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2
votes
1answer
43 views

How to change mail “from” name for Fail2Ban email notifications?

I have Fail2Ban sending me emails from various servers but I can't tell at a glance which server because the email "from" name is always just "Fail2Ban". I've managed to set the "from" address ...
0
votes
0answers
34 views

Tomcat: multiple domains from a single instance

I'm trying to host multiple domains on a single tomcat instance. I have it working but I'm not sure if it is the correct way to do things. The server.xml Hosts section is changed to this: ...
-1
votes
0answers
30 views

Centos 5.11 SSL3_GET_SERVER_CERTIFICATE:certificate verify failed

I am trying to resove a problem with a PHP5.6 application that uses curl to connect to a SSL based service I have added the certificate I think to ca-bundle.crt but I am still getting error ...
-2
votes
0answers
28 views

Find Qemu-KVM Version on Centos

Apologies if this has already been asked, I have been searching for the last 30 minutes or so and I still can't find it. I was wondering is there a way for me to find what version of qemu-kvm that I ...
0
votes
1answer
41 views

Server becomes unresponsive after several days

I have a dedicated server that becomes unresponsive after several days of running-time. Sometimes it's 1 day and sometimes it's 5 days but it always happens and I can neither reach the server via ssh ...
2
votes
1answer
38 views

x2go passphrase prompt then authentication fail

Have read following post and although it had a similar title it wasn't the same problem: Able to connect by SSH, but not x2go From windows 7 client and windows 10 client at home to centOS6.7 remote ...
-1
votes
2answers
81 views

perform a full server backup using ssh centos [closed]

I have a dedicated server at hetzner and they told me the hard drives are broken and they must replace them with new ones. I MUST back up all my websites and databases, that is my life work! The ...
1
vote
1answer
72 views

Curl returning error 52 or 56 with REST API call spanning more than 5 minutes

So I have been trying to figure this one out for about a week now. Here is the run down: I use CURL in PHP to pull data from an API. As the response to the API call gets bigger (pulling over 15k ...
0
votes
1answer
21 views

barnyard2 for snort permission denied

I installed barnyard2 for snort, but when i run command below this error appear. [root@localhost snort]# barnyard2 -c /etc/snort/barnyard2.conf -d /var/log/snort/ -f snort.log -w ...
-1
votes
2answers
54 views

turn the server on after rebooting

I have a server with CentOs 6.6 and I was trying to reboot it with the command reboot. It was taking forever and I thought the terminal in my mac froze and so I quitted the terminal app from my mac. ...
0
votes
0answers
19 views

spacewalk error for centos 5 : Error: requested datatype primary not available

I setup spacewalk on centos 7 and then integrated clients with it. I registered clients for centos 7,6 and 5 with them respective software channel. I can push package installation request from ...
0
votes
1answer
23 views

CentOS 7 (1503) - BIND9 new install not responding to external DNS requests

I am trying to set up an authoritative BIND server and every time I run into the same problem on CentOS. I can run the dig command locally for zones on the server however when I run nslookup - ...
0
votes
0answers
16 views

PBS/Torque submission hung/stuck

Got a mini-cluster I'm configuring/testing with one login node and one compute node. I use Maui for a scheduler with Torque. However, I have an issue submitting a test job - job never starts. Login ...
0
votes
2answers
116 views

centos 6.7 nx freenx unavailable

I have a standard server setup for our application that requires freenx that I have been installing since centos 6.4, on a couple dozen servers. This server was given to me by a new hosting provider ...
1
vote
1answer
27 views

Dest host dont accept UDP when there is no route to source

I have three hosts with following config: Host A: IP:192.168.1.1/24 Host B: IP:192.168.1.2/24 Host C: IP:192.168.3.1/24 Everything happens on CentOS 6, and all interfaces are VLAN tagged (if it ...
2
votes
1answer
28 views

check spamassassin DNSBL results

Is there a way to check the results of spamassassin on an email when it checks DNSBL? I see nothing in the maillog and nothing in the mail header. I do not know if it is actually querying the DNSBLs ...
1
vote
0answers
18 views

Cannot create a user in IPA server for remote login

I had created a new IPA IdM server in Centos 7 using script install-ipa-server. The installation was successful. After installation, I was not able to create a user using IPA user-add user, it asks ...
0
votes
2answers
37 views

Allow access in home directory for apache but not other users?

I build a website that automatically manages a dedicated server. It does all sorts of things like creating users and apache settings to point to their home directory. The home directories host game ...
0
votes
1answer
64 views

PHP 5.4 packages are installed but the server is using PHP 5.3

I'm trying to upgrade PHP 5.3 to 5.4 on a CentOS 6.7 VPS. Followed the Webtatic instructions here: https://webtatic.com/packages/php54/ Now at a stage where the 5.4 packages are installed, but PHP ...
0
votes
1answer
24 views

bsdtar vs gnu tar - sparse files

I've been working with qemu raw images and I just had a few questions about using tar with them. From what I've read, bsdtar with kernel >= 3.1 is able to handle the sparse image files much quicker ...
1
vote
0answers
20 views

Rotation and continuous writing of large log files with rsyslogd

I have an extremely busy log file (let's call it /var/log/service.log) that is also frequently searched for troubleshooting reasons. Output to it is nearly continuous and 24/7. It probably puts out ...
0
votes
1answer
36 views

Curl, lynx etc not accepting certificate locally but OK remotely

When I connect to my web server to view a site over HTTPS, I get the nice green EV thing in the address bar. When I use curl locally to connect, it complains about the certificate and dies. I'm aware ...
0
votes
2answers
61 views

qemu-kvm take 100% cpu during start Win 7

I have Centos 6 with qemu-kvm version: qemu-kvm.x86_64 2:0.12.1.2-2.448.el6_6.4 On Dell Precision with 2x Xeon 5110 When I run VM qemu-kvm process take 100% of CPU and starting Windows on ...
0
votes
0answers
8 views

Maldet HIT LIST - what now? [duplicate]

I have gotten the following result after a maldet scan, should I just delete the 3 files, or is there something else I should do? FILE HIT LIST: {HEX}gzbase64.inject.unclassed.15 : ...
-1
votes
1answer
57 views

Why does crontab run twice while I set once everyday?

I used CentOS for Wordpress web server. I want backup media and SQL once per day, so I edit crontab as below: [john@cent ~]$ crontab -e TZ=Asia/Ho_Chi_Minh 15 3 * * * /bin/sh ...
0
votes
2answers
79 views

“503 5.5.1 Error: authentication not enabled” when trying to connect to my postfix server remotley

I have the following: postfix-2.10.1-6.el7.x86_64 cyrus-sasl-lib-2.1.26-17.el7.x86_64 cyrus-sasl-plain-2.1.26-17.el7.x86_64 cyrus-sasl-2.1.26-17.el7.x86_64 my postconf -n is: alias_database = ...
0
votes
2answers
105 views

Dracut-Kernel update required but won't when running Yum on Centos 6.6

I'm a fair newbie when it comes to Linux, but I'm having problems updating a small Centos 6.6 box that's been working fine and updating previously. When running yum update I get the error below. I've ...
2
votes
1answer
33 views

Does 'tuned' need to keep running?

On my CentOS 7 systems, I use tuned-adm to set a profile appropriate to the environment during configuration, but after that, I never subsequently change that profile. It seems that the tuned system ...
6
votes
3answers
179 views

CPU overloaded but no proccess is using more than 1% [duplicate]

I am monitoring a Cpanel (centos) server which have a 2-core CPU (4 virtual CPU cores) and it seems to be overloaded because I got this values using top: load average: 11.80, 13.30, 13.02 Cpu(s): ...
0
votes
1answer
45 views

Centos 7 Avahi doesn't resolve from windows machines

I have installed and configured avahi-daemon and samba on Centos 6.6 and it's working when I am testing it from an Ubuntu machine. e.g.: ping myhostname.local or smb://myhostname.local However, when ...
19
votes
2answers
3k views

Should I be worried that yum update suddenly wants to update well over 100 packages on my CentOS 6 system?

I get an email alert whenever there's something to update, and typically do them that day. This tends to happen most days. For whatever reason I've had no alerts since 20th July until today (I ...
3
votes
2answers
657 views

CentOS 6.6 (Final) - yum kernel upgrade troubles

Well-being everybody, I'm a SysAdmin Junior managing 3 CentOS Virtual (Web)Servers, this morning I'm facing some troubles with package manager yum. As usual operation, this morning I've run the ...
1
vote
0answers
13 views

Why is Postfix throwing “malformed response” and “bad command startup” errors when I send mail? [duplicate]

Why is Postfix throwing "malformed response" and "bad command startup" errors when I send mail? When sending an email from my server like: mail -s testing email@example.tld this is a test EOT I ...
0
votes
0answers
24 views

Mikrotik and freeradius, wpa2 enterpise, connection caching?

I'm not sure if connection caching is the correct term, but here are the symptoms and setup. We have a freeradius server that proxys to a windows radius server for ad auth on our wireless. All the ...
-2
votes
2answers
89 views

postfix error: 535 5.7.8 Error: authentication failed: authentication failure

I need to connect to Dyn mail relay and I'm using their KB. I'm trying to connect to my postfix server with telnet to port 25. This is the postconf -n alias_database = hash:/etc/aliases alias_maps ...
-1
votes
1answer
45 views

Lots of mysql processes log error too many open files

I'm having problems with a CentOS server thats running slowly, htop shows about 40 lines of this which I think is causing the problem: 27218 mysql 20 0 17.7G 7449M 5088 S 0.0 46.8 0:00.24 ...
0
votes
0answers
36 views

Centos 6.4 ignoring static ip address, getting dhcp address?

I have a Centos 6.4 server, which has been running at the same ip address for over a year. Today the server was rebooted, despite being setup to have a static ip, it used an ip from the dhcp server. ...
0
votes
2answers
36 views

Is this a user/pass connection or an email communication connection?

I have lines like these in /var/log/messages: Jul 12 01:26:00 h2 xinetd[1596]: START: smtp pid=11253 from=::ffff:221.219.213.54 I need to know if that is an email connection like the ones being made ...
-1
votes
1answer
44 views

Change MX record to another server

I have a host-machine with Centos 7 and a guest machine with Centos 6.6. I want my guest to be a mail server on dedicated static ip for all my domains (on the same host-ip and not). P.S. I use ...
4
votes
2answers
120 views

Centos 7 server can't see Disk Array disks

Context I have a server freshly provisionned with CentOS 7, connected to a Disk Array with a Fibre Channel connection. I want to mount the Disk Array's disks on my server's file system, and then ...
0
votes
1answer
38 views

CentOS VM deployed on ESXi 5.5.0 has no IPv4 address

This is what I have tried: I deployed a Centos7 VM on my friend's ESXi 5.5.0 and it works fine. I install the same copy of ESXi on my desktop and migrate my VM to my own newly installed ESXi server. ...
1
vote
1answer
183 views

Centos 7/1503 — Getting Error setting up base repository during installation

I've created bootable USB flash drive using recommended LiveUSB Creator using CentOS-7-x86_64-Everything-1503-01.iso. Now being at Installation Summary screen I'm getting Error setting up base ...
1
vote
0answers
32 views

CentOS Apache redirects every port to 80

I am running CentOS release 6.4 (Final) on my server and I have the following problem. I have an Apache 2.2.15 installation running perfectly, but then I added another virtual host to the ...
-2
votes
1answer
39 views

Centos 6.6 on HP Proliant DL360 G5 - remote ssh issue

i have a fresh instalation of centos 6.6. on a HP Proliant DL360. i have installed mysql, php, apache i unable to login through putty from my ip x.x.x.x but when using within my lan 192.168.0.5 i can ...
0
votes
0answers
4 views

My harddrive partitions are lost during attempting to install centOS 6.6. How to get back? [migrated]

I had a windows 7 installation. I wanted to dual boot with centOS. So I separated a space for centOS and created root and swap areas. Then I installed centOS 6.6 normally. But it was not dual ...
0
votes
0answers
28 views

Uwsgi “Permission denied” after “Gracefully killing worker”

I run python environment with uwsgi on old centos 6.6 (it necessary for customer). But often i get error 502. log of uwsgi with error: 1) Request to /show/12763 took 0.474370002747 seconds Request ...
0
votes
1answer
21 views

ip6tables port dropping and defaults

On CentOS 6, ip6tables is literally giving a nightmare on this machine. Having ip6tables -P INPUT ACCEPT ip6tables -P OUTPUT ACCEPT ip6tables -P FORWARD ACCEPT with ip6tables -A INPUT -p tcp -m ...
-1
votes
1answer
123 views

CentOS 7 firewall-cmd not found

I have just installed CentOS 7: [root@new ~]# cat /etc/redhat-release CentOS Linux release 7.1.1503 (Core) I am trying to configure the firewall, and I'm told that in CentOS 7 iptables is no ...
-2
votes
1answer
44 views

Where is the /var folder? [closed]

I have new centos 6.6 install. When I do a df-h I get the following. My worry now should I resinstall to create a separate /var or leave it where it will be enough? Where will the /var be in the / or ...
0
votes
0answers
21 views

xrdp changing PATH environment variable

All, I'm using xrdp to connect to a Centos 7 box. I notice that my PATH environment variable is different depending on whether I RDP in or SSH and I can't for the life of me figure out where that's ...