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VPN inside VPN?
by Fajar Priyanto 10 Feb '11

10 Feb '11

Hi all, Just wondering if VPN inside VPN is possible? I've created PPTP VPN in the office. Then from home, first I need to use company's official AT&T VPN. Then after connected, I fire up the PPTP VPN client. Got connected, but cannot ping the PPTP gateway, and half minute later the PPTP got disconnected. No obvious error message in the PPTP log. Thank you.

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Re: [CentOS] Ken Olsen od DEC, 1927-2011
by Les Bell 09 Feb '11

09 Feb '11

Raymond Lillard <ryl(a)sonic.net> wrote: >> The statement is generally quoted without context as it is here. << Correct. Olsen is also famous for saying "People will get tired of managing personal computers and will want instead terminals, maybe with windows." (by which he meant, a windowing graphical terminal, a la X). He was right about that; witness the popular disenchantment with MS Windows and its endless cycle of patching, upgrades, malware removal and registry cleanup, and the fascination with cloud services accessed by lightweight clients like netbooks, tablets and phones. That's been good for the Linux and Centos communities, who have provided low-maintenance services for clients both on the desktop and in the cloud. I venture to say that DEC was an influence on many of the old hands here and on other lists. The PDP-8 was the first computer I actually got my hands on (as opposed to being walked through the machine room and told "Don't touch anything! This is where your code gets compiled and run - careful with the card deck on top of that tape drive behind you!"). And later, I found myself teaching business students to program on a PDP-11/70 running RSTS/E. DEC was certainly heavily influential in our industry, both directly and indirectly, and Olsen was - of course - hugely influential on DEC. Best, --- Les Bell [http://www.lesbell.com.au] Tel: +61 2 9451 1144

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a possible heads up wrt CERN experiment breaking SL 5.6
by Larry Vaden 09 Feb '11

09 Feb '11

This may or may not be of interest to CentOS developers; if it is not or if it is redundant of your efforts to keep atop of what's happening, you have my apologies. Whether it is joint or disjoint wrt to the upstream code is not known at this point, but I have submitted a request for elucidation if CERN security allows. kind regards/ldv ---------- Forwarded message ---------- From: Ewan Mac Mahon <ewan(a)macmahon.me.uk> Date: Wed, Feb 9, 2011 at 10:11 AM Subject: SL 5.6 released? To: SCIENTIFIC-LINUX-USERS(a)fnal.gov Hi, As far as I'm aware SL 5.6 isn't out yet - I don't think I've seen a release announcement, it's not on ftp.scientificlinux.org, and the web site front page lists 5.5 as the latest, and SL 6 was being considered a higher priority. However, someone from CERN IT (discussing some experiment software which seems to break on 5.6) has just told a grid deployment meeting that: "FNAL released SL 5.6 last week" Clearly either my understanding is flawed or his is; which is it please? Ewan

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mount the wrong device after system recovery
by Xinhuan Zheng 09 Feb '11

09 Feb '11

Hi, I am recovering a CentOS 5.4 system. I've copied all partitions into the recovery system. I've installed grub boot loader. However, the original system is using /dev/sdb1 for root (/), while the recovery system is using LVM (/dev/vg0/lv1) for root (/). When recovery system boots, I got the panic error: * Mounting /dev/sdb1 on /sysroot * Mount: mounting /dev/sdb1 on /sysroot failed: No such file or directory * Mount: mounting /dev on /sysroot/dev failed: No such file or directory * * switching / to /sysroot * Switch_root: bad newroot /sysroot * Kernel panic - not syncing: Attempted to kill init! I've changed the recovery system fstab to use the correct devices. I deleted recovery system etc/lvm/cache/.cache file. But it still doesn't work. What am I missing? Thanks, - xinhuan

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iptables nat table rules
by Carlos S 09 Feb '11

09 Feb '11

I am forwarding traffic on port 8080 to port 80 with following rule. # iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 8080 -j REDIRECT --to-port 80 # iptables-save However, I am unable to add it directly in /etc/sysconfig/iptables. I think it is used only for filter table and not nat table. So where do nat table rules go? Any help? - cs.

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iSCSI disk preperation
by Jason Brown 09 Feb '11

09 Feb '11

I am currently going through the process of installing/configuring an iSCSI target and cannot find a good write up on how to prepare the disks on the server. I would like to mirror the two disks and present them to the client. Mirroring isn't the question, its how I go about it is the problem. When I partitioned the two drives and mirrored them together, then presented them to the client, it showed to the client as a disk out no partion on it. Should I partition the drive again and then lay the file system down on top of that? Or should I delete the partitions on the target server and just have sda and sdb mirrored, then when the client attaches the disk, then partion it (/dev/sdc1) and write the file system. Thanks

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rsync permission denied , without changing apache user and group setting
by Agnello George 09 Feb '11

09 Feb '11

Hi i got two server webserver1 and webserver2 i want to rsync some data form webserver1 to webserver2 using a user called syncuser ( syncuser is added to the group apache : adduser -G apache syncuser ) here is my command : [root@web1 projects]# rsync -avzh /var/www/projects/beta-website1 syncuser@web2server:/var/www/projects syncuser@web2server password: building file list ... done beta-website1 rsync: failed to set times on "/var/www/projects/beta-website1": Operation not permitted (1) beta-website1/index.html rsync: mkstemp "/var/www/projects/beta-website1/.index.html.ZW9de8" failed: Permission denied (13) rsync: failed to set times on "/var/www/projects/beta-website1": Operation not permitted (1) sent 219 bytes received 54 bytes 60.67 bytes/sec total size is 57 speedup is 0.21 rsync error: some files could not be transferred (code 23) at main.c(892) [sender=2.6.8] on webserver2 my permission are as follows ( i dont not want to change the permissions, i want user and group to be apache ) [root@web6 projects]# ll total 20 drwxr-xr-x 2 apache apache 4096 Feb 7 15:54 beta-website1 Can some one help me understand how to sync thses files . -- Regards Agnello D'souza

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Printer-Problems
by Timothy Kesten 09 Feb '11

09 Feb '11

Hi Folks, fresh CentOS 5.5 x86_64. One USB-printer connected (HP Business Inkjet 1200) Printing from localhost:631 (Testpage) works. But no from any application. From OO only the message: printer-problem - no more. Second printer is from far (Cupsd) in the network. Works well. But what's about the local printer? Any hints? Thx Timothy

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Re: [CentOS] Fan speed control on Supermicro X8DAL board with CentOS
by Chuck Munro 09 Feb '11

09 Feb '11

On 02/07/11 20:42, RedShift wrote: > > Actually it's possible a hardware monitoring module is interfering with the FAN speed control duties. Try preventing any hardware monitoring related modules get modprobed. See modprobe.conf how to blacklist modules. > > > Glenn Interesting thought Glenn, thanks. I've since gone back to CentOS-5.5 on the box (since it's not fully built anyway) and added the SuperoDoctor monitoring utility after resolving a couple of dependencies like SNMP and the correct kernel driver. I sent an enquiry to the Supermicro support folks, and they jumped on it right away, which impressed me. They wanted a screenshot of SuperoDoctor to try to analyze the problem. I don't think it's a case of a kernel module getting in the way because this issue crops up even during the BIOS boot process, and happens randomly if I run memtest86 as well. Sometimes the fans jump to light speed, other times not. I'm beginning to think it's either a bug in the latest BIOS or a sensor chip problem. Even when the CPU temperatures are reported as "Low", the fans run full speed most of the time. The exhaust air leaving the box is almost cool, so ambient temperature is ok. I'll give the Supermicro support folks some time to sort this out, since I'm still waiting for CentOS-6 anyway. Chuck

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Ken Olsen od DEC, 1927-2011
by m.roth＠5-cent.us 09 Feb '11

09 Feb '11

A lot of us wouldn't be here without him. DEC made good, really reliable hardware. mark <http://www.networkworld.com/news/2011/020711-kenneth-olsen-dec-obit.html>

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