Questions tagged [centos7]

CentOS is a Linux distribution standing for "Community ENTerprise Operating System" and is a rebuild of "Red Hat Enterprise Linux" (RHEL), belonging to the same company that distributes RHEL (Red Hat, Inc.). The "CentOS7" tag refers to versions 7.x-xxxx of CentOS, working only on 64-bit hardware. Maintenance updates for CentOS/RHEL 7 will stop on June 30, 2024, with full updates ceasing in winter of 2019.

Filter by
Sorted by
Tagged with
-1
votes
1answer
9 views

Postfix, Dovecot and Spamassassin unexpectedely fill-ups my disk usage

I am on VPS using CentOS 7, LAMP using Postfix, Dovecot and Spamassassin with Rainloop as my email client. When I have started Postfix using: systemctl enable postfix systemctl restart postfix ...
1
vote
0answers
7 views

Removing firewalld passthrough rules

This one is causing me confusion. Add a permanent passthrough rule: - # firewall-cmd --permanent --direct --add-passthrough ipv4 -I INPUT -p TCP --dport 65533 -j DROP success Issue a reload so the ...
0
votes
0answers
203 views

Strange behaviour in CENTOS 7 where binary is not available as root, but is available to user data process

In AWS EC2, I am using Centos 7, I observe strange behaviour where a binary for Hashicorp Vault CLI (/usr/local/bin/vault) is available during boot to commands I run in user data. It is also ...
-1
votes
0answers
21 views

How to do load balance [duplicate]

I have a Linux (CentOS 7) server with 10 IPs. I Would like to use all IPs to sent a mail. For example: "First Outgoing traffic wants to send first IP second Outgoing traffic wants to send second ...
0
votes
0answers
9 views

Icinga check_by_ssh has the whole command line in the output

My service: define service { host_name myHost service_description Test Status check_command check_by_ssh!/usr/local/bin/status -k Key1 -c /usr/local/config.xml use ...
0
votes
0answers
13 views

CentOS 7 Router/DHCP Server: Second NIC adapter plugged in but not sending internet through the cable

I have a CentOS 7 server configured as a router/dhcp server There is two NICs installed in it - The first one is receiveing the internet from outside, and its working as it should be. The second NIC ...
1
vote
0answers
11 views

Packet Loss with NIC Teaming and Independent Switches

I've got several Linux hosts (CentOS 7, x86_64) configured with NIC teaming for redundancy and load balancing. Two 10 GBit ports on the host are connected to two 10 GBit switches and configured to ...
0
votes
0answers
10 views

KVM vps scsi disk

CentOS 7 ISO installer is not able to detect disk when using scsi disk driver on a KVM server with Ubuntu 18+ on it. <disk type='block' device='disk'> <driver name='qemu' cache='none'...
0
votes
0answers
66 views

kex_exchange_identification: Connection closed by remote host

Trying to connect to web servers running on Centos 7 via jump server, earlier this connection used to work fine without any problems, but not sure now what went wrong. Following is the status $ ssh -...
-1
votes
0answers
12 views

Centos and Dell poweregede Disk bay status

I like to know how many disk installed in Dell poweredge rack server and how many bay is free and what is the disk supported. I like to find through centos commands. Regards Arvind
1
vote
0answers
25 views

Tracking TCP Connection in background

I am looking for a daemon utility to track all non local TCP connections and which binaries establish the TCP connections (actively and passively) with which IPs and ports. auditd seems like a great ...
0
votes
0answers
29 views

Boot screen stuck on “[ ok ] Started Crash recovery kernel arming”

I have a CentOS7 VM managed by Nutanix hypervisor that recently experienced a disk issue (dmesg showed "Buffer I/O error on dev dm-5, logical block 62133147, lost async page write"). After ...
0
votes
0answers
13 views

rkhunter update failed, cannot find dat files

I have a CentOs 7.6 up and running with rkhunter for a long time now. After all my os updates, I run rkhunter --update --propupd but it fails since recently. [ Rootkit Hunter version 1.4.6 ] File ...
0
votes
0answers
21 views

CWP7 subdomain DNS failure: loading from master file failed: file not found

I use CWP7 as the web panel of my VPS. I just tried to add a new account with a domain like demo.example.com but it seems something is wrong with its DNS records. When I want to add the domain to ...
0
votes
0answers
22 views

XRDP connecting for only root user's desktop in a CentOS 7 + LXQT Desktop environment

We have a CentOS 7 server where we have installed LXQT desktop environment. We also have xRDP installed in that machine. We were able to connect to root user in XRDP and see the desktop. However for ...

15 30 50 per page
1
2 3 4 5
186