Tagged Questions

Linux is the generic term for a UNIX-like open source operating system based on the Linux kernel.

learn more… | top users | synonyms (3)

-2
votes
1answer
43 views

Apache httpd down sometimes [closed]

I am running Apache on Centos 64 bit , it downs sometimes (the apache only) not the server. When I restart httpd service it back up. Here is recent error_log when it was down [Sat Nov 15 00:35:20 ...
1
vote
0answers
28 views

LightDM fails to load after upgrade [closed]

I'm running Debian testing (Jessie) and XFCE4 is my desktop environment. I recently did an apt-get upgrade. Now, when I boot, I get a blank screen with a blinking cursor. Nothing happens, but I'm able ...
0
votes
2answers
101 views

Apache virtual host not working on Ubuntu 14.04 LTS

I've been using this tutorial to set up an Apache virtual host on my Ubuntu pc. I've created a no-ip domain which I will be using as the hostname of my virtual host. I've followed every step of the ...
0
votes
0answers
35 views

how do I recover /bin/hostname [migrated]

I have accidently deleted /bin/hostname. Termporarily I have put in a shell script there that returns the known name. But how do I recover the lost binary? It is an AWS AMI. Linux ip-10-2-0-162 ...
1
vote
1answer
22 views

Azure VM crashed and I recovered the VHD however cloud-init prevents me from booting it locally

One of our VM's suddenly was stuck at 100% CPU load and was unable to be reached from SSH. Rebooting did not help, nor did creating a new VM from the existing VHD. I downloaded the VHD. However, I'm ...
-3
votes
0answers
24 views

When i install phpfox site it shows me an annoying language looks encoding error [closed]

I have installed phpfox on my linux based server cnektdev.com but when I installed it showing me a strange error. However the same code i run on 2 different servers working fine cnekt.com ...
-3
votes
0answers
16 views

Difference between /usr/sbin/csf and csf [closed]

Can anyone explain why command "csf" is not working in my server ? but /usr/sbin/csf is fine ? If I want to restart CSF firewall, I need to execute /usr/sbin/csf -r but can't able to do it as csf -r
-2
votes
0answers
23 views

xargs invalid option -i [closed]

I'm getting xargs: invalid option -- 'i' error with below command sudo docker ps | grep node | cut -d ' ' -f 1 | xargs -ti docker exec -it {} /bin/bash -l -c "(cd /sites/web-services; npm install ...
-2
votes
1answer
20 views

Create symlink if source exists

I'm trying to make a symlink to a directory if it exists only and cannot figure out how. I tried various ideas I found and none worked. Most notable idea that i thought would do the job was to use ln ...
0
votes
2answers
117 views

Forensics on tons of file changes

It has come to my attention that my CentOS 5.6 5.11 VPS has over 16,000 files with a timestamp during a 3-day period in September this year. I can't figure out why that is, as I did not log in via SSH ...
0
votes
0answers
21 views

Debugging frozen Gnu screen session?

We've been using GNU screen on our jump box to have ssh sessions open to multiple hosts within our private network. One window per host. Recently we've built a new environment and are experiencing ...
0
votes
1answer
27 views

Most outgoing connections blocked (kind of?)

I have a server which I upgraded from Ubuntu 12.04 to 14.04. Now I have some extremely strange behaviour (which I believe was not present immediately after the upgrade, but can't be sure): I can't (by ...
0
votes
0answers
8 views

Put crossdomain.xml into icecast2 webroot

I'm trying to put a crossdomain.xml file inside icecast2 web root to be able to access by the flash player http://example.com:8000/crossdomain.xml I'm frustrated now. Tried everything possible but ...
0
votes
1answer
29 views

OEL 6.5 bonding mode=802.3ad no connection

OEL 6.5 bonding mode=802.3ad no connection I configured 2nic into bond on OEL 6.5. to cisco switch (lacp) ---------- | eth0 |=====+ +~~physical-link~~\ ---------- || --------- | ...
-1
votes
0answers
9 views

Fedora 20 Gnome upgrade - cannot login anymore [migrated]

I started to use Fedora with with Gnome 2x. I started to upgrade to gnome 3x when I had some eletric energy problem in my build and my machine turned off. Now I cannot log in any more - meggage "Oh ...
3
votes
3answers
134 views

server's memory taken up almost to 8GB

Lately, our server face problem with the memory. Started from few weeks ago, our server was loading very slow. Accessing emails and websites were really take too long. Then we asked the server ...
-1
votes
1answer
34 views

Linux: When to create a new partition?

I am a newbie on LVM management trying to learn how to create new logical volumes. This is what I understand on how to do it: (Just want to make sure I understand it correct.) create partitions on ...
-2
votes
2answers
36 views

How do PAM advanced options work, exactly?

I've been reading everything I can find on PAM (e.g. http://wpollock.com/AUnix2/PAM-Help.htm), however I'm still confused about how precisely the advanced options are supposed to work. For example, ...
1
vote
0answers
37 views

Ubuntu server + Samba + PAM + Apple OpenDirectory

Due to various reasons, we are looking to migrate our file servers from OS X Server 10.9 over to a true Samba implementation running on Ubuntu 14.04LTS. We have Ubuntu up and running with Samba ...
-1
votes
1answer
19 views

Why does ssh -f create multiple processes when a pipe is used? [closed]

When I on my Linux host do ssh -f 10.10.47.47 "/opt/omni/bin/mbuffer -4 -v 0 -q -I 8024 | /usr/sbin/zfs receive tank/test" then I see on the remote host 27349 ? S 0:00 bash -c ...
3
votes
0answers
36 views

Debian staff group causes problems

We have an (old and grown) infrastructure of linux machines (mostly debian). For user authentication we use LDAP where we have defined several groups with different access rights. Unluckily one of ...
0
votes
0answers
18 views

Server crash with ascii NUL characters in syslog ( ^@^@^@… )

I have some dedicated server hosted by a OVH (French service provider). OS : Ubuntu 12.04 x64 A few months ago, one of my server crashed. The only weird thing was some "ASCII NUL" caracters in the ...
3
votes
1answer
36 views

I want to reset interface count

In centOS 5 is there anyway to reset /proc/net/dev count ? instead of reboot the server or reload NIC drivers ? I am using e1000e drivers for the same.
1
vote
0answers
40 views

mysqld shuts down every 10 minutes

I have a very odd problem: mysqld shuts down every 10 minutes, without any errors, just like some process actually calls "shutdown" on it. I already checked cron, but couldn't find anything there. ...
1
vote
2answers
86 views

Centos 7 with 2 network interfaces on same network one of them doesn't respond to ping from outside

I have a centos7 just installed with 2 active interfaces on the same network like this ip addr show 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN link/loopback ...
-1
votes
1answer
26 views

Bash shell copy files on the hidden directory [closed]

Need help with Unix script. how do you use /bin/cp to copy files from /somepath/somedir/somewhere/.temp_folder to /somepath/somedir/somewhere/ my line /bin/cp -r somepath/somedir/somewhere/.[!.]* ...
1
vote
1answer
25 views

Why is find not excluding old files?

I want to copy all gzipped files from my apache logs that were created less than 43 days ago. As a test, I simply listed my files from find: sudo find /var/log/apache2/ -mindepth 1 -ctime -43 -name ...
3
votes
0answers
55 views

TCP Window Scaling Problem over MPLS

After extensive troubleshooting why the TCP speed over an MPLS circuit is slow in one direction, I figured out that by adjusting the TCP window size the situation improved a lot. Maybe you can tell me ...
0
votes
0answers
27 views

Keep-Alive on forwarding proxy

I have a forwarding proxy (apache 2.2) configured in my environment. My server uses it to connect to a server in the Internet. Is it possible to configure proxy so that it reuses tcp connections ...
0
votes
0answers
16 views

Linux Centos5 lockup - possibly a memory issue?

Here is an OCR of a screenshot of a VPS hosted Centos5 64 bit Linux server that has just frozen up on me. I have now rebooted this VPS guest but would appreciate it if anyone who understands the ...
-2
votes
2answers
59 views

Which file system best handle multiple, concurrent write sessions [closed]

Which file system best handle multiple, concurrent write sessions Which file system can handle more concurrent write sessions; let’s say 32 write sessions? The file system has to handle 32 ...
0
votes
0answers
11 views

shared libraries error trying to run executable [migrated]

I'm trying to run an executable off the command line in a linux cluster environment. The error message I get states libssh2.so.1: cannot open shared object file: No such file or directory I ...
0
votes
0answers
33 views

301 redirect DNS issues

I think I screwed up something in my DNS configuration and now its bugging me for hours. Any help would be greatly appreciated. I own a domain lets call it abc.com Before all the issues happened ...
-2
votes
0answers
32 views

Thread takes 74 microseconds to wake up on RHEL 5.10

I have a usual pattern of a queue fed from one thread and consumed from another, with condition variable and mutex used for synchronization. I noticed (from logs) that it takes 74 microseconds to ...
-1
votes
0answers
34 views

Filenames with illegal characters [migrated]

I recently transferred a backup of my CD collection from a Windows server to a new NAS. When I mount it on my Linux desktop, I'm seeing a lot of directories and files where characters with accents and ...
-1
votes
0answers
24 views

why some programs needs -h and other no [migrated]

I know that is not a exciting question, but yet I don't understand why some programs needs program -h and other program --help sometimes is very boring recognize it
1
vote
1answer
37 views

What is the best way to backup logs in Amazon S3 in real time? [closed]

I want to backup all my logs in Amazon S3 in real time, which tool I should use?
-2
votes
0answers
22 views

having trouble installing Kali Linux on GRUB [migrated]

Does anyone know the specific steps on installing Kali Linux through the grub bootloader. I have what should be a kali linux bootable usb and I'm trying to install it on a Lenovo 64-bit intel laptop ...
0
votes
1answer
68 views

How to SSH to ec2 instance in VPC private subnet via NAT server

I have created a VPC in aws with a public subnet and a private subnet. The private subnet does not have direct access to external network. So, there is a NAT server in public subnet which forward all ...
0
votes
2answers
41 views

Webpage still getting re-directed to HTTPS after commenting out redirect parameters in the httpd.conf file

We set up a Linux webserver running Apache and it is using a SSL cert. We are in the process of putting this application behind a NS appliance so will need to move SSL to the NS. Have a test server ...
-2
votes
1answer
63 views

With two NIC cards, in Linux (Debian), how do I keep the NICs from getting the same ip address? [closed]

I am using Debian 7 (wheezy). I have two physical NICs. I have used ifconfig and gnome-nettool to try and solve this. When I look at the device tool I see eth0 and eth1 (and the loopback). eth0 ...
1
vote
2answers
36 views

Is there a way to get Dell's lifecycle controller status from commandline?

Is there a way to get Dell's LifeCycle Controller status from command line? For instance, there's a way to schedule BIOS configuration, but there's no way to check afterwards whether those tasks have ...
0
votes
0answers
8 views

adding VLV support to OpenLDAP 2.4.31

Apologize in advance - I am not an admin, so the question being asked might be trivial. Still, I am stuck. Any assistance would be greatly appreciated. I am trying to add Virtual List View support to ...
2
votes
0answers
21 views

How to monitor the bandwidth per each iptables masqueraded device [closed]

Question: Which tool could I use to monitor and break-down in real-time which bandwidth is routed by iptables to which computers? Context: I have a linux box masquerading about 15 devices to ...
-1
votes
1answer
29 views

How to check resources consumption sort by websites in Linux Debian server? [closed]

I have apache2 installed on Linux Debian VPS. How can I check how much RAM or CPU consumes particular website? When I run HTOP I see just in user col value "www-data" and in command col value ...
0
votes
1answer
33 views

Temporarily block communication with host if its connecting to port X

I have a Linux VPS, and it's constantly being scanned, bruteforced by some rogue IPs. This VPS is my private server, that serves only to me, and I'm the only user of it. Also I am the only user who ...
4
votes
2answers
95 views

How do I get notified of ECC errors in Linux?

How do I get notified, when a Linux machine equipped with ECC memory recognizes a memory failure? I'm interested in both correctable and uncorrectable errors. if a message is written to dmesg/the ...
0
votes
0answers
22 views

Can anyone please explain how to fix the following errors on RSNAPSHOT?

Some errors occurs during the daily backup of VM's at 1am and is mailed daily with the following output. ***MAIL CONTENT*** ERRORS ERROR: Warning! Could not symlink("PAM.7.gz"), ...
1
vote
1answer
38 views

Suspicious Linux binary file in /tmp/ - Munin?

I have a CENTOS 6.6 x86_64 server running ConfigServer Firewall (installed by us) and Munin (installed by the datacentre). CSF has recently (and for no apparent reason) started sending us warnings, ...
0
votes
1answer
24 views

AWS EC2: proFTPd Login Incorrect

I'm at a loss. I can't get anywhere with this. Got a ubuntu 14.04 instance on ec2 AWS. Trying to get the simple apache, ftp & mysql system up. When attempting to login to proftpd 1.3.5rc3, i ...