Linuxers March 2009

linuxers@mm.ilug-bom.org.in

93 participants
80 discussions

which method is more efficient to implement for any file editor?
by sachin puri 09 Mar '09

09 Mar '09

Hi I am sachin Puri I am new linux user. I have following observation in case of vim editor and have some question regarding it so whole scenario is like given below . What I have done and observe Case 1 - I set all permissions (rwx) for owner on parent directory. (I am the owner.) $ ls -ld dir drwxrwxrwx 2 sachin sachin 4096 Mar 7 13:42 dir and has structhure like below /home/sachin/dir/text.text In this case when editing the file "text.text", vim creates a temporary swap file in that directory. When the file is saved, the swap file is deleted and the inode number of "text.text" changes (it is different from the inode number of the original file and also the swap file). Case 2 - Write permission is removed from parent directory $ ls -ld dir dr-xr-xr-x 2 sachin sachin 4096 Mar 7 13:42 dir In this case when editing the file "text.text", vim creates a temporary swap file in /var/tmp. After saving the file, its inode does not change. This means that in case 2, vim is updating the contents of the file in-place. I have found that OpenOffice.org also updates the contents in-place, irrespective of the parent directory permissions. I wish to know why does vim create a new file in case 1. Wouldn't it be a costly operation, especially in case of large files? In short, which method is more efficient to implement for any file editor? Please note that in all cases, all permissions are set on the file itself (i.e. text.text). I am just manipulating the permissions of the parent directory. thanks in advance

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Re: [ILUG-BOM] Linuxers Digest, Vol 71, Issue 12
by Ashok Sinha 09 Mar '09

09 Mar '09

Sincere thanks to the Linuxers out there who so promptly responded to my query regarding root passwd. especially Rony and Rajeev. Ashok Sinha

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Re: [ILUG-BOM] socks proxy for linux
by Raghu Prasad 09 Mar '09

09 Mar '09

> Does anyone knows this? For ANY linux system > >> Can anyone tell me, which is a good socks proxy in linux. >> I want it for Ubuntu Linux Many years back I had used Dante. For Ubuntu, I think you need to install package dante-server. http://www.inet.no/dante/ Raghu

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Re: [ILUG-BOM] confirm 325b25fb0c72b7e939e410bc755667cae0dc9ed8
by Ashok Sinha 08 Mar '09

08 Mar '09

Dear All, I am new to linux and am using a Linpus Linux Lite which uses a desktop version. I was wanting to install AVG antivirus. Is it necessary? When I tried to install it it asked for the administrator password, which I dont have. I tried to use Terminal to install it but it wanted me to login as root. I couldnt as I did not have the password. I am using an acer aspire one notebk. Anybody can help. I am happy to use linux and dont want to switch back to windows. Thanks Ashok Sinha

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Wanted: volunteers to localise in Marathi
by Frederick Noronha [फ़रेदरिक नोरो नया] 08 Mar '09

08 Mar '09

Wanted: volunteers to localise in Marathi http://i18n.debian.net:8080/mr/ -- FN * http://fredericknoronha.wordpress.com M +91-9822122436 P +91-832-2409490 http://twitter.com/fn On Facebook: http://www.new.facebook.com/people/Frederick-Noronha/502514643 "Why, I'd horse-whip you if I had a horse." - Groucho Marx

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socks proxy for linux
by sameer shinde 08 Mar '09

08 Mar '09

Hi All, Can anyone tell me, which is a good socks proxy in linux. I want it for Ubuntu Linux ~~~~~~~~~~~~~~ Sameer Shinde. M:- +91 98204 61580 Millions saw the apple fall, but Newton was the one who asked why.

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Reminder for tomorrow's LUG and Python meetups
by Mehul Ved 07 Mar '09

07 Mar '09

Hello, ILUG-BOM and MumPy are organising a meetup at Directi tommorow at 2 p.m. The meeting announcement can be found at http://db.ilug-bom.org.in/wiki/index.php/Current_events -- From: Ean Schuessler @novare.net The unrecognized minister of propaganda, E -- Debian, joking...

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[ANN] FOSS competency certification
by Kenneth Gonsalves 07 Mar '09

07 Mar '09

hi, NRC-FOSS announces FOSS competency certification. Details here: http://nrcfosshelpline.in/web/full/63/AN/ -- regards Kenneth Gonsalves Associate NRC-FOSS http://nrcfosshelpline.in/web/

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Installed Lenny on Acer Aspire One
by Rony Bill 06 Mar '09

06 Mar '09

Hello, I installed Debian Lenny on the Acer Aspire One.Lenny is ideally suited for netbooks as it has a lighter foot print with good looks. A week ago I had already installed Lenny on my pen drive for testing. Lenny DVD has a superb boot menu that lets you choose your desktop without having to remember the exact syntax. (A minor error in the older method meant that instead of KDE, you end up with Gnome. I had selected KDE. Those who do not like KDE4.1 will love this older KDE. Lenny comes in a down to earth build yet good hardware support. Everything worked fine except wireless and thats where this site comes in handy. I used the mad-wifi drivers using the apptitude method given in the link. That is the fastest. http://wiki.debian.org/DebianAcerOne#head-0c033e1a554405a43cc9a4043e5f6c9d9… After that the system was restarted and Knetworkmanager was able to get me online. Gnome users please read about network-manager not working and instead the use of wicd. Otherwise everything isthe same as setting up Kubuntu in Acer Aspire One. -- Regards, Rony. GNU/Linux No Viruses No Spyware Only Freedom.

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Netbooks may rob you of privacy
by Rony Bill 06 Mar '09

06 Mar '09

Dear Sir, With reference to your article in HT on netbook security. The first impression one gets from it is that it is aimed at hitting the netbook sales. If the authors really had a proper understanding of operating systems and security issues related to them they would have never posted such an article. Neither the bigger notebooks nor the smaller netbooks come pre-installed with any firewalls or anti-virus software. The anti-virus that is pre-installed on some notebooks that have an operating system pre-installed is only a trial version which will expire anyway. Antivirus software slows down any system and the problem is not limited to netbooks only. By the way the netbook has a 1.6 GHz. processor and a 1 GB RAM and a 100+ GB hard disk, which is quite sufficient for a normal anti-virus software. I happen to use one with an anti-virus installed. What about the expensive business cell phones that are fully net enabled and are used to surf the web, check mails, blog and chat? Is there any scope for putting any of the standard antivirus software in them? The most important point missed out by the authors is that security issues arise from faulty operating systems that are breeding grounds for software viruses. Since these operating systems are closed and do not allow any security audit of their program code by outsiders, there is no way one can know their inherent flaws and predict as well as prevent future security problems. In order to overcome this limitation of closed code software, there are Free(dom) software operating systems that are openly audited by experts outside the core developer group and the general public. This enhances the immunity level of these operating systems to such an extent that they do not require any antivirus software. They come preloaded with security measures in various stages that prevent virus files from executing in the system or propagating to other computers on the network. The good news is that these Free(dom) operating systems can now be installed on the netbooks too and users can make full utilisation of the hardware resources for their own work. I sincerely hope HT will let its readers know more about these secure Free(dom) operating systems like Debian, Kubuntu, Ubuntu, Fedora, Mandriva etc. -- Regards, Rony. GNU/Linux No Viruses No Spyware Only Freedom.

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Linuxers March 2009