All Questions
439
questions
0
votes
1
answer
589
views
Delete files from /tmp/ CentOS6
I'm running Centos6 and inside mt /tmp/ folder I see these files
drwxr-xr-x. 2 root root 4096 Jan 14 2016 fileinstall-1059639640221211034
drwxr-xr-x. 2 root root 4096 Jan 30 2021 ...
0
votes
1
answer
293
views
cant' delete user with userid 502, 503 and on CentOS 6
I have a CentOS VM that shows the list of users like this:
drwx------. 2 504 504 4096 Dec 10 2000 username
So if I try to run the userdeel command I got a message saying that the user does not ...
0
votes
0
answers
70
views
/opt/BitDefender/bin/notify_script.sh failed: exit code 2 on CentOS 6
I'm running CentOS 6.10 and everytime that I run a command I got this message on the console
/opt/BitDefender/bin/notify_script.sh failed: exit code 2
I do not have Bitdefender install so I guess it's ...
0
votes
1
answer
892
views
cannot open /etc/shadow message on CentOS 6.10
When I try to delete a user or add a user to the wheel group I got this message
[root@server]# userdel --remove username
userdel: cannot open /etc/shadow
[root@server]#
I'm running:
[root@server]# ...
0
votes
1
answer
626
views
You have not defined a root partition / which is required for installation of Centos to continue
I am facing the following issue while doing an automated installation of Centos7 with kickstart.cfg
I used the following options in the kickstart file
zerombr
clearpart --all --initlabel
logvol / --...
- 121
3
votes
2
answers
5k
views
How do I update a very old CentOS release (6.2) where yum won't work at all because of outdated openssl certificates?
I have an old CentOS 6.2 machine and need to update a few packages on it (or many packages, I suppose).
However I can't do anything with yum because even after changing the repos to vault.centos.org, ...
- 227
0
votes
0
answers
1k
views
RPM failed dependency that's already installed
We have an old dev server for Centos 6 I want to update Openssl to a modified version 1.0.2k (we have got a C8 server to replace it, but trying to update the old one in the interim).
I have built the ...
- 193
3
votes
1
answer
1k
views
How to Loadbalance Outgoing Traffic with Iptables?
I have a centos 7 server with 5 IPS like 192.168.0.2/29 to 192.168.0.5/29.I want to change Outgoing traffic in roundrobin method because i need to use all ips to my project. so am trying to configure ...
- 31
0
votes
1
answer
869
views
Point symlink to external URL
Not sure if this is possible at all, but maybe there's another way to go about this that will get the same result.
The old situation
I'm running a LAMP server with CentOS 6. This server hosts a LOT of ...
- 119
-1
votes
1
answer
150
views
Automatic Webuzo third party packages updates increasing my disk use
I'm running a self managed CentOS and I've noticed that in 2 weeks my disk space increased like 3Gb out of nowhere, and I believe it was already increasing before. I spent months working on localhost ...
- 107
3
votes
4
answers
24k
views
How can I install or update software with yum in CentOS 6 when CentOS 6 stopped its lifecycle?
I failed to install or update software in my CentOS 6 system these days. I guess CentOS removed their mirror list after CentOS 6 ends its lifecycle after Nov. 30.
I use this mirrorlist:
http://...
- 167
0
votes
1
answer
386
views
Unknown email address sending email from my host
I have a centOS 6 server, with DirectAdmin as the management panel and Exim as the mail server.
In usage directory files (/etc/virtual/usage/) I can see that some emails have been sent from users that ...
0
votes
1
answer
3k
views
Refresh disks on live system without rebooting
I have 4 drives in a server. This is a live server. One of these drives I replaced with a different drive and changed the mount point for the new drive so as to avoid confusion.
After completing the ...
user555159
0
votes
1
answer
421
views
Unable to renew lets encrypt using certbot
I'm running centos 6, I recently tried installing python 3, might have messed something up related to python
if I do
python2 /usr/local/bin/certbot-auto renew
I get
file "/usr/local/bin/certbot-...
- 251
0
votes
1
answer
72
views
Is it possible to give JCMD a service name rather than PID?
I need to monitor a service automatically but the PID keeps changing with every restart
so I want to be able to do
jcmd servicename Thread.print > log.txt
rather than
jcmd 2230 Thread.print >...
- 251
1
vote
1
answer
43
views
/var got misteriously renamed in /var.1 on CentOS6 server
On one of ours CentOS6 servers /var got renamed to /var.1 tonight (around 3.24 am) and a new empty /var folder was created. Not surprisingly, it crashed soon after that.
Circumstances:
Over the ...
- 2,328
1
vote
2
answers
16k
views
SFTP error "Received unexpected end-of-file from SFTP server" on CentOS 6
I'm getting this SFTP error "Received unexpected end-of-file from SFTP server" on CentOS 6.
I've added a new user below
sudo adduser --shell /bin/false paul
sudo passwd paul
Then edited /etc/ssh/...
- 151
1
vote
1
answer
1k
views
OpenLDAP being very slow
I've inherited an OpenLDAP installation which suddenly seems to be extremely slow to respond to queries, breaking many client applications. I've checked the basics; server has plenty of memory free, ...
- 11
0
votes
1
answer
579
views
Reverse proxy does not work on Apache in Cent OS 6.9
I created the sites-available and site-enabled folders, I added the site.domain.com.conf file with a virtualhost in my domain site.domain.com to do reverse proxy in a Nuxt node.js application, which ...
- 143
0
votes
1
answer
965
views
CentOS6 (VM) on Hyper-V (host) - expanding disk size
I have a Hyper-V server (host).
With a CentOS6.x VM (guest).
My goal is:
expand the /dev/mapper/VolGroup-lv_root partition to a total 200GB;
expand the /dev/mapper/VolGroup-lv_swap partition to a ...
- 13
0
votes
0
answers
149
views
Weird error with glibc on CentOS 6
I have a weird issue with some servers that I manage at work.. We use Katello/Satellite 6 to manage our repos/pkgs and subscribe our servers to it. In the Katello Web UI it says that glibc-2.12-1.212....
0
votes
1
answer
4k
views
How to update sqlite3 from python? [closed]
How to update sqlite3 from python?
I am having problems with the old version of Slite3 for python3.6.
I need to upgrade for version 3.22.0 or last
root@server01# python3.6m
Python 3.6.7 (default, ...
- 111
1
vote
0
answers
305
views
Install Zend Debugger or Xdebug for PHP 7.0 on RedHat 6.10 (64bit)
I'm trying to install Zend Debugger or Xdebug on RedHat 6.10 for PHP 7.0.
I have tried the Zend Debugger extension for PHP 7.0 provided by Zend.com at http://www.zend.com/en/products/studio/downloads-...
- 111
1
vote
0
answers
494
views
Autofs is forgetting mount points
I have a set of mount points which I use autofs to access. They have been around for quite some time, and in systems I've inherited running CentOS6 admins before me have implemented cronjobs ...
- 133
1
vote
1
answer
77
views
What to update to keep the server secured?
I've been asked to specify which updates are needed to update our server and have it secured - problem is I'm not an expert on this.
I know that we've very old software. For my work I need PHP 7.2 ...
- 121
1
vote
2
answers
7k
views
Upgrading PHP 5.3 to 7.x on CentOS 6.10 (final) - Unmet Dependencies
I am a bit rusty these days and could use some help. I've cracked opened a few old servers and have started the process of dusting them off. In the process I'm updating things like PHP. I regret to ...
0
votes
2
answers
5k
views
Install multiple PHP on CentOS 6.10
I have PHP 7.0 on my VPS with CentOS 6.10 and there is an application that needs PHP 7.1 and above. Also, there's a separate application that uses a php function that is deprecated in PHP 7.1, so I ...
- 135
0
votes
0
answers
377
views
Centos 6.8 kernel 2.6.32-642.el6.x86_64 crash at linux-2.6.32-642.el6.x86_64/mm/vmalloc.c: 630
I have intel servers running CentOS 6.8 as KVM host,and there was an OOPS or BUG occurs.
kernel crash at kernel-2.6.32-642.el6/linux-2.6.32-642.el6.x86_64/mm/vmalloc.c: 630
Did anyone else have this ...
- 1
0
votes
1
answer
2k
views
Constant ACPI errors in /var/log/messages on Centos 6.10
/var/log/messages is full of this, occurring every second. I can see this has been going on for at least 4 days but any older logs have been purged. Maybe it's always been like this.
Jul 8 04:07:...
- 1,148
-1
votes
1
answer
106
views
Centos running python script every new file added on ftp
We are running on centos 6.9 Final and vsftpd version 2.2.2
Basically we had some folder which is our FTP folder that connected to ANPR/LPR camera. Every camera recognize the plate than the camera ...
- 157
0
votes
1
answer
1k
views
Unable to Install PHPMyAdmin on CentOS 6
I am attempting to update all my software on my CentOS 6 Server. I have updated from PHP 5.6 to PHP 7.2 and now trying to install PHPMyAdmin 4.8 but I am getting an error when running the yum command.
...
- 103
1
vote
0
answers
216
views
Why is the network not reachable while another IP is reachable within the same subnet on CentOS?
Why is the network not reachable while another IP is reachable within the same subnet ?
Network Reachable
[root@vcn03 ~]# ping -I eth0 -c 1 10.52.96.48
PING 10.52.96.48 (10.52.96.48) from 10.52.111....
- 41
0
votes
1
answer
680
views
CentOS 6 OpenSSL Padding Oracle vuln. (CVE-2016-2107)
I am getting a very bad Overall Rating on ssllabs.com, due to the OpenSSL Padding Oracle Vulnerability (CVE-2016-2107).
This is what I am using at the moment (Production Environment):
Openssl 1.0.1e
...
- 1
2
votes
2
answers
285
views
full /etc/ recovery from git
I have a CentOS 6.9 server.
The full /etc directory was under version control.
I accidentally ran 'git rm -R' on it. The server stopped working right away, my ssh session got lost.
I managed to ...
- 23
0
votes
1
answer
216
views
root password found changed. Did someone break into my server? [duplicate]
This morning I found myself unable to log into the root account on one of my (CentOS 6) servers. I booted into single user mode and reset the root password. Everything seems to be working normally now....
- 493
1
vote
1
answer
281
views
Newrelic nginx plugin install (python issue)
This plugin won't let me install and I tried to write in to get help from nginx.. (not a good experience). The plugin says I do not have the daemon installed for python, but I infact do (I believe). I ...
0
votes
1
answer
1k
views
How to resolve yum install mod_php71u conflict?
When I run the command yum install mod_php71u I get the following message:
Error: httpd24u-tools conflicts with httpd-tools-2.2.15-60.el6.centos.6.x86_64
Error: httpd24u conflicts with httpd-2.2.15-...
- 225
0
votes
1
answer
2k
views
ulimit for root keeps resetting
Using CentOS 6.6
In /etc/security/limits.conf I have set the following:
* soft nofile 65535
* hard nofile 65535
root soft nofile 65535
root hard nofile 65535
In etc/security/limits.d/90-nproc.conf ...
- 216
0
votes
1
answer
611
views
Migrating CentOS 6.9 VM to Server 2016 missing eth0 and stall during boot
I have an existing CentOS 6.9 VM running in Hyper-V on Windows Server 2008 R2. I want to migrate this machine to a new Windows Server 2016 installation. This is the last VM that will allow me to shut ...
- 13k
0
votes
1
answer
1k
views
How to reload httpd service on changes automatically using Supervisord?
I am working in a Docker container that so far have the following ready to go:
CentOS 6 (latest, I think is 6.9)
Apache 2.2.15 (latest on CentOS6 repositories)
PHP 5.3.3 (latest on CentOS6 ...
- 722
0
votes
0
answers
120
views
CentOS 6 deleting files from /root/ after a reboot? [duplicate]
Twice recently I've noticed that my vim settings have changed to defaults. Investigation shows that all files have been deleted from my /root/ directory. (Yes I currently log in as root, that's a ...
- 1,148
0
votes
0
answers
1k
views
vm.swappiness works differently on CentOS 6 and 7
We have an Hadoop cluster of CentOS 6 (kernel version 2.6.32-504.el6.x86_64) and CentOS 7 (kernel 3.10.0-327.el7.x86_64) servers .
All the nodes are configured with a swapinness of 1.
All nodes have ...
- 111
0
votes
1
answer
435
views
How to fine-tune iscsi-multipath queueing timeout?
I'm tuning the configuration for a multipath iscsi on a Centos 6 server.
At the moment I'm using the following parameters for path retry:
...
polling_interval 1
no_path_retry 12
...
That means, 'if ...
- 240
1
vote
1
answer
6k
views
rm no longer asking for confirmation when deleting files?
On my CentOS 6.9 box I've just spotted that rm myfile no longer asks me if I really want to delete it, it just deletes it.
I've run alias and there's nothing to do with rm there.
What else could be ...
- 1,148
7
votes
1
answer
17k
views
how to install docker-ce 17+ on centos 6.9?
Im currently trying to install docker-ce 17+ on a centOS 6.9 server, however, when running yum install docker-ce i get the following errors:
Error: Package: docker-ce-17.06.1.ce-1.el7.centos.x86_64 (...
- 1,383
1
vote
1
answer
2k
views
dracut: Switching root
After my hosting company did some changes (no technical description for them) I got the following boot error for my CentOS:
What I must do to get my servers up! I tried to ask for support at the ...
- 121
0
votes
3
answers
5k
views
Errors in crontab file, can't install - only on CentOS 7, not CentOS 6.4?
CentOS 6.4 is happy with this, but CentOS 7 tells me "errors in crontab file, can't install.". What's wrong with this crontab file (just the 2 lines)?
0 0 * * * /home/web/backup-db.sh
0 1 * * * /...
- 101
2
votes
1
answer
2k
views
Force password for ssh login
I have two servers with CentOS6 and CentOS7.
Both of them has SSH access. My client computer has Ubuntu 16.04.
For CentOS6 I can login with command
ssh -i ~/.ssh/serv1 root@serv1
but command
ssh ...
- 193
2
votes
1
answer
996
views
Postfix : Rate limit outgoing mail by mx of recipient and sender
Been learning Postfix and trying to setup my own mail queue server for newsletters (no mailchimp or sendgrid).
I'm stuck on the last thing I wanted to implement, which is delays/queue. I found a ...
- 345
0
votes
0
answers
83
views
What is root cause of this huge system load
I am totally puzzled here.
A couple of CentOS 6.6 x64 servers have unexpected huge system load.
I think I have checked everything, but no idea about reasons why.
I guess there should be a bottleneck ...
- 1