Fmota Tech

Hey guys,

I know this is kind of off-topic on a Debian mailing list, but since there’s no Debian certification, I was considering taking RHCE. The thing is, RHCE fast track course is $3000, and so far, everything I’ve seen or read is pretty classic linux knowledge. So I was wondering what other people thought of it.

Is it worth something as a linux certification, in the context of working as an independant contractor for example ?

Considering I have about 7 years of linux sysadmin in my head, not specifically with red hat though, is it doable to just take the exam (with a bit of preparation before, eg. centos and a good book) ? The exam itself is $750.

Did I miss any other certification worth of interest ?

Please note that I’m not trying to create a religion war here (certification vs no certification or red hat vs debian), just trying to gather information. Please keep the trolls on leash

Thanks, Julien

Hello everyone,

In my maven pom, I have profiles defined and I have a environment file which changes a variable according to the profile name.

When I build maven within my SpringSource Tool Suite, in my target folder, the variable defined in the environment file doesnt not change according to the profile name. But in my target / project/environment.conf file, I do see the change.

When I try to use mvn clean install command from the command prompt, It still does not change. what could I be missing?

Thanks and Regards, Meenakshi

Several months ago I asked those on this list to give me their opinion of a web page that I wrote on building a custom kernel for Debian:

http://www.wowway.com/~zlinuxman/Kernel.htm

Responses were generally favorable, but among the calls for improvement were the following:

(1) instructions for building the kernel as a non-root user (2) instructions for building the kernel somewhere other than /usr/src (3) requests for a specific example which includes out-of-kernel-source-tree modules, with the Nvidia® proprietary graphics drivers being the most-requested example.

On that last point I promised a number of people that I would create an Nvidia example, but I’ve been sidetracked by other issues until recently. At long last, however, I have revised my web page in an attempt to address all of these issues. I have also added a table of contents to make it easier to go to quickly to a specific section. Section 10 is especially popular, since it is relevant to stock kernel users as well. I welcome further review and feedback, especially from those who wanted an Nvidia example. Is this the kind of thing you were looking for? Or did I miss the mark?

*Hi, I bought an usb wireless card (ralink 2800), in fact this card can be used as access point, there is an utility raui.exe ( I downloaded it from ralink site) which can manage the card, unfortunately I can’t find it for linux. I can used it as card, the driver already exists in package firmwire-ralink.

Somebody has an idea where can I find that utility or other which the procedure.

thanks a lot bela*

Hello list,

I have ran into a problem with apache and Openldap which I pinned down to gnutls.

I have a LDAP server set up with TLS (it also runs Debian) but connecting to it turns out to be a problem. It works fine for local or unencrypted connections but from another Debian box it doesn’t. Behold ldapsearch:

ldapsearch -d 1 -x -H ldaps://ahostname -D ‘cn=admin,dc=correct’ -w ‘lll’ ‘(cn=admin)’ ldap_url_parse_ext(ldaps://ahostname) ldap_create ldap_url_parse_ext(ldaps://ahostname:636/??base) ldap_sasl_bind ldap_send_initial_request ldap_new_connection 1 1 0 ldap_int_open_connection ldap_connect_to_host: TCP ahostname:636 ldap_new_socket: 3 ldap_prepare_socket: 3 ldap_connect_to_host: Trying 1.2.3.4:636 ldap_pvt_connect: fd: 3 tm: -1 async: 0 TLS: peer cert untrusted or revoked (0×42) ldap_err2string ldap_sasl_bind(SIMPLE): Can’t contact LDAP server (-1)

Connceting from a box running another distro works better:

ldap_url_parse_ext(ldaps://ahostname) ldap_create ldap_url_parse_ext(ldaps://ahostname:636/??base) ldap_sasl_bind ldap_send_initial_request ldap_new_connection 1 1 0 ldap_int_open_connection ldap_connect_to_host: TCP ahostname:636 ldap_new_socket: 3 ldap_prepare_socket: 3 ldap_connect_to_host: Trying 1.2.3.4:636 ldap_pvt_connect: fd: 3 tm: -1 async: 0 TLS trace: SSL_connect:before/connect initialization TLS trace: SSL_connect:SSLv2/v3 write client hello A TLS trace: SSL_connect:SSLv3 read server hello A

… etc etc.

Difference is, on Debian everything appears to be compiled with GnuTLS (including Openldap and Apache) whereas on the other distros I’ve tried Openssl is used.

So the obvious solution would be to use openssl but I suppose this would mean recompiling the Apache package – which may not be ideal from a stability viewpoint or to keep up wit security updates.

Would it be possible to install the certificate on the client side (=Apache) and somehow suggest it to trust the certificate?

On Wed, Sep 1, 2010 at 3:19 AM, James Corteciano wrote:

that’s not sticky, it’s the setgid bid. setgid directories is usually how you try to get some shared secondary group to own new files in a dir.

your php script probably removed the setgid bit. “Apache” isn’t creating any of these files, your scripts are.

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On 01.09.2010 08:24, 王科选 wrote:

The right list to discuss mod_jk is the Tomcat users mailing list.

To subscribe, send mail to

users-subscribe@tomcat.apache.org

I’ll give you a short answer, but if you need to proceed discussion, please repost to the other list.

sticky_session=1 is the default setting. In order to make sticky session work, you need to ingredients.

1) You need to set the attribute jvmRoute in server.xml of Tomcat to an individual value for each Tomcat instance. An example for setting jvmRoute is contained as a comment in the default server.xml file. The file is contained in the conf directory of Tomcat.

2) The member worker of the load balancer worker need to have the same names as the jvmRoute of the Tomcat to which they connect. In your above configuration those names are “tomcat1″ and “tomcat2″, so either you choose “tomcat1″ and “tomcat2″ as the jvmRoute values, or you change the names of the workers above to the jvmRoute values you have alredy chosen.

3) Tomcat appends its own jvmRoute at the end of the session id, separated with a dot. The session id is send to the client either via the JSESSIONID cookie, or via URL encoding (“…;jsessionid=…”).

4) mod_jk knows about that, extracts the value of the JSESSIONID cookie presented by the browser respectively extracts the id encoded in the URL, looks for the separating dot and extracts the jvmRoute from the id. The load balancing worker then searches for a member worker with the same name and uses that one for stickyness.

Regards,

Rainer

Aniruddha wrote:

There isn’t one canonically correct answer. There are many different ways to do it and different people will have different favorite methods.

I like booting the new machine with a live cdrom and then using rsync to clone the old system onto the new system’s disk over the network. Then install grub and boot the new system. If I want to set up disk mirroring then I do that first by using the debian-installer to do the work first so that it is ready to go and then do the rsync on top of it.

At other times I will move the new disks onto the old system, mount them and do the copy locally, then move them back into the new machine and boot it.

Bob

Hi Everyone,

I’m using 6.0.26 tomcat binary in my RHEL5 box, it was configured for high availability using DRBD, it was already working for more than a week already but all of a sudden it stopped working, tomcat just dies, restarting it manually does not help either.

Here’s my setup:

RHEL5 64bit Sun Java 1.6 SDK 64 bit Tomcat 6.0.29

Here’s my catalina.out log which is the same as the catalina.2010-09-01.log:

logs/catalina.out at org.apache.catalina.connector.MapperListener.destroy(MapperListener.java:176) at org.apache.catalina.connector.Connector.stop(Connector.java:1135) at org.apache.catalina.core.StandardService.stop(StandardService.java:596) at org.apache.catalina.core.StandardServer.stop(StandardServer.java:744) at org.apache.catalina.startup.Catalina.stop(Catalina.java:648) at org.apache.catalina.startup.Catalina$CatalinaShutdownHook.run(Catalina.java:692) Sep 1, 2010 1:44:26 PM org.apache.coyote.http11.Http11Protocol destroy INFO: Stopping Coyote HTTP/1.1 on http-8080 Sep 1, 2010 1:44:26 PM org.apache.catalina.connector.Connector stop SEVERE: Coyote connector has not been started