead to internal changes. While it's location isn't likely to change (they're in the right place now - in the user profile dir) the contents, structure and config files certainly will.
Biggest single change is the unification of Java Plugin and Web Start, according to the slides this includes the merging of the applet & web start caches and configuration dialogs (it's not a big leap to assume this means merging their config files also). The new 1.5 Jar Hyper Compression format will also doubtless come into play changing the very format of the Jars getting cached. The other big change is to the security system - both opening up the sandbox model and a new central administration system will mean that the preferences on a users machine may be overridden at any time by the administrator. The cache structure itself undergos a big change with the new 'System Cache' - given that users cannot read from another users profile, this system cache will need to be stored in some shared directory elsewhere. A move that will split normal operation into a pair of active caches further obfuscates assumptions about the internal structure somewhat. This only scratches the surface here - needless to say, big changes ahead.
For the 'system cache' It'll be interesting to see how the web start team get around the default privileges assigned to a domain user under XP typically doesn't allow writing to a directory outside of their user profile folder (default privs are restricted). Similarly I'd like to see how well the new JNLP file associations work out in a similar scenario. Adding a file association requires writing to the registry; this again is typically a prohibited operation requiring local administrator rights to the machine. I hope the web start team have come up with answers to these problems and not just take the Java update line of only working while the user is logged on as a local administrator (http://www.javadesktop.org/forums/thread.jspa?threadID=184&tstart=0). This severely limits your user base to non-networked single user machines (home users), the network admins machine and windows 98 & me boxes which don't share the security model.
Finally it's not a good idea to make any assumptions about the internal layout and contents of any of Sun's undocumented services, it's always going to be prone to change without warning. Developers make changes to these at their own peril and only have themselves to blame when their code suddenly stops working.
- Richard

Load default configuration in BIOS to fix sound, caused another problem

Hey !
I have had problem to get sound in my T61, and used Lenovo support, Troubleshooting, to fix it.
I did as it told in Lenovo Support.
In BIOS Setup utility menu setup I pressed F9.
Then I selected YES to load the default configuration.
After that I pressed F10 key and YES to save the configuration.
But after that when I start the computer it says that a failur has occured, and windows has shot down to avoid problems with the computer.
Is there any way of going back in the BIOS setup, so I should get it work again ?
Thanks in advance/ Kurt
Moderator edit: Subject edited for clarity.

Hi !
I solved it with money !
I went to a company, and they fixed it, Don't ask me how ! I did not understand when they described it.
Anyway I have another problem with the sound, as you can see in the other message !
They tried to fix that to, but could not solve the problem.
George

Dynamic Memory on Linux VM

Hello!
Hyper-V 3.0 is great! After it will be released, I think it will become the most popular hypervisor. But it remains a major drawback.
Nowhere announced support for dynamic memory for Linux VM on Hyper-V.
Planned at least in some perspective to implement this functionality?
Now we have to use two different hypervisors, as Hyper-V does not meet all the requirements of our customers.
Mark Tepterev
Oversun

~
~
Moved P.P.P.S.
Q from Brian Wong:
----- Original Message -----
From: "Brian Wong"
To: <[email protected]>
Sent: Thursday, March 06, 2014 9:24 AM
Subject: Re: Linux does not use more than the startup RAM under Hyper-V with dynamic memory enabled
On 3/6/2014 1:20 AM, Brian Wong wrote:
> The kernel is built with the full set of Hyper-V drivers, including the
> key "Microsoft Hyper-V Balloon Driver" as well as memory hot-add and
> hot-remove functionality. This is happening with both the Gentoo-patched
> 3.10.32 kernel and the vanilla 3.12.5 kernel. The host machine has a
> total of 24 GB of memory.
>
> For now, I am working around the issue by starting the VM with the
> startup memory set to the maximum and letting Hyper-V take the usused
> memory back when it is not in use. The VM will then get the extra memory
> when it needs it.
>
> Have I encountered a bug in the Hyper-V balloon driver?
>
Just a correction: the vanilla kernel version is 3.13.5, not 3.12.5.
Sorry for any confusion.
Brian Wong
http://www.fierydragonlord.com
----- Original Message -----
From: "Brian Wong"
To: <[email protected]>
Sent: Thursday, March 06, 2014 9:20 AM
Subject: Linux does not use more than the startup RAM under Hyper-V with dynamic memory enabled
I'm new to LKML, so please don't be too hard on me :)
I'm running Gentoo Linux under Microsoft Client Hyper-V on Windows 8.1
Pro, and I've noticed some odd behavior with respect to dynamic memory
(aka memory ballooning). The system will never use more than the startup
memory defined in the virtual machine's settings.
( VVM: typewriting error viRtual fixed by me, for best search in future )
For example, if I set the startup memory to 512 MB, and enable dynamic
memory with a minimum of 512 MB and a maximum of 8192 MB, the system
will never allocate than 512 MB of physical memory, despite Hyper-V
assigning more memory to the VM and the added memory being visible in
the output of "free" and "htop". Attempting to use more memory causes
the system to start paging to swap, rather than actually allocating the
memory above the startup memory assigned to the VM.
The kernel is built with the full set of Hyper-V drivers, including the
key "Microsoft Hyper-V Balloon Driver" as well as memory hot-add and
hot-remove functionality. This is happening with both the Gentoo-patched
3.10.32 kernel and the vanilla 3.12.5 kernel. The host machine has a
total of 24 GB of memory.
Brian Wong wrote On 3/6/2014 1:20 AM:
Just a correction: the vanilla kernel version is 3.13.5, not 3.12.5. )
For now, I am working around the issue by starting the VM with the
startup memory set to the maximum and letting Hyper-V take the usused
memory back when it is not in use. The VM will then get the extra memory
when it needs it.
Have I encountered a bug in the Hyper-V balloon driver?
Brian Wong
http://www.fierydragonlord.com
----- Original Message -----
From: "Victor Miasnikov"
To: [email protected]; "Brian Wong"
Cc: "Abhishek Gupta (LIS)" ( zzzzzzzzzzzzzzz (at) microsoft.com>; "KY Srinivasan" zzzzzzzzzzz (at) microsoft.com
Sent: Thursday, March 06, 2014 1:07 PM
Subject: Re: Linux does not use more than the startup RAM under Hyper-V with dynamic memory enabled RE: [PATCH 2/2]
Drivers: hv: balloon: Online the hot-added memory "in context" Re: [PATCH 1/1] Drivers: hv:
Hi!
Short:
Question to Linux kernel team:
may be patch
>>> [PATCH 2/2] Drivers: hv: balloon: Online the hot-added memory "in context"
can solve problems with dynamic memory hot add in Hyper-V VMs with Linux OS ?
Full:
BW>> .., if I set the startup memory to 512 MB, and enable dynamic
BW>> memory with a minimum of 512 MB and a maximum of 8192 MB,
BW>> the system will never allocate than 512 MB of physical memory
BW>>
BW>> Have I encountered a bug in the Hyper-V balloon driver?
BW>>
Unfortunately, It's long story . . . :-(
a)
I already ( on January 09, 2014 2:18 PM ) write about problems with "Online the hot-added memory" in "user space" see
P.P.S.
b)
See
Bug 979257 -[Hyper-V][RHEL6.5][RFE]in-kernel online support for memory hot-add
https://bugzilla.redhat.com/show_bug.cgi?id=979257
( Info from this topic may be interessant not only for RedHat users )
b2)
Detail about pathes related problem "Online the hot-added memory" in "user space" :
>>> [PATCH 2/2] Drivers: hv: balloon: Online the hot-added memory "in context"
>>>
>>>
>>> === 0001-Drivers-base-memory-Export-functionality-for-in-kern.patch
>>> . . .
>>> +/*
>>> + * Given the start pfn of a memory block; bring the memory
>>> + * block online. This API would be useful for drivers that may
>>> + * want to bring "online" the memory that has been hot-added.
>>> + */
>>> +
>>> +int online_memory_block(unsigned long start_pfn) { struct mem_section
>>> +*cur_section; struct memory_block *cur_memory_block;
>>>
>>> . . .
>>> ===
>>>
>>>
>>> ==
>>> . . .
>>> == 0002-Drivers-hv-balloon-Online-the-hot-added-memory-in-co.patch
>>>   . . .
>>>    /*
>>> -   * Wait for the memory block to be onlined.
>>> -   * Since the hot add has succeeded, it is ok to
>>> -   * proceed even if the pages in the hot added region
>>> -   * have not been "onlined" within the allowed time.
>>> +   * Before proceeding to hot add the next segment,
>>> +   * online the segment that has been hot added.
>>>     */
>>> - wait_for_completion_timeout(&dm_device.ol_waitevent, 5*HZ);
>>> + online_memory_block(start_pfn);
>>>
>>>   }
c)
Before apply patches ( see in P.S. about native udev-script) we are need use one of this methods:
[ VVM:   URL of this topic skipped ]
c1)
"/bin/cp method" by Nikolay Pushkarev :
Following udev rule works slightly faster for me (assuming that memory0 bank always in online state):
SUBSYSTEM=="memory", ACTION=="add", DEVPATH=="/devices/system/memory/memory[1-9]*",
RUN+="/bin/cp /sys$devpath/../memory0/state /sys$devpath/state"}}
( VVM : of course all need be place in one line, 2 line in this msg. -- only for good visual formating reasons )
c2)
udev rule using "putarg" by Nikolay Pushkarev :
Even "/bin/cp method" udev rule work time to time not as need :-(
As a result, Nikolay Pushkarev write a program putarg.c, that is even faster than "/bin/cp method" :
==
#include <stdio.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <string.h>
int main(int argc, char** argv) {
int i, fd;
if (argc < 2) return 0;
if ((fd = open(argv[1], O_RDWR)) < 0) return 1;
for (i = 2; i < argc; i++) {
    if (write(fd, argv[i], strlen(argv[i])) < 0) {
      close(fd);
      return i;
close(fd);
return 0;
==
The first argument - the name of the output file ,
and argument number 2 ( and all subsequent ( if exist ) ) - are text that are wiil be written in output file.
Compile source code to executable file by run command:
gcc -o putarg -s putarg.c
The resulting binary need be placed an accessible location , such as /usr/bin, or wherever you want.
Now udev rule using "putarg" can be written as :
SUBSYSTEM=="memory", ACTION=="add", RUN+="/usr/bin/putarg /sys$devpath/state online"
This complex solutions ( compiled file and udev-rule ) works exceptionally fast.
Best regards, Victor Miasnikov
Blog: http://vvm.blog.tut.by/
P.S.
Nikolay Pushkarev about standart udev-script :
Strange, that the native udev-script
SUBSYSTEM=="memory", ACTION=="add", ATTR{state}="online"
triggered somehow through time ( VVM: very often not work as need )
P.P.S.
----- Original Message -----
From: "Victor Miasnikov"
To: "Dan Carpenter"; "K. Y. Srinivasan" ; <[email protected]>
Cc: "Greg KH" ; <[email protected]>; <olaf (at) aepfle.de>; ""Andy Whitcroft"" <zzzzzzzzzzzz (at)
canonical.com>;
<jasowang (at) redhat.com>
Sent: Thursday, January 09, 2014 2:18 PM
Subject: RE: [PATCH 2/2] Drivers: hv: balloon: Online the hot-added memory "in context" Re: [PATCH 1/1] Drivers: hv:
Implement the file copy service
Hi!
> Is there no way we could implement file copying in user space?
For "file copy service" "user space" may be pretty good
But I ( and other Hyper-V sysadmin) see non-Ok ( in "political correct" terminalogy) results with "hv: balloon: Online
the hot-added memory" in "user space"
==
[PATCH 2/2] Drivers: hv: balloon: Online the hot-added memory "in context"
==
What news? Roadmap?
Best regards, Victor Miasnikov
Blog: http://vvm.blog.tut.by/
~
~
~
~
~
~
~
~
~
----- Original Message -----
From: "KY Srinivasan"
To: "Victor Miasnikov"; [email protected]; "Brian Wong"
Cc: "Abhishek Gupta (LIS)"
Sent: Thursday, March 06, 2014 1:23 PM
Subject: RE: Linux does not use more than the startup RAM under Hyper-V with dynamic memory enabled RE: [PATCH 2/2]
Drivers: hv: balloon: Online the hot-added memory "in context" Re: [PATCH 1/1] Drivers: hv:
> -----Original Message-----
> From: Victor Miasnikov
> Sent: Thursday, March 6, 2014 3:38 PM
> To: [email protected]; Brian Wong
> Cc: Abhishek Gupta (LIS); KY Srinivasan
> Subject: Re: Linux does not use more than the startup RAM under Hyper-V
> with dynamic memory enabled RE: [PATCH 2/2] Drivers: hv: balloon: Online
> the hot-added memory "in context" Re: [PATCH 1/1] Drivers: hv:
>
Victor,
I will try to get my in-context onlining patches accepted upstream.
K. Y

MS ssis service: registry setting specifying configuration file does not exist. attempting to load default configuration file. SQLIService100 - event id 274

window 2008 R2 server ---- after installing SQL 2008 R2 then applying sp2 / sp3 I noted a warning -
Note this server had SQL 2008 R2 uninstalled previously.
MS ssis service: registry setting specifying configuration file does not exist. attempting to load default configuration file.
SQLIService100 - source
event id- 274
user - N/A
Task category - service control.
Do we need to fix something and how do we fix this warning event?
dsk

You could search online for this warning. I was able to find http://superuser.com/questions/346264/event-log-warning-registry-setting-specifying-configuration-file-does-not-exist
where the fix is "in your registry, go to:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSDTS\ServiceConfigFile
or
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\100\ServiceConfigFile
if value is empty then add in:
C:\Program Files\Microsoft SQL Server\100\DTS\Binn\MsDtsSrvr.ini.xml"
Arthur
MyBlog
Twitter

How to retrive the overwritten SAP Default Configuration

Hi There,
I was trying to enhance the component BT115IT_SLSO to add some new fields into the table view Items.
I copied the view configuration to my Z config key but by mistake & added the fields into the default view and saved the changes. Now the default configuration is screwed up.
Can some one point out how to retrive the SAP standard configuration( where it is stored ). In the configuration tab of the view the configuration looks ok but in Web UI I see all the columns available in the context node, and makes the view useless, when I go to the personlization of the view all fields shows the message < Error in Meta data > and I can not see the details of the fields.
I have already backed off my enhancement. Now I want to retrive the view configuration.
Your help will be highly appreciated.
Thanks,
Vikash.

Issue resolved.
Solution was In BSP workbench when I went to choose configuration I saw that just next to std conf there was column for cust conf. and both were marked X so I deleted the conf and that gave me the standard conf back.
Thanks,
Vikash.

Configuring the default configuration profile for Profile Manager

Hello folks,
I would like to edit the default configuration profile served by Profile Manger. As far as I understand the only thing I can configure from the Server.app is the name of the profile. The settings for the different services provided by the server (such Mail, Messages, etc.) are automatically chosen by Server.app. When logging as an administrator on the Profile Manager webapp, I can go to "Groups", choose "Everyone", go to "Settings" to review the different payloads. However, almost none of the settings are editable. You can read "This payload is configured using the Server app" on the top of the various panels.
So my question is: How do you use Server to tweek those payloads? Can this be done using the serveradmin command line tool?
Thank you very much for your help.
Regards

Bump. This is annoying the crap out of me. Every time I try to design a website using Coda, this color picker bug plagues me. I just wish I could turn off color profiles completely as I will never use them.

Default Configuration Lines on Nexus 5000

What is the purpose of these default configuration lines? What do they mean? I can't find an explanation of them anywhere. I believe some are written to the config when FCoE is enabled....
I would like to know exactly what they are doing.
I DO have an idea but I would like to have each line explained, one at a time, so that I can understand how Cisco implements PFC and ETS and how they identify system classes, etc....
class-map type qos class-fcoe
class-map type queuing class-fcoe
match qos-group 1
class-map type queuing class-all-flood
match qos-group 2
class-map type queuing class-ip-multicast
match qos-group 2
class-map type network-qos class-fcoe
match qos-group 1
class-map type network-qos class-all-flood
match qos-group 2
class-map type network-qos class-ip-multicast
match qos-group 2
system qos
service-policy type qos input fcoe-default-in-policy
service-policy type queuing input fcoe-default-in-policy
service-policy type queuing output fcoe-default-out-policy
service-policy type network-qos fcoe-default-nq-policy

What is the purpose of these default configuration lines? What do they mean? I can't find an explanation of them anywhere. I believe some are written to the config when FCoE is enabled....
I would like to know exactly what they are doing.
I DO have an idea but I would like to have each line explained, one at a time, so that I can understand how Cisco implements PFC and ETS and how they identify system classes, etc....
class-map type qos class-fcoe
class-map type queuing class-fcoe
match qos-group 1
class-map type queuing class-all-flood
match qos-group 2
class-map type queuing class-ip-multicast
match qos-group 2
class-map type network-qos class-fcoe
match qos-group 1
class-map type network-qos class-all-flood
match qos-group 2
class-map type network-qos class-ip-multicast
match qos-group 2
system qos
service-policy type qos input fcoe-default-in-policy
service-policy type queuing input fcoe-default-in-policy
service-policy type queuing output fcoe-default-out-policy
service-policy type network-qos fcoe-default-nq-policy

"Use Default Configuration" on OIF test page

On the OIF testing page
http://host:port/fed/user/testspsso, there is an option "Use Default Configuration". with this option checked, some of fields on the page disabled
-- How can I find out ahat are the default configurations being used currently?
-- uncheck "Use Default Configuration" and leave those fields as "Not Selected" , what is the differece between the "Use Default Configuration" options checked and those fields disabled as "Not Selected" ?
Thanks

Hi,
Allow ALL for the new ScriptAlias and Directory you have added in the httpd.conf file. For example ..
If you add --> ScriptAlias /custom-bin/ "/u01/applmgr/mycgi/bin/", then "/u01/applmgr/mycgi/bin/" is the directory.
Regards,
Hussein

Default configuration parameters

'Show run' don't show default configuration parameters, interface specific default parameters. It only shows manually entered commands only.
Is there any way to find out default all hidden configuration commands and values?

It's been seven years since someone else asked this question, so I'm looking for an update.
We just bought a UC560, mainly intending it as our new VoIP phone controller:
Cisco IOS Software, UC500 Software (UC500-ADVIPSERVICESK9-M), Version 15.0(1)XA2, RELEASE SOFTWARE (fc2)
Compiled Sat 06-Mar-10 04:52 by prod_rel_team
ROM: System Bootstrap, Version 15.0(1r)XA, RELEASE SOFTWARE (fc1)
Apparently it can also do routing, NAT, DHCP, and a basic firewall. I wasn't planning to use it for that, and was planning to migrate from Netware 6.5 routing/firewall to Microsoft RRAS, but I guess if this Cisco box can do it, might as well.
But I am not (yet?) a Cisco certified tech so I don't have the 1000 command line options and defaults all memorized.
If I enable DHCP, can it tell me the default address lease time? Does the Cisco DHCP ping addresses before assigning them, to avoid accidental overlaps? "show running_config" only shows what we have configured, not what the any of the defaults are..

EMCLI default configuration directory

How do I find the default configuration directory for EMCLI on the OMS host? I changed the EM Console ports and need to re-configure EMCLI to use the new port. I can get the configuration using:
$ $OMS_HOME/bin/emcli setup
Oracle Enterprise Manager Cloud Control 12c Release 2.
Copyright (c) 1996, 2012 Oracle Corporation and/or its affiliates. All rights reserved.
Instance Home : /u01/app/oracle/Middleware/gc_inst/em/EMGC_OMS1/sysman/emcli/setup/.emcli
Verb Jars Home : /u01/app/oracle/Middleware/gc_inst/em/EMGC_OMS1/sysman/emcli/setup/.emcli
EM URL : https://oms1.example.com:7799/em
EM user : sysman
Trust all certificates : true
Auto login : false
But it doesn't display the configuration directory. I'd like to re-use the existing directory.
Thanks,
Leighton

Hello Leighton,
have you tried to change this using:
./emcli setup -url=http://myworkstation.us.oracle.com:em_port/em -username=em_user
Regards
Rob
http://oemgc.wordpress.com

Linux 9i2 Configuration assistants can't find jre

Installing database 9i2 on RedHat Linux 7.2.
Install succeeds. Post install Configuration Assistants failed to start because "jre not found in $ORACLE_HOME/oracle.swd.jre/bin/i386/native_threads/jre"
Why not? What to do now? I am 'dead in the water' until I can get some help.
Thanks.

Whoopee! I now have a clean install and a functioning Oracle 9i2 database installed on my RedHat Linux 7.1 system!!!
Thank you gentlemen ... thank you all who have provided guiding counsel.
Ultimately there were two "tricks" which allowed me to get the clean install. The first was to select the custom install and re-direct the installation directory for the jre1.3.1 to some other directory than the default. The default installation directory was the same directory into which the jre1.1.8 was installed. This solved the problem that the configuration assistants could not find the jre.
The second trick was to set the kernel parameter shmmax to 400000000 by (as root)
echo 400000000 > /proc/sys/kernel/shmmax
This solved the problem of the end-of-file on communication channel.
There was a similar suggestion to remove all the shared memory segments owned by oracle. That did not work for me. I tried them both; only the shmmax set was effective.
You all have been such a help to me that I feel I owe somebody something for your help. I will make it a point to keep checking this forum for the next month or so to see if I can offer some useful suggestions to some other poor soul who is trying so hard to get this Oracle beast i[i]Long postings are being truncated to ~1 kB at this time.

Where is Acrobat Reader 7.0 (Linux) default printer setting saved?

I have a GNU/Linux based system with Firefox/Acrobat Reader v7.0 plugin installed.
I need to set a specific printer for the Reader plugin to use prior to starting the browser.
In AcrobatReader version 5.x, I modified the file 'AcroRead' which contained the line "*lprCommand:/usr/bin/lpr" and added a '-P Queuename'.
Is there an equivelent to this in the Reader7.0 environment?
TIA,
Tom

Unfortunately, that doesn't cover requirements.
This is an environment where I need to configure the printer for the user every time prior to starting the browser. The users are on a thin client; when the client reboots (nightly) any saved configuration is wiped out.
I need to set the 'user defaults' for each user, on each workstation, every time the software (Firefox, Acrobat Reader, etc) is launched.
The defaults are not stored on the client system -- they are saved on a network accessible server. Using a shell script, a base configuration downloaded from the network server, and based on various criteria, (location, username, client ID, ... ), various defaults get set every time the workstation boots.

Memory Randomization - Linux default configuration

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