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libsrtp package anywhere?
by Bob Beers 26 Jan '11

26 Jan '11

Hi list, I'm trying to create an asterisk 1.8 rpm with SRTP. I found mention of a libsrtp rpm, <http://qutecom.ipex.cz/RPMS/srtp-1.4.4-1.i386.rpm > in these instructions, <http://www.voip-info.org/wiki/view/Asterisk+SRTP> but it is unreachable (by me, anyway). The libSRTP source is here, <http://srtp.sourceforge.net/download.html>. Has this already been packaged for CentOS 5? Thanks, -Bob Beers

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how to move forward/undo/revert/fix re: a failed CentOS 5.5 to SL 5.5 migration ...
by Larry Vaden 26 Jan '11

26 Jan '11

For various reasons which seemingly fail the necessary/sufficient tests with the benefit of hindsight, I attempted to migrate a shell machine which is the beach front from which I work (not a production server) from CentOS 5.5 to Scientific Linux 5.5 yesterday. Karanbir is quoted on this list as having said something like: "All that you should need to do is install centos-release, remove redhat-release rpms and just yum update the machine, which should bring in all packages changed by CentOS ( since they will have a slightly higher E-V-R )." In other words, is there a get out of jail card based on Karanbir's stanza which will return the machine to a consistent state without a fresh install? The results from the bad migration are below the sig. The stanza used was from the SL mailing list, namely: "To be REALLY sure of a full conversion one might try: yum reinstall $(rpm -qa --qf "%{name}.%{arch} %{vendor} \n" | \ grep -i centos | cut -d ' ' -f 1 | sort | uniq | grep -v kernel) Need special handling for kernel and kernel-devel as you will get messages about multiple versions being allowed, and cutting off the limb on which you are standing is not recommended." In short, I pray for the community's thoughts about how to proceed with either going forward, reverting back to Centos 5.5 or even RHEL 5.5 without having to do a fresh install. THANKS for your help. kind regards/ldv === [root@shell work-2011-01-25-migrate-centos55-to-scientific-linux55]# yum list installed | grep -i centos geronimo-specs.i386 1.0-0.M2.2jpp.12.el5.centos installed geronimo-specs-compat.i386 1.0-0.M2.2jpp.12.el5.centos installed nss.i386 3.12.8-1.el5.centos installed nss-devel.i386 3.12.8-1.el5.centos installed nss-tools.i386 3.12.8-1.el5.centos installed [root@shell work-2011-01-25-migrate-centos55-to-scientific-linux55]# BUT, more devils in the details are: [root@shell SL-rpms]# rpm -ivh kernel* warning: kernel-2.6.18-194.32.1.el5.i686.rpm: Header V3 DSA signature: NOKEY, key ID 192a7d7d Preparing... ########################################### [100%] package kernel-headers-2.6.18-194.32.1.el5.i386 is already installed package kernel-2.6.18-194.32.1.el5.i686 is already installed package kernel-devel-2.6.18-194.32.1.el5.i686 is already installed file /boot/.vmlinuz-2.6.18-194.32.1.el5.hmac from install of kernel-2.6.18-194.32.1.el5.i686 conflicts with file from package kernel-2.6.18-194.32.1.el5.i686 file /boot/System.map-2.6.18-194.32.1.el5 from install of kernel-2.6.18-194.32.1.el5.i686 conflicts with file from package kernel-2.6.18-194.32.1.el5.i686 file /boot/config-2.6.18-194.32.1.el5 from install of kernel-2.6.18-194.32.1.el5.i686 conflicts with file from package kernel-2.6.18-194.32.1.el5.i686 file /boot/symvers-2.6.18-194.32.1.el5.gz from install of kernel-2.6.18-194.32.1.el5.i686 conflicts with file from package kernel-2.6.18-194.32.1.el5.i686 file /boot/vmlinuz-2.6.18-194.32.1.el5 from install of kernel-2.6.18-194.32.1.el5.i686 conflicts with file from package kernel-2.6.18-194.32.1.el5.i686 file /lib/modules/2.6.18-194.32.1.el5/kernel/arch/i386/crypto/aes-i586.ko from install of kernel-2.6.18-194.32.1.el5.i686 conflicts with file from package kernel-2.6.18-194.32.1.el5.i686

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Re: [CentOS] pen drive, hard disk, cd not being detected
by Ritika Garg 26 Jan '11

26 Jan '11

Among many messages that 'dmesg' displays, the following seems to indicate that something might be wrong: mtrr:type mismatch for c1fe0000,10000 old:write-back new:write-combining I can't understand what does the above mean?

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Basic Permissions Questions
by James Bensley 26 Jan '11

26 Jan '11

Hi List :) So, I have a folder1, its owner is user1 who has r+w on the folder. User2 is the group owner who only has read access (when I say user2, I mean the group called user2, because when you make a new user the OS can make them their own group). You can see these permissions below: [user2@host test]$ ls -l drw-r----- 3 user1 user2 28 Nov 2 16:17 folder1 How ever user2 can not 'cd' into this directory, and gets the following out put form 'ls -l folder1' [user2@host test]$ ls -l folder1/ total 0 ?--------- ? ? ? ? ? sub-folder And the sub-folder name is written in white text flashing on a red background. So, it seems to me that there is some permissions problems here. What permissions are required on the group settings to allow a group user to browser folder1 and its sub folders and read the files in side if it isn't 'r' ? **Note: I have used sudo to replicate permissions through the directy structure: [user2@host test]$ sudo ls -l folder1/ drw-r----- 2 user1 user2 4096 Jan 24 06:49 sub-folder -- Regards, James. http://www.jamesbensley.co.cc/ There are 10 kinds of people in the world; Those who understand Vigesimal, and J others...?

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Re: [CentOS] Basic Permissions Questions
by Les Bell 26 Jan '11

26 Jan '11

Edo <ml2edwin(a)gmail.com> wrote: >> If user1 writes a file in folder1 will user2 be made the default group owner, is there a way of enforcing this and with the required privileges (r for files, rx for directories?). Yes. If user1 belongs to the user2 group, that’s how it should [already] work. << The problem here is the RH "User Private Group" scheme, which means that user1 is only a member of the group user1 and user2 is only a member of the group user2. So their group memberships, by default, don't intersect and user2's only access to user1's files is by virtue of the "other/world" permissions, which depend upon the umask (but don't give access, by default). I've written this up (again, for a course I wrote some years ago, but it's still mostly relevant) at http://www.lesbell.com.au/Home.nsf/web/Controlling+Access+to+Files?OpenDocu… - see the section near the bottom entitled " Red Hat's User Private Group Philosophy" which explains how it should be used (the secret is to make the user administrator of their own group with gpasswd -A). The RH approach, imho, is better than a global group, "users", as found on other distros, because there's no real difference between "users" and "world". One easy way to allow shared access - and this will work over Samba - is to create a group for the users, e.g. "accounts" and make the various users members of that group (as a secondary group). Then create a shared directory for them, chown it to be owned by the group (e.g. chown me:accounts /home/accounts) and then set the SGID bit on the directory (chmod 2777 /home/accounts). Now, whenever anybody creates a file in that directory, it will be owned by that user and the shared group "accounts", rather than the primary group of the creator. See the section in that article on "Permissions on directories". I actually haven't tested that approach with SELinux, but I can't see that it would interfere. Best, --- Les Bell [http://www.lesbell.com.au] Tel: +61 2 9451 1144

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Re: [CentOS] Recommendation for a Linux alternative to Centos - ATH9K disaster
by Les Bell 26 Jan '11

26 Jan '11

Always Learning <centos(a)g7.u22.net> wrote: >> Thanks for the good advice. I wondered why the installer gave those choices. Now it makes sense. All my production data resides on /data and I tend to leave the standard directories alone << Paul, if you want a basic explanation of the rationale behind the Linux Filesystem Hierarchy Standard, you might enjoy this article from a course I wrote years ago - it's a little dated, but still applicable today. http://www.lesbell.com.au/Home.nsf/web/What+Goes+Where+on+a+Linux+System?Op… Best, --- Les Bell [http://www.lesbell.com.au] Tel: +61 2 9451 1144

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unable to check in code to svn when files contain spaces or characters
by Agnello George 26 Jan '11

26 Jan '11

i got a file like this and i need add it into my svn admin/upload_data/FINAL leg list 19_01_2010 to agar (Merged data in one).xls i as able to add other files with space using the following command : svn st |grep ? |cut -c8- |sed 's/ /\\ /g' |xargs svn add however there are some special characters like ( ) +#@ that svn cannot understand as the full path of the file . can some one help me in this in perl or in shell . -- Regards Agnello D'souza

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kickstart and grub parameters
by Keith Keller 26 Jan '11

26 Jan '11

Hey list, I recently started working with kickstart. It is awesome! I really had no idea how easy it would be to use. I do have one strange issue, that's really not that important, but that I'd like to figure out. I like to watch all the kernel boot messages go by in text mode by default, and when I've set up a box in the past, I've modified grub's menu.lst file to remove all the GUI components of the boot. But when I try this from a kickstart-installed box, either from a %post section or manually, I still get (mostly) the GUI boot process. Here's my relevant menu.lst exerpts: first, the one working the way I like: #boot=/dev/hda default=0 timeout=5 #splashimage=(hd0,0)/grub/splash.xpm.gz #hiddenmenu title CentOS (2.6.18-194.11.4.el5) root (hd0,0) kernel /vmlinuz-2.6.18-194.11.4.el5 ro root=LABEL=/ initrd /initrd-2.6.18-194.11.4.el5.img Then, the one not behaving the way I expect: #boot=/dev/sda default=0 timeout=5 #splashimage=(hd0,0)/grub/splash.xpm.gz #hiddenmenu title CentOS (2.6.18-53.el5) root (hd0,0) kernel /vmlinuz-2.6.18-53.el5 ro root=LABEL=/ initrd /initrd-2.6.18-53.el5.img I'm not sure why they're behaving differently; AFAICT the two are the same modulo the kernel version. Any suggestions for what I can look at next? --keith -- kkeller(a)wombat.san-francisco.ca.us

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Re: [CentOS] Recommendation for a Linux alternative to Centos - ATH9K disaster
by Les Bell 25 Jan '11

25 Jan '11

Les Mikesell <lesmikesell(a)gmail.com> wrote: >> Running XP as a server??? << There are lots of bloatware Windows products which use MS SQL server as an embedded database, Les. My personal favourite was the software for a TV tuner card (Pinnacle) which used SQL Server to store its program schedule. Bloatware of the first order, and unstable as hell, too. Meanwhile, for those who a spot of schadenfreude: http://failblog.org/2011/01/25/m-thru-f-why-so-blue/ Best, --- Les Bell [http://www.lesbell.com.au] Tel: +61 2 9451 1144

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mail problems after setting up lynx for https with c_rehash
by Rob Kampen 25 Jan '11

25 Jan '11

Hi List, I am not sure it's related but after I ran c_rehash over my ssl certificate directory I am having email delay problems. 1. my thunderbird client now regularly times out and tells me the smtp server is not available - a retry always works - this never occurred before. I do use TLS for the smtp server on port 25 for my connection. 2. another mail server that regularly sends me mail reports:- ********************************************** ** THIS IS A WARNING MESSAGE ONLY ** ** YOU DO NOT NEED TO RESEND YOUR MESSAGE ** ********************************************** The original message was received at Mon, 24 Jan 2011 21:12:16 -0800 from relay07 [10.183.136.126] ----- Transcript of session follows ----- <rkampen(a)reaching-clients.com>... Deferred: 403 4.7.0 TLS handshake failed. Warning: message still undelivered after 1 minute Will keep trying until message is 5 days old The mails arrive just fine a bit later - related?? I have checked the load on the server - low I have checked maillog and can see nothing different or unusual running centos 5.5 on 2.6.18-194.26.1.el5 BTW lynx with https is working just fine now Not sure where to look next - any ideas or suggestions appreciated TIA

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