search for: urandom

Small improvements and fixes to urandom.

...connecting and sending packets together with a script that > hotplug/unplugs vhost-vsock-pci from the host side. Yes, I started an SMP guest (-smp 4 -monitor tcp:127.0.0.1:1234,server,nowait) and I run these scripts to stress the .probe()/.remove() path: - guest while true; do cat /dev/urandom | nc-vsock -l 4321 > /dev/null & cat /dev/urandom | nc-vsock -l 5321 > /dev/null & cat /dev/urandom | nc-vsock -l 6321 > /dev/null & cat /dev/urandom | nc-vsock -l 7321 > /dev/null & wait done - host while true; do cat /dev/urandom | nc...

...connecting and sending packets together with a script that > hotplug/unplugs vhost-vsock-pci from the host side. Yes, I started an SMP guest (-smp 4 -monitor tcp:127.0.0.1:1234,server,nowait) and I run these scripts to stress the .probe()/.remove() path: - guest while true; do cat /dev/urandom | nc-vsock -l 4321 > /dev/null & cat /dev/urandom | nc-vsock -l 5321 > /dev/null & cat /dev/urandom | nc-vsock -l 6321 > /dev/null & cat /dev/urandom | nc-vsock -l 7321 > /dev/null & wait done - host while true; do cat /dev/urandom | nc...

Hey, I''m trying to install ruby on rails on windows xp with cygwin. I installed the rails gem but when I go to create an application I get the following : "No such file or directory - /dev/urandom" the error seems to be coming form secret_key_generator.rb line 22. But I can''t find a file of that name Thanks --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To p...

on solaris7/sparc this device doesn't exists i can use EGD but he very big (perl script!) - in memory it take about 4mb! apache use the same! why ssh1.27 doesn't requre /dev/urandom on solaris? what alternatives exists?

...the primary source of entropy is > > > virtio. > > > > Nope, I do not think that this is true: > > > > - /dev/random returns one byte for one byte of entropy received, but > > it has a lower limit of 64 bits > > > > - getrandom behaves like /dev/urandom (i.e. nonblocking) except > > during boot where it waits until the RNG has collected 128 bits > > before operating like a DRNG that is seeded once in a while when > > entropy comes in. > > > > > > Ciao > > Stephan > > I don't follow. Assuming y...

...the primary source of entropy is > > > virtio. > > > > Nope, I do not think that this is true: > > > > - /dev/random returns one byte for one byte of entropy received, but > > it has a lower limit of 64 bits > > > > - getrandom behaves like /dev/urandom (i.e. nonblocking) except > > during boot where it waits until the RNG has collected 128 bits > > before operating like a DRNG that is seeded once in a while when > > entropy comes in. > > > > > > Ciao > > Stephan > > I don't follow. Assuming y...

If you execute cat /dev/urandom at the xm console of a guest domain, it will spew garbage forever. Attempts to run xm destroy on it simply hang. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

I feel very silly asking this, because I saw the answer to this question one time and can't remember what it was. OpenSSH uses /dev/urandom or /dev/random which Solaris does not have (verified with a call to the Sun software folks). How do I make OpenSSH happy with a Solaris substitute for /etc/urandom? Thanks Tim Nibbe Supervisor of System Administration Sprint IP Dial Support Services

Hi, I maintain Kodi[1] in RPMFusion[2] and the latest version of Kodi, 18.0, is crashing when trying to browse the SMB network. The previous version, 17.x, worked fine. The backtrace shows that Samba was not able to open /dev/urandom, which can't be true and must be masking another issue. The issue occurs on any Fedora 28 or 29 system (multiple user reports[3]). SELinux is disabled and /dev/urandom is chmod' 666. Any pointers? Backtrace from samba-client-libs-4.9.1-2.fc29.x86_64: #0  0x00007fe785c0b53f in raise () f...

Hello, Being new to the list i hope this question has not been asked before.... As you might know Solaris 9 supportes /dev/random and /dev/urandom bij default and earlier version need to install a patch to have these devices.... But the configuration script under Solaris (Sparc/X86) does not test the existing of the devices... is this to be known as a error/bug? and is there a patch? thanks -- Kind regards, Luc Suryo

...urns out; we were wrong. NSA put the back door into Dual EC DRBG.) So it uses a strategy of an extremely conservative entropy estimator, and will allow N bytes to be /dev/random pool as the entropy estimator believes that it has gathered at least N bytes of entropy from environmental noise. /dev/urandom uses a different output pool from /dev/random (the random and urandom pools both draw from an common input pool). Originally the /dev/urandom pool drew from the input pool as needed, but it wouldn't block if there was insufficient entropy. Over time, it now has limits about how quickly it can...

...urns out; we were wrong. NSA put the back door into Dual EC DRBG.) So it uses a strategy of an extremely conservative entropy estimator, and will allow N bytes to be /dev/random pool as the entropy estimator believes that it has gathered at least N bytes of entropy from environmental noise. /dev/urandom uses a different output pool from /dev/random (the random and urandom pools both draw from an common input pool). Originally the /dev/urandom pool drew from the input pool as needed, but it wouldn't block if there was insufficient entropy. Over time, it now has limits about how quickly it can...

...gt; alessandro.baggi at gmail.com> wrote: > >> I made several test to see what happens and noticed that removing -S >> (--sparse) from rsync command problem does not occour. >> In another test, thinking about a problem on 0ed file, I tried file >> generation using /dev/urandom then /dev/zero and running rsync -avS the >> problem is disappeared. >> > https://wiki.archlinux.org/index.php/Sparse_file#Creating_sparse_files > > In short, rsync is being told to create sparse files with the -S flag, so > it does. Could you share what you did with the ur...

I have a new centos 6 install. Randomly i get out of memory messages and my ssh file transfer dies. I have tried this in filezilla as well as winscp. I have disabled motd in ssh and i also had entropy problems so i enacted rngd -r /dev/urandom -o /dev/random but did not stop the out of memory errors. I am seeing the below in the logs. It only occurs during ssh file transfers. Feb 28 17:18:19 web1 t of memory [13604]

[Note: this has already been sent to comp.os.linux.announce.] -----BEGIN PGP SIGNED MESSAGE----- It has come to my attention that the recent 1.6 release of MAKEDEV-C inadvertently created /dev/random and /dev/urandom with the wrong permissions. /dev/random and /dev/urandom should look like this: crw-r--r-- 1 root system 1, 8 Feb 21 14:42 /dev/random crw-r--r-- 1 root system 1, 9 Feb 21 14:42 /dev/urandom If they do not, please do "chmod 644 /dev/random /dev/urandom". ****...

I posted some questions a few months back and received lots of great help in getting my dovecot/postfix/LDAP setup working. Initially, I ran into the pipe failed too many open files error. I am running this setup on OpenBSD/sparc64 4.1-stable and so I put dovecot in its own class and upped the maxfiles setting for that class. This was back with dovecot 1.0 and everything worked fine. I

...s if fm_mapped_extents is greater 0. OCFS2 reports on sections bigger 1048576 there would be 0 mapped_extents which is wrong. I extended a userspace FIEMAP util [2] a bit to specify the start and length parameter [3] as an easier testcase. When we create a big file which has no holes dd if=/dev/urandom of=/mnt/kvm-images/urandom.img bs=1M count=1000 We get on lower sections the expected output: ./a.out /mnt/kvm-images/urandom.img 10000 10 start: 2710, length: a File /mnt/kvm-images/urandom.img has 1 extents: # Logical Physical Length Flags 0: 000000000000000...

if i want to learn more about implementing a /dev/urandom, where would be a good place to start? thanks, wendy -- wendy palm Cray OS Sustaining Engineering, Cray Inc. wendyp at cray.com, 651-605-9154

...with a script that > > hotplug/unplugs vhost-vsock-pci from the host side. > > Yes, I started an SMP guest (-smp 4 -monitor tcp:127.0.0.1:1234,server,nowait) > and I run these scripts to stress the .probe()/.remove() path: > > - guest > while true; do > cat /dev/urandom | nc-vsock -l 4321 > /dev/null & > cat /dev/urandom | nc-vsock -l 5321 > /dev/null & > cat /dev/urandom | nc-vsock -l 6321 > /dev/null & > cat /dev/urandom | nc-vsock -l 7321 > /dev/null & > wait > done > > - host > wh...