0
votes
1answer
35 views

no package ipset available (centos EL5 x86_64)

I want to install ipset, but none of my repos seem to have it when I run yum install ipset [root@ora1 /]# cd /etc/yum.repos.d/ [root@ora1 yum.repos.d]# ls CentOS-Base.repo CentOS-Debuginfo.repo ...
1
vote
1answer
126 views

trying to install mongo but getting errors

I am following mongo site (http://docs.mongodb.org/manual/tutorial/install-mongodb-on-red-hat-centos-or-fedora-linux/ ) to install mongo on my centos 5.1o I am getting following errors sudo yum ...
0
votes
1answer
131 views

Enabling HugePage support in CentOS

I'm trying to tune JVM performance by adding +UseLargePages parameter. As it threw error, I figured that it's not supported in my OS. I'm using CentOS (5.10) -- Linux 2.6.16.33-xenU 64 bit ...
0
votes
1answer
144 views

no package provides libssl.so.10

I have some dependencies I need to resolve and I cannot: [root@h tmp]# ldd /usr/lib64/collectd/mysql.so linux-vdso.so.1 => (0x00007fff9b070000) libmysqlclient_r.so.16 => not ...
0
votes
0answers
94 views

CentOS 5 kdump not working

I am trying to configure my CentOS 5.9 machine to dump a vmcore file to /var/crash when the kernel panics. I have installed kernel-debuginfo and kexec-tools according to this site, with the exception ...
0
votes
1answer
57 views

PHP debugging under Apache on CentOS 5.9

After upgrading a vBulletin installation, accessing any page tells me that files are missing--even though they exist in the filesystem. Based on other questions I found here, I have tried changing ...
0
votes
1answer
38 views

DHCPD: permanently leased IP being offered (twice) to random node and assignee

Greeting. On a small LAN (< 20 networked devices) with a cento6 5.9 server/dhcp-3.0.5-33.el5_9). I am configuring permanent leases thusly (dhcpd.conf, partial): range 10.115.64.60 ...
0
votes
1answer
754 views

Connection closed by remote host followed by Connection refused

All of a sudden my ssh connection to server has been damaged. Here is what's happened: $ ssh -vvv -p <PORT> -l <USER> <HOST> OpenSSH_5.3p1 Debian-3ubuntu7, OpenSSL 0.9.8k 25 Mar ...
0
votes
1answer
141 views

Apache httpd + FreeTDS hangs until restarted

Every so often requests to a Linux server (say, linux.example.org) where the web app (Django) pulls in data from a SQL Server database via FreeTDS will hang. Requests on other servers pointing to the ...
1
vote
1answer
171 views

Having to restart xinetd service to connect via telnet

In my environment I have a linux server running CentOS 5. I have setup a telnet service on this server in order to connect via telnet. However, after some time I try to connect and I get this error: ...
0
votes
1answer
100 views

Does net-snmp for CentOS support SNMP v2 and v1?

CentOS 5.9 | net-snmp-5.3.2.2 I'm running netsnmp on a CentOS 5.9 box and it's unclear to me from the config on whether or not it support SNMP v2 and v1. I've always used SNMP v3 and ...
-2
votes
1answer
37 views

My websites can't be reached [closed]

I managing a VPS that has some domains running on it. I made a minor changes to the server through plesk control panel like some changes to the IP address of the server. Now i am only the person how ...
-1
votes
1answer
71 views

Where is ssh daemon log file

I am facing a strange issue on my Centos 5.5 VMware virutal machine. SSHD service stops responding after working for few days. At the same time cmd>telnet server 22 give me no response. It works ...
-1
votes
1answer
103 views

How to block ports (in Linux) based on the IP used to connect?

I'd like to block specific ports based on the IP used to connect to my (Linux) dedicated server. For example, I have the following IP's assigned to my dedicated server: 192.168.0.1 192.168.0.2 ...
2
votes
1answer
252 views

ssh connection operation timed out using rsync

I use rsync to backup my remote server on my local device but when I combine it with a cron job my ssh times out. Just to be clear, the data is stored on a remote server and I want it stored on my ...
0
votes
1answer
57 views

Setup a preview subdomain when creating a new account in WHM

Running WHM on CENTOS 5.9 x86_64 virtuozzo VPS. When I create a new account, for example "example.com", I'm wanting to enable a "preview" feature which will allow the user to view the contents of ...
-4
votes
3answers
98 views

Cannot login as root user in ssh [closed]

I create an user with root prevelages in my server. Now i cannot login into the server as root through ssh. Also I cannot access the vi editor through the new user login.
1
vote
0answers
256 views

correct samba configuration for write access to group?

I'm trying to reconfigure Samba/CIFS on a CentOS client machine specifically because the current setup requires any users logged into the machine to sudo writes to the samba share. I want to take ...
1
vote
1answer
632 views

What does this kernel error mean and how should I respond?

The following except is taken from the logwatch of a production LAMP web server I'm about to inherit. It is a dedicated Dell server running CentOS 5 with RAID 1 across two 1TB drives. I have little ...
0
votes
1answer
2k views

What exactly is the sm-client service and when is it used?

When I restart Sendmail services, I see the following: [root@foo ~]# service sendmail restart Shutting down sm-client: [ OK ] Shutting down sendmail: ...
1
vote
1answer
935 views

How can I configure netcat (or some other stock linux utility) to listen on a specific port on a secondary IP address?

CentOS 5.9 For testing purposes, I want my CentOS server to listen on a secondary virtual IP (eth0:0). I'm familiar with nc -l -p <port> but it only listens on the primary. Is there a way I ...
1
vote
2answers
1k views

Determine which guest is running on XEN: HVM or PV guest

I'm working with a Xen host which is installed XenServer from Citrix by someone. He already installed a lot of CentOS 5.2 guests on the host. I wonder how to check those guests to know they are PV ...
0
votes
2answers
73 views

Limit if open files mistake on centos 5.5

On my centos 5.5 server,i set in limits.conf with bellow: * soft nofile 409600 * hard nofile 409600 but when i issue command:ulimit -n. It tell me : open files (-n) 1024 I ...
-1
votes
2answers
121 views

/var/log/messages filled with FAIL: check_mk address from=

The /var/log/messages log file on our server is filled with endless lines of May 5 11:10:38 crm xinetd[24532]: FAIL: check_mk address from=1.2.3.4 It seems to log every 3 minutes or so, the number ...
1
vote
4answers
125 views

Good pratices to update servers? [closed]

I have many servers running CentOS 5.* and CentOS 6.*, I would like to update them, but there's some applications running and I might crash these applications, which led me to write this post with ...
0
votes
1answer
284 views

Can't connect to remote CentOS server, possibly disk full

We have a remote server using CentOS 5 with Apache 2.2/PHP/MySQL that have crashed due to possible hard disk being full. Can't access WHM - giving "500 Internal Server Error" Can't access SSH - ...
0
votes
1answer
696 views

Cannot start NFS daemon

I'm trying to set up a NFS share but I cant start NFS service: $ service nfs start Starting NFS services: [ OK ] Starting NFS daemon: ...
6
votes
3answers
2k views

Cent OS: How do I turn off or reduce memory overcommitment, and is it safe to do it?

From time to time "my" server stalls because it runs out of both memory and swap space. (it keeps responding to ping but nothing more than that, not even ssh). I'm told linux does memory ...
0
votes
2answers
978 views

sshd[4344]: error: ssh_selinux_setup_pty: security_compute_relabel: Invalid argument?

OpenSSH_5.8p1, OpenSSL 0.9.8e-fips-rhel5 01 Jul 2008 selinux-policy-2.4.6-338.el5 pam-0.99.6.2-12.el5 SELinux is running in permissive mode: # sestatus SELinux status: enabled ...
-2
votes
1answer
60 views

Linux Server HDD Corrupted

Today I put my forum offline just before scheduled Cpanel backup. An hour later when I checked it says DATABASE error occured(or whatever the database error was) I logged into SSH and perform reboot. ...
2
votes
2answers
271 views

Linux process swap usage is greater than the overall system swap usage

I have a strange problem that when I run top command it shows that some processes are using around 1.5GB of swap space but then the overall usage of the system swap is way to less to something around ...
0
votes
1answer
66 views

User permission restriction

I am using CentOS 5.5. I would like to control user that can access granting application. User can't use any application or any resource (e.g calculator, default application of normal user)that isn't ...
1
vote
4answers
479 views

Linux high load with ImageMagick convert utility and server freezes (blktrack output attached)

I'm using ImageMagick to convert a JPG to TIF file, and I'm using the limit options for Imagemagick as below: /usr/bin/convert -limit memory 256 -limit map 512 subjectfile.jpg -colorspace Gray -depth ...
0
votes
1answer
269 views

CentOS server high load and server freezes

My server seems to get sudden high loads within second and when I run dmesg, following logs appear: INFO: task auditd:2185 blocked for more than 120 seconds. "echo 0 > ...
2
votes
2answers
145 views

Dhcrelay init.d script runs improperly

I am trying to use dhcrealy on a CentOs 5 kernel which have kernel version 3.5.3. I configured /etc/sysconfig/dhcrelay file like that dhcrelay -i eth1 192.168.0.1 While dhcrealy is stopped, I ...
0
votes
1answer
98 views

linux server frozen after yum update

Updated today with yum update: qmail-scanner x86_64 1:2.10-8.el5.art atomic 349 k tortixd x86_64 2.2.23-8.el5.art asl-3.0 1.1 M tortixd-mod_ssl no errors but after 15 minutes the servers started to ...
2
votes
2answers
697 views

Httpd restart “Address already in use” error

I have an .rpm, which I created. In its %post part, I do some stuff, and in the end of this script, i call service httpd restart. It gives the following error: + service httpd restart Stopping httpd: ...
0
votes
1answer
181 views

IP bases access control list script

I would like to setup ACL (python script or any ready made Centos compatible scipt) & limit rate for all IP addresses, who are hitting the site very frequently. For example crawlers, bots (except ...
1
vote
2answers
1k views

Auto restart server if virtual memory is too low

There are quite number of software running on my server: httpd, varnish, mysql, memcache, java.. Each of them is using a part of the virtual memory and varnish was configured to be allocated 3GB of ...
0
votes
1answer
839 views

How can I confirm if my CentOS server supports multiple CPUs?

CentOS 5.8 | VMWare I've got a server running a hardened version of CentOS 5.8. I've been using a single CPU on it and am planning to add another (via vmware). When I run uname, I see SMP which ...
3
votes
3answers
139 views

one 16K random read I/O issues 2 scsi I/O (16K and 4K) requests in linux

I noticed weird issue when benchmarking random read I/O for files in linux (2.6.18). The Benchmarking program is my own program and it simply keeps reading 16KB of a file from a random offset. I ...
-1
votes
2answers
54 views

How to configure apache2 from source with php from repo?

I'm asking this question out of my curiosity. Is there anyway around to configure apache2 with the php that had been install through yum? Or vice versa? Because based on my self experiences and ...
-1
votes
3answers
90 views

Will the data be deleted when resizing a partition [closed]

I'm planning to resize one of the server partition from 40GB to 1900GB. The current partition has files on it while the space to be added is unallocated. Will my existing files be deleted? Any help ...
0
votes
0answers
92 views

Java won't install

# rpm -ivh jre-7u6-linux-x64.rpm Preparing... ########################################### [100%] package jre-1.7.0_06-fcs.x86_64 is already installed But I also get: # rpm -e ...
1
vote
1answer
157 views

Can't Send Large Messages Using Sendmail CentOS 5

I have recently replaced a Fedora Core 3 server with one running CentOS 5 for the purposes of a mail relay in a DMZ. My problem is that when the server is sending messages to a particular remote ...
1
vote
2answers
12k views

Too many Bind query (cache) denied, DNS attack?

Once Bind crashed and I did: tail -f /var/log/messages I see a massive number of logs every second. Is this a DNS attack? or is there something wrong? Sometimes I see a domain in logs like this: ...
5
votes
3answers
2k views

Clear / Flush cached memory

I have a small VPS with 6GB RAM hosting a couple of websites. Recently I have noticed that my cached memory size is quite high - see below: Cpu(s): 0.1%us, 0.1%sy, 0.0%ni, 99.1%id, 0.0%wa, ...
2
votes
1answer
7k views

Linux service --status-all shows “Firewall is stopped.” what service does firewall refer to?

I have a development server with the lamp stack running CentOS: [Prompt]# cat /etc/redhat-release CentOS release 5.8 (Final) [Prompt]# cat /proc/version Linux version 2.6.18-308.16.1.el5xen ...
2
votes
2answers
891 views

Monitor or log directory permission changes?

I'm having an issue with a cPanel shared server running CentOS 5 where a few directories under the public_html folder keep getting changed to 777 from 755. The customer says they are not changing it ...
3
votes
1answer
133 views

Is it possible to migrate CentOS from (Mac) VMware Fusion into (Cisco VPS) VMWare ESXi?

Is there any solution to clone CentOS (full mirror) from Mac VMware fusion to VMWare ESXi on Cisco VPS server?