Linux is the generic term for a UNIX-like open source operating system based on the Linux kernel.
0
votes
2answers
26 views
su command works without prompting password
I'm on a RHEL server where the su command drops the user into root without prompting for a password. Obviously, this is a pretty big cause for concern which I'd like to fix. I'm not in contact with ...
0
votes
0answers
21 views
Is my logrotate conf file correct?
Been very objective, I would like to rotate all logs under /company-logs/, like:
/company-logs/
/company-logs/app1
/company-logs/app2
/company-logs/..
In all these subdirectories I would like to ...
0
votes
1answer
19 views
Does traffic policing reduce transmission speed or it reduces the speed of the interface in which it was configured?
I have a question about traffic policing and more specifically, related to traffic control (tc) in Linux. I'm not too familiar with networking, so please excuse my technical terms.
I have configured ...
0
votes
0answers
7 views
Resolving samba testparm message: rlimit_max: rlimit_max (8192) below minimum Windows limit (16384)
testparm in samba may produce this message:
rlimit_max: rlimit_max (8192) below minimum Windows limit (16384)
This appears be be resolved by increasing the max open file limit using this Linux ...
0
votes
0answers
23 views
Including pending update list in motd
How would you include the list and / or count of pending updates in the welcome banner?
Eg.
username: User
password: *****
Hi 'User', welcome on 'localhost'
There are 8 pending updates, you need to ...
5
votes
0answers
48 views
Why do I need to assign static ip address to the bridge and not to the physical interface?
I have bond0 with two physical interfaces in it.
Normally I used to assign static IP address to this bond0 to set up internet connectivity on the server.
Now, because of LXC virtual guests, I had to ...
0
votes
1answer
23 views
How to get notified of mdadm RAID problems?
I am running Ubuntu 12.04 LTS. Yesterday I found a message in my mailbox saying that my server was shut down. I proceeded to reboot the system, but it didn't come up after many minutes, and I didn't ...
-1
votes
1answer
37 views
hide resuls in linux terminal [closed]
so i basicly in my terminal write like this :
$ espeak "my text"
and i get output this:
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib ...
-3
votes
1answer
31 views
configuration name servers on centos 5 [closed]
What I'd like to do is, configuring the name servers. I have a domain xxx.com and yyy.com. I'd like to set the name servers of yyy.com like ns1.xxx.com and ns2.xxx.com.
Second, When I add an another ...
1
vote
1answer
41 views
How do I rebuild my software RAID 1 array after a drive replacement
So I have 1and1 dedicated host with RAID 1 setup. One of the drive went bad, and they had just replaced it with a good one. Now I need to the build, but I'm not sure which drive is the old one, and ...
0
votes
0answers
7 views
Which set of commands will limit the outgoing data rate to X kbps for traffic to or from port Y? [migrated]
I have a Raspberry Pi, and I'd like to have bitcoind running on it. This consumes a lot of my outgoing bandwidth at times, so I'd like to make sure it never uses more than 20 KB/s for Bitcoin data.
...
1
vote
0answers
20 views
How to keep the default document working while blocking all files except some on Apache2 webserver?
On my webserver I would like to block all files except some reasonable exceptions.
I have following Filesmatch directive which is doing it's work:
<FilesMatch ...
0
votes
1answer
24 views
Socket based byte counts
I see a lot of tools to get the RX and TX byte counts for transmission on interfaces, is there any tool/program that I can use to get a total transmitted byte count for a single specified socket?
I'm ...
0
votes
0answers
12 views
Mount an external SATA disk on a Virtualbox Guest [migrated]
I have an external EXT3-formatted hard disk attached via SATA to a Windows machine running a Linux Virtualbox guest.
I'd like to mount the disk in the Linux environment, but can't figure out how to ...
0
votes
1answer
30 views
CentOS 6.4 SSSD + GDM problems
I'm having an issue where using SSSD it will not bring up a full desktop when using GDM. It seems to get to where it appears to be loading the desktop, then X crashes/stops then reloads GDM.
If i ...
0
votes
1answer
33 views
Any issues with multiple services on the same server as the firewall? [closed]
I am wondering if anyone has any input in regards to having one server as your firewall, backup server, email server, etc. I am trying to keep costs down and would like to know if there are any ...
0
votes
0answers
16 views
Forwarding all outbound http traffic to a proxy on a Linux machine
I want to:
Forward all the outbound http traffic on my CentOS machine to a proxy on host a.b.c.d 8080
Except for foo.com and bar.com
what are seamless ways to do this.
Notes:
I cannot modify ...
3
votes
4answers
77 views
Make recursive chmod faster
I have an installation script that unzips a directory, then recursively chmods its contents.
I'm surprised it takes almost 10 times the time it takes to unzip, to run the following two commands:
...
-2
votes
0answers
21 views
FTP Chroot Broken or what [closed]
In regards to https://www.facebook.com/SolidShellSec/posts/580682168629285 they say PureFTP has broken CHroot system and symlinks can be followed? What is this bug? Is is patchable or should I switch ...
2
votes
2answers
56 views
Discrepancy in ssh-agent behavior
It seems like i'm having a bit of a discrepancy between the behavior of ssh-agent for two accounts I have configured.
I wrote a simple monitoring script to check on the availability of some VMs we ...
0
votes
1answer
15 views
How to Configure a FTP Service where different user groups have different permissions for a single Directory
(using Ubuntu 12.04)
I need to set up an FTP service where a specific set of users can write to the directory an another set can only read.
I'm thinking that it's hard to do for a single directory, ...
1
vote
1answer
43 views
Error with MySQL server: Can't create a new thread (errno 11)
I am currently stress testing my PHP, MySQL application hosted on AWS EC2 using Amazon Linux. After reaching certain number of users DB starts to give error: Can't create a new thread (errno 11); if ...
0
votes
0answers
11 views
how to add socks5 to TCP traffic of a specific port on linux [duplicate]
We need to route all the traffic of the port 1070 through a socks5 (8.8.1.1:10880). So far I've tried something like
iptables -t nat -A PREROUTING -p tcp -m state --state ESTABLISHED,RELATED,NEW -d ...
0
votes
2answers
35 views
Find out value of Apache directive setting without access to config files?
I'm troubleshooting a time-sensitive file upload app and suspect that the issue could be due to Apache's KeepAliveTimeout directive. Just called hosting support and asked them what the setting is at. ...
0
votes
3answers
44 views
iptables drop or reject unless going through proxy
I've found hundreds of examples so far that describe how to set up iptables to transparently redirect traffic to a proxy server, a la:
sudo iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT ...
0
votes
1answer
65 views
Forwarded packets don't include their original IP address [closed]
I have a dedicated machine which has 2 VMs running.
Host A (Router):
eth0 192.0.2.8
eth1 10.0.0.1
and I have
Host B(Application Server)
eth0 10.0.0.2
My IPTables config is:
modprobe iptable_nat
...
1
vote
2answers
60 views
Stuck TCP Connection in Linux
Strange problem. I have server "ALPHA" in Dallas and server "BETA" in Hong Kong, about 195ms ping times apart from each other. ALPHA is connected at 1gbps full, and BETA at 10mbps full. ...
0
votes
0answers
48 views
Can't SSH to headless VirtualBox linux guest from gui-less linux host
I find it impossible to connect to VirtualBox 4.2 guest (CentOS 6) from my Fedora 17 host.
Both host and guest don't run GUI. I access host via SSH (from another computer). Guest is started in ...
5
votes
2answers
95 views
Can I completely remove the Windows DNS in favour of BIND9 in an AD network?
I would like to remove the DNS feature of Windows Domain Controllers and point the DNS servers to our BIND9 servers.
I know it's possible to setup coexistence but this requires a number of extra ...
1
vote
2answers
31 views
setenforce: SELinux is disabled
I'm in a CentOS 5 machine, and try to install vsftpd. I want to configure ftp_home_dir using setsebool -P ftp_home_dir on but it says:
setsebool: SELinux is disabled.
I try to enable it using ...
1
vote
0answers
27 views
Is it possible to create an equivalent environment of a KVM guest using QEMU for Windows?
I have a KVM guest in a datacenter that is my production server for a service I am developing. I would like to create an equivalent virtual environment on my Windows machine so I can be sure that ...
-6
votes
2answers
50 views
Secure authentication as protection against rogue instructions and theft of hardware, would this scenario work? [closed]
I want to find a way for client machines to authenticate that they are talking to the correct server, not something hijacked, or just the wrong product server. I was thinking the client could send its ...
-1
votes
0answers
12 views
Mounting CIFS to an ISP router - How to debug [closed]
This question is about SMB client debugging. I have a router from my ISP which supports file sharing through SMB. My Ubuntu (currently version 13.04) can easily browse it without enter a password in ...
0
votes
1answer
48 views
Specifying which network interface to use
Assuming multiple network interfaces (eth0, eth1...), how can I specify which one I would like to use?:
Can I specify per-application which network interface should be used?
Can I specify ...
-3
votes
0answers
27 views
How to log VPN traffic? [closed]
I have the following services running:
root 780 1 0 May18 ? 00:00:00 /usr/lib/ipsec/starter
root 782 780 0 May18 ? 00:00:00 /usr/lib/ipsec/pluto --nofork --uniqueids ...
-3
votes
0answers
30 views
cp to EXT4 through USB cable [closed]
I was backing up my main EXT4 hard drive to another EXT4 hard drive using a USB cable. When the cp command finished, I forgot to unmount the USB drive, and unplugged the USB cable. There was an error ...
1
vote
0answers
46 views
Blocking torrents on PPTP/OpenVPN/IPSec [duplicate]
I run a VPN network and because of DMCA complaints in the USA I have to block torrent traffic.
I have tried the following:
iptables -t filter -A FORWARD -m string --string "BitTorrent protocol" ...
-1
votes
2answers
46 views
Rules for setting hostname [duplicate]
It's thought that for the hostname should be used FQDN. I have a doubts about whether using:
host.domain.ltd
and
domain.ltd
for the hostname is the same thing and will be equally correct / ...
-2
votes
0answers
26 views
Unable to ping outside of DHCP server on Suse Linux Enterprise [closed]
I'm quite new to linux so please bare with me.
I have a network of 4 computers and a Suse Enterprise server. I configured the Suse box as a DHCP server.
The DHCP server (192.168.1.1 on eth0) is ...
0
votes
1answer
28 views
Filtering input with iptables: -i <interface> versus -d <ip>
I'm changing my iptables setup to cope with the addition of a new uplink, which now receives its configuration through DHCP. I currently list my interface's IP addresses directly in my rules, which ...
0
votes
0answers
21 views
Wndows Azure: “Linux Integration Services for Hyper-V has been removed.”
When I am trying to yum update my centos in Windows Azure, the following appeared
Linux Integration Services for Hyper-V has been removed. Please reboot your system.
So I reboot it. But ...
0
votes
2answers
27 views
date: cannot set date: Operation not permitted [duplicate]
I have received an interesting problem during I tried to set my Server time either with NTD or manually using date command.
First of all I have tried to use NTD. I have succesfully installed the ...
0
votes
1answer
19 views
Increase file ulimit for the asterisk daemon
How do i increase the file limit for the asterisk daemon on my ubuntu computer? When I login as root and use the ulimit, it says unlimited already. I can't login as asterisk because that user ...
0
votes
2answers
24 views
How to set a user environmental variable in .profile
I set an environmental variable for user on CentOS by simply:
1.) Logging in with the user
2.) Going to their home directory cd ~ and creating a file .profile
3.) Putting the following in the ...
0
votes
1answer
26 views
nGinx Redirecting to https:// on all URL
I am trying to get the following to work so that no matter what you type in the URL bar you always go to "https://www.". So far www. does not go to https://www. and https:// does not go to ...
0
votes
1answer
19 views
How can I configure a Ubuntu LAMP web server with permissions like CPanel?
I know how to set up a LAMP stack on Ubuntu pretty well for a single website / single user, but I'd like to allow multiple users to host multiple sites on a single server.
This is for different ...
0
votes
0answers
19 views
Accessing DLNA over VPN [migrated]
I have set up a VPN server using OpenVPN on my home Ubuntu 10 box as a means to access my home network drives and media drives whilst at work and on the move. I get a valid connection, can ping and ...
0
votes
1answer
28 views
How Can I specify server to use for mail command
I am working on a crontab job that runs a script, which looks in a specific directory for the existence of a file. If the file does not exist it exits. However, if the file exists it sends an E-mail ...
-1
votes
2answers
32 views
Which python to use on Enterprise Linux? [closed]
I'm currently learning python and I recently bought a book that goes through Python 3. Where I work we use Red Hat Enterprise Linux, and I've noticed that on RHEL 5 and RHEL 6 the versions of python ...
-4
votes
0answers
18 views
Rebuild Proftp, package Initial installed via yum [closed]
I have installed proftpd using yum, it is on a live production server,
And there is a necessity to install mod_lang and enable NLS
i couldn't find any post or suggestion to rebuild proftpd with NLS ...
