Linux Development – Page 10

Compile python3 on SLES 11 SP2

Install following RPMs before Steps:

libopenssl-devel-0.9.8j-0.50.1
zlib-devel-1.2.3-106.34

1 2	libopenssl-devel-0.9.8j-0.50.1 zlib-devel-1.2.3-106.34

Python3 source from: Python 3.3.5

Without zlib-devel, You cannot enable zlib module built-in, install this RPM and re-compile python3 src.
about bzip2, SLES doesnt provide extra bzip2-devel package, so just install bzip2 RPM is ok.

Without libopenssl-devel, you cannot fetch https URL via easy_install, it reports “unknown url type: https”

To Enablle ipython notebook:

Please install sqlite-devel package: (UN OFFICIAL)
http://software.opensuse.org/package/sqlite3-devel
Im using:

http://software.opensuse.org/ymp/server:database/SLE_11_SP2/sqlite3-devel.ymp
?base=SUSE%3ASLE-11%3ASP2&amp;query=sqlite3-devel

yast2  OneClickInstallUI sqlite3-devel.ymp

http://software.opensuse.org/ymp/server:database/SLE_11_SP2/sqlite3-devel.ymp

?base=SUSE%3ASLE-11%3ASP2&query=sqlite3-devel

yast2 OneClickInstallUI sqlite3-devel.ymp

1. install zeromq: # for pyzmq

zypper -p http://download.opensuse.org/repositories/home:/fengshuo:/zeromq/SLE_11_SP2/ -v in zeromq
zypper -p http://download.opensuse.org/repositories/home:/fengshuo:/zeromq/SLE_11_SP2/ -v in zeromq-devel

1 2	zypper -p http://download.opensuse.org/repositories/home:/fengshuo:/zeromq/SLE_11_SP2/ -v in zeromq zypper -p http://download.opensuse.org/repositories/home:/fengshuo:/zeromq/SLE_11_SP2/ -v in zeromq-devel

Guide here: http://zeromq.org/distro:sles

2. install dependencies:
easy_install pyzmq jinja2 tornado
easy_install sphinx readline
##### easy_install pysqlite # DO NO RUN THIS CMD. here hit bug, fixing… pysqlite doesn’t support python3 now, use internal sqlite3

3. run #ipython notebook ok.

Install Ipython notebook on Fedora 15

Ipython now provides RPM(python-ipython-notebook) from Fedora 18.
http://ipython.org/install.html

Fedora 15 is too old… not providing RPM, but we can also install very easy.

1. Install zeromq: (Im using i686 boxes, no yum servers now provided for the old release, you can google for the RPMs)

zeromq-2.1.9-1.fc15.i686.rpm 
zeromq-devel-2.1.9-1.fc15.i686.rpm

1 2	zeromq-2.1.9-1.fc15.i686.rpm zeromq-devel-2.1.9-1.fc15.i686.rpm

2. using easy_install:

easy_install ipython
easy_install pyzmq
easy_install pyzmq tornado

easy_install ipython

easy_install pyzmq

easy_install pyzmq tornado

3. Run the service in your own directory:

[suse@suse ~/workspace/ipython-notebook]$ipython notebook

1	[suse@suse ~/workspace/ipython-notebook]$ipython notebook

...Created profile dir: u'/home/suse/.ipython/profile_default'
...Using MathJax from CDN: http://cdn.mathjax.org/mathjax/latest/MathJax.js
...Serving notebooks from local directory: /home/suse/workspace/ipython-notebook
...0 active kernels 
...The IPython Notebook is running at: http://127.0.0.1:8888/
...Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
...INFO:tornado.access:302 GET / (127.0.0.1) 1.20ms

...Created profile dir: u'/home/suse/.ipython/profile_default'

...Using MathJax from CDN: http://cdn.mathjax.org/mathjax/latest/MathJax.js

...Serving notebooks from local directory: /home/suse/workspace/ipython-notebook

...0 active kernels

...The IPython Notebook is running at: http://127.0.0.1:8888/

...Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).

...INFO:tornado.access:302 GET / (127.0.0.1) 1.20ms

Fix a issue on thunderbird link not work

click thunderbird link not work.

[root cause]:

1. checked already set firefox as default browser.
2. open firefox, click url from thunderbird, no work.

[Fix]:
run #exo-preferred-applications

Found that option “%s” is lost, plus the “%s” and all goes well.

/usr/bin/firefox "%s"

1	/usr/bin/firefox "%s"

Fixing SSH login slow issue

on the new VBox nodes, ssh access is slow.

trace:
debug2: key: /root/.ssh/id_dsa ((nil)),
debug2: key: /root/.ssh/id_ecdsa ((nil)),
…
….Slow here…
…
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password
debug3: start over, passed a different list publickey,gssapi-keyex,gssapi-with-mic,password
debug3: preferred publickey,keyboard-interactive,password

To Solve the problem, I can see the Box with public network access can reply soon,
Its the reverse ip DNS issue,

Solve:
On Server side: sshd_config

UseDNS no

UseDNS no

Link:
Fixing SSH login long delay

pkg: PACKAGESITE in pkg.conf is deprecated.

Note for the pkg changes.

pkg version>1.1.4 and Im currently using 1.2.7

after moving onto pkgng, pkg update shall report following warning:

pkg: PACKAGESITE in pkg.conf is deprecated. Please create a repository configuration file

1	pkg: PACKAGESITE in pkg.conf is deprecated. Please create a repository configuration file

It’s just a trick and would like people to migrating onto repo files asap.

Please refer
Availability of binary pkgs for Download
Quote:

Ensure your pkg(8) is up-to-date. ‘pkg -v’ should say at least 1.1.4. If it does not, first upgrade from ports.
Remove any repository-specific configuration from /usr/local/etc/pkg.conf, such as PACKAGESITE, MIRROR_TYPE, PUBKEY. If this leaves your pkg.conf empty, just remove it.
mkdir -p /usr/local/etc/pkg/repos
Create the file /usr/local/etc/pkg/repos/FreeBSD.conf with:

FreeBSD: { url: "pkg+http://pkg.FreeBSD.org/${ABI}/latest", mirror_type: "srv", enabled: yes }

1
2
3
4
5

FreeBSD: {
  url: "pkg+http://pkg.FreeBSD.org/${ABI}/latest",
  mirror_type: "srv",
  enabled: yes
}