Discuss March 2008

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300 participants
373 discussions

Authenticate SCP against a mysql database?
by Christopher Thorjussen 12 Mar '08

12 Mar '08

Hi, I'm using a mysql backend for authenticating vsftpd users on centos5. Is it possible to have scp connections to this server also authenticate against the same database? My guess is I can use pam in a way or two, but I'm not very familiar with messing around with pam, so I was hoping somebody had some info/solution. I would also like to make sure it's only scp connections allowed for these users stored in the db, while system user can login with ssh as well. /Christopher

1 0

Re: [CentOS] Colors in vi for user root
by David G. Miller 12 Mar '08

12 Mar '08

Erek Dyskant <erek(a)blumenthals.com> wrote: > This was discussed previously soon after CentOS 5.0 was released. The > > upstream distribution changed root from using vim (with syntax > > highlighting) to using vi. With the 4.X versions root was using vim. > > The 5.X configuration is: > > > > [root@bend ~]# which vi > > /bin/vi > > > > [dave@bend ~]# which vi > > vi: aliased to vim > > [dave@bend ~]# which vim > > /usr/bin/vim > > In theory, programs in /bin are statically linked, so they work even > when you have library issues going on. Anyway, just use the vim command > explicitly or add alias vi=vim to your ~root/.profile The static linking part is no longer true: [root@bend ~]# ls -l /bin/vi -rwxr-xr-x 1 root root 628808 May 9 2007 /bin/vi [root@bend ~]# file /bin/vi /bin/vi: ELF 64-bit LSB executable, AMD x86-64, version 1 (SYSV), for GNU/Linux 2.6.9, dynamically linked (uses shared libs), for GNU/Linux 2.6.9, stripped I would guess that any shared libraries used by vi are in or under /lib. That way the required libraries should also always be available. Just for comparison, the executable for vim is quite a bit bigger: [root@bend ~]# ls -l /usr/bin/vim -rwxr-xr-x 1 root root 2817056 May 9 2007 /usr/bin/vim This is just another example of the upstream distribution being very conservative for possibly several different reasons. There are also a number of ways to override their choice. I just wanted to point out that the change from vim to vi for root was intentional. Someone changing it back should understand the implications of what they're doing. Cheers, Dave -- Politics, n. Strife of interests masquerading as a contest of principles. -- Ambrose Bierce

1 0

SSH, SCP connections to remote MySQL Database using OpenOffice Possible?
by Therese Trudeau 12 Mar '08

12 Mar '08

I'm trying to find a way to get remote connections from my Linux Desktop machine to a remote Linux box which is hosting a MySQL database, via SSH port 22, and then once connection is established, log in to the database port 3306 and have either an SSH and or SCP connection established so I can securely do edits and queries. I am able to connect this way from my Windows machine to remote server using Navicat. Both the windows desktop and the server are set up this way. I just can't figure out how to get my Linux desktop and the remote Linux box to talk this way. I can connect to the remote database via Linux desktop, it's just via an un encrypted connection through port 3306. For obvious reasons I don't want to do it that way. I tried connecting to the remote database in the same way I use Konqueror for FTP over SSH, i.e., by connecting via the fish protocol over port 22 -by enterning into OpenOffice Base for the server URL: fish://user@myservername.com:22 and the error that comes up in either OO Base or Calc said I must specify a port number after the : , which I did, and it still won't connect that way. My question is, is OpenOffice Calc able to connect to remote databases via SSH and or SCP? If so, do I need a plug in for that, or need to configure calc to do that in some way? How would I do this, or which plug in(s) do I need? _________________________________________________________________ Connect and share in new ways with Windows Live. http://www.windowslive.com/share.html?ocid=TXT_TAGHM_Wave2_sharelife_012008

7 24

disable SELinux
by Hiep Nguyen 12 Mar '08

12 Mar '08

hi all, i asked this topic couple days ago, but i have problem again. for some reasons, iptables was turned on again. is there any way to disable iptables completely? this is what i did last time: #service iptables stop thanks, t. hiep

11 15

root vs. user login
by Hiep Nguyen 12 Mar '08

12 Mar '08

hi all, when i login as root, i got: [root@dev html]# any other user, i got: -bash-3.1$ what do i need to change for user profile or during user creation process to make it looks like: [test@dev html]# thanks t. hiep

5 4

Adding samba clients to samba server
by Scott R. Ehrlich 12 Mar '08

12 Mar '08

I have an application that requires the use of netbios names instead of IP addresses, and the company that produces the application says that's the way it is. I have a Windows XP machines running the application, and I want to add it to a domain controller. I have a Centos 5 machine onto which I've installed Samba and configured it to be a DC. I now want to add a couple linux workstations, also running samba, to this domain controller as workstations. I've done this millions of times under Windows, but never added a samba client to a samba server/dc. How do I do so? It is my hope that this will permit me to then use the application, as I'll have added the XP machine to the Samba DC, too, thus hoping netbios names work properly. Thanks. Scott

3 2

Neighbour table overflow.
by Indunil Jayasooriya 12 Mar '08

12 Mar '08

Hi, I am getting below error on mailgw. it has 2 ethernets. eth0 is connected to internet, while eth1 is connected to LAN where there are about 300 PCs. Mar 12 09:14:00 gateway kernel: NET: 697 messages suppressed. Mar 12 09:14:00 gateway kernel: Neighbour table overflow. Mar 12 09:14:05 gateway kernel: NET: 660 messages suppressed. Mar 12 09:14:05 gateway kernel: Neighbour table overflow. Mar 12 09:14:10 gateway kernel: NET: 682 messages suppressed. Mar 12 09:14:10 gateway kernel: Neighbour table overflow. Mar 12 09:14:15 gateway kernel: NET: 700 messages suppressed. Mar 12 09:14:15 gateway kernel: Neighbour table overflow. Mar 12 09:14:20 gateway kernel: NET: 633 messages suppressed. Mar 12 09:14:20 gateway kernel: Neighbour table overflow. it happens very often. I goolgled and found some info. many talk about below file /proc/sys/net/ipv4/neigh/default/gc_thresh1 I increased its value to 300 But, i still get the same error. any help ? -- Thank you Indunil Jayasooriya

2 1

vnc stops working
by Jerry Geis 12 Mar '08

12 Mar '08

Hi all, I am running straight centos 5.1. I have had the X screen die on me a couple times I found this in the log file. Xorg[3380]: segfault at 30c rip 3943610c52 rsp 7fff1c125370 error 4 npviewer.bin[14084]: segfault at f67ba030 rip 468373a0 rsp ff92d608 error 4 Any suggestions on something I do so X doesnt die? Jerry

1 0

alternatives package?
by Eric B. 11 Mar '08

11 Mar '08

Hi, In my struggle today to get python2.4 installed on my CentOS4 system, I saw that it installed a packaged called alternatives which is supposed to handle symbolic links to default commands in a nice clean, structured way. However, I am having trouble understanding how this thing works. I have read the man page half a dozen times already, and yet the alternative link for python which was installed doesn't seem to follow what is written in the man page. I am trying to modify the default behaviour for it, but having a lot of difficulty. Of course, with a name like "alternatives", it makes searching Google, tldp.com, etc very difficult. Does anyone have experience with this package and/or can anyone point me in the direction of some good examples, documentation for it? Something a bit more explanative than the man page. Thanks! Eric

2 2

finding configure prefixes for RPMs?
by Rogelio 11 Mar '08

11 Mar '08

I would like to make a minor change in C and (re)compile a particular cgi file for a program that was originally installed via package. How do I find which configure prefixes were used on the RPMforge program I 'yum install'-d so that I can run the same command again when I run 'make' on the changed source code?

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Discuss March 2008