Re: low entropy on linux systems

2011-08-18 Thread Kevan Miller
On Aug 18, 2011, at 1:06 AM, Shawn Jiang wrote: This could increase the linux start up speed significantly. Does anyone know is it safe to add -Djava.security.egd=file:/dev/./urandom to our startup script directly. Don't know if it will break something on other linux/unix

Re: low entropy on linux systems

2011-08-18 Thread Russell E Glaue
Apache HTTPD Server, OpenSSL, and GPG support using EGD as an alternative for Unix systems which do not support the /dev/random device. EGD is written in perl (Entropy Gathering Daemon - http://egd.sourceforge.net/). PRNGD is written in C (Pseudo Random Number Generator Daemon -

Re: low entropy on linux systems

2011-08-17 Thread Shawn Jiang
This could increase the linux start up speed significantly. Does anyone know is it safe to add -Djava.security.egd=file:/dev/./urandom to our startup script directly. Don't know if it will break something on other linux/unix platforms. On Fri, Jul 15, 2011 at 10:19 AM, Kevan Miller

Re: low entropy on linux systems

2011-07-15 Thread Rainer Jung
On 15.07.2011 04:19, Kevan Miller wrote: From time to time I encounter a problem starting a Geronimo server on a Linux system (I've always seen it on Ubuntu -- but the problem could exist on other distributions). The server start seems to hang. However, if you're patient, which I rarely am,

Re: low entropy on linux systems

2011-07-15 Thread Rainer Jung
On 15.07.2011 15:56, Rainer Jung wrote: On 15.07.2011 04:19, Kevan Miller wrote: From time to time I encounter a problem starting a Geronimo server on a Linux system (I've always seen it on Ubuntu -- but the problem could exist on other distributions). The server start seems to hang.

Re: low entropy on linux systems

2011-07-15 Thread Kevan Miller
On Jul 15, 2011, at 10:03 AM, Rainer Jung wrote: snip And note that due to a bug in the JDK you really need to use /dev/./urandom or /dev//urandom and not /dev/urandom. Oracle themselves already internally use dev/urandom, but later they switch from /dev/urandom to

low entropy on linux systems

2011-07-14 Thread Kevan Miller
From time to time I encounter a problem starting a Geronimo server on a Linux system (I've always seen it on Ubuntu -- but the problem could exist on other distributions). The server start seems to hang. However, if you're patient, which I rarely am, the server will eventually start. If you're

Re: low entropy on linux systems

2011-07-14 Thread chi runhua
Kevan, thanks for letting us know. I've collected your description into G3.0 doc. https://cwiki.apache.org/GMOxDOC30/runtime-issues.html Jeff On Fri, Jul 15, 2011 at 10:19 AM, Kevan Miller kevan.mil...@gmail.comwrote: From time to time I encounter a problem starting a Geronimo server on a

Re: low entropy on linux systems

2011-07-14 Thread Jason Dillon
Installing rngd/rng-tools also can help fix these sorts of problems. --jason On Jul 14, 2011, at 7:19 PM, Kevan Miller wrote: From time to time I encounter a problem starting a Geronimo server on a Linux system (I've always seen it on Ubuntu -- but the problem could exist on other