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

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7 views

What you want to see in daily linux server monitoring mail?

I write bash script, which collect information from ubuntu server and send it by mail. With this script you can see: Your clamav antivirus information Which ports are open How many users in your ...
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22 views

Recover rm'd files from last day? [on hold]

TL;DR: Can you recover only the files that were deleted today? I'm in the process of testing different linux distros as I haven't found the right one yet. Part of this testing involves mounting a ...
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35 views

Debian DNS servfail

I have serious problems, and been struggling for days with this...Please help me what's the problem? :( i get servfail error everytime i do nslookup, and i tried everything... Please save me! very ...
4
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0answers
13 views

User permissions/feature limitations of the native zfs smbshare service on linux

I'm using zfs on linux, using the sharesmb=on option to try out the native smb share feature instead of adding the zfs tank path to my smb.conf file. The share has shown up on my windows machines, ...
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0answers
6 views

looking for - dedicated server with high connection per second limit (or without one) [on hold]

We are looking for a provider that offers servers located in the US/CA, with (guaranteed) high limit of connections per second, or without any limitations Currently, we have a server at OVH but their ...
0
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1answer
23 views

No space to snapshot on xenserver - Catch 22 to move the VMs

I am trying to move some VMs from one Xenserver onto another one but am stuck in a catch 22 situation. I have 3 VMs running on this server all on one storage repository. I don't have space to snapshot ...
1
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0answers
18 views

hdparm serial number is garbage

I'm trying to read the model and serial number from a drive using "hdparm -I /dev/sda" and I find on some systems (eg: VMware virtual machines) the serial number and model often return garbage (see ...
0
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0answers
8 views

EasyApache Error -> undefined reference to `SRP_VBASE_free'

I am trying to upgrade Apache using WHM's EasyApache script but I am getting the following strange error during the build. Can someone please guide me what this error means? ...
1
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0answers
30 views

Ubuntu 12.04.2 LTS Server - Randomly hangs with no logging

My server randomly hangs and becomes unresponsive without any logging (dmesg, syslog, kern.log, boot.log, and messages). I cannot predict when it is going to happen. Sometimes the server runs fine for ...
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0answers
11 views

Pam modules: some troubles understanding things

I recently started to study PAM and for the moment I am having troubles in understanding an entry from /etc/pam.d/sshd (among others). auth required pam_unix.so ... ... ... account required ...
1
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0answers
17 views

How to make Supervisord read bash environment variables

I am using Supervisord to run my java application, which requires some environment variables for configuration. I am setting the environment variables in /etc/environment export ...
0
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0answers
8 views

Broken Pipe error being thrown when configuring OAM 11g for simple mode

I looking for some advice/help with OAM 11g which when configured for simple mode with a 10g Seagate throws an error on the oam server of broken pipe. The set up is oam server is on a Linux 64 bit ...
0
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1answer
17 views

How to log server IP in exim main log

I'm sending mails using IP rotation in exim, I tried to log the server IP in exim log, using log_selector = +all in exim conf, but it's not logging the server IP in exim main log Is it possible to ...
0
votes
1answer
15 views

BackupPC schedule advanced settings

I've just installed this great tool for network backups called BackupPC but I'm having some difficulties setting the Schedule parameters as I want. As I see it, BackupPC has some basic schedule ...
0
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0answers
4 views

Trying to run Konsole from XMing (Windows) fails [migrated]

Connecting from XMing latest running on a Windows 7 laptop to an Ubuntu 14.04 server running KDE. I get the following error: cpatti@hab: ~ $ konsole ...
0
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2answers
45 views

Gateway can be pinged, but fail to add route with it

I want to use 10.1.16.189 as gateway to access 9.36.204.4 both on redhat 6.4. here is the network configuration of my machine: eth0 Link encap:Ethernet HWaddr 06:FB:C1:7B:19:FD ...
0
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1answer
24 views

EXT4 Single Larger Volume or Many Smaller Volumes

My question is regarding the file system performance of EXT4 volumes relative to size. We have a NAS running any arbitrary Linux platform. The NAS has (12) 4TB disks in a hardware RAID 6 with LVM ...
0
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0answers
28 views

Debian server hacked - root login on /dev/tty1 - therebel exploit [duplicate]

I have a test server running Debian Wheezy (Kernel 3.2.0-4-amd64) and OwnCloud 7. It is a virtual machine hosted on a Debian Wheezy kvm Server. It uses an own IP address configured via br0. I made ...
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0answers
25 views

Find out what processes are forking

My server seems to be a bit slow, so I decided to install munin to see what is happening. One statistic that stands out is that the server is forking 50 times a second, which seems a little excessive ...
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0answers
17 views

Fix program freeze with ram

I'm using program with small bug. It's closed - source, so i cant change it code. It's very good for what its doing, and there is no apps like that one. So i can't use other programs. But that ...
2
votes
1answer
24 views

How do I monitor file modifications of a Linux user from the user process instead of the file-system itself? [on hold]

We have a requirement to fill that will give us a daily report on all the changes that were made (and who made them) through the SSH protocol; whether it be files or database resources. Monitoring ...
0
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0answers
3 views

m_split reverse operation for mbufs [on hold]

I need to perform an operation to combine two mbufs as a single mbuf pointing the complete data by both the single mbufs. For instance, if mbufA --> 0xA0 to 0xB0, and mbufB --> 0xB0 to 0xC0 and these ...
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0answers
17 views

RHEL6.4 server did not send a SYN/ACK packet in response to a SYN packet from AppDirector intermittent

In my case, client access this RHEL6.4 server thought AppDirector, so the TCP connection is from AppDirector to the server. According to wireshark, sometimes, RHEL server didn't respond for the first ...
1
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0answers
10 views

Is it possible to add support for additional OIDs in SNMPD (RHEL)

I am trying to have my monitor poll the number of ESTABLISHED TCP sessions on a Linux server that is running snmpd. The OID information I am trying to poll can be found Here . The OID is ...
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0answers
8 views

MAC to MAC MII interface not working

I have a MAC to MAC MII interface, whose schematic design is followed from here. I want to ping one device from another. I have worked with MAC to PHY MII interface and get it working. On ...
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3answers
45 views

Linux network interfaces take so long to come up

When any of the network interfaces on my x86 server comes up (1GbE port with igb driver, or 10GbE port with ixgbe driver), whether it's been done using ifup or by enabling the switch ports it's ...
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0answers
9 views

Exim4 panicking, missing /etc/vmail/<domain>/passwd file

I keep getting this error. /var/log/mail.err Jan 22 05:00:03 home exim4: ALERT: exim paniclog /var/log/exim4/paniclog has non-zero size, mail system possibly broken Checking ...
0
votes
0answers
12 views

Rolling your own mongodb server with WebUI for admin? [on hold]

Recently we came to conclusion that we will need some pretty powerful mongodb machine. So i came to this very nice 320 USD/month Digital Ocean machine ( 12 CPU / 32 GB RAM ), but i have no previous ...
0
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0answers
14 views

Hadoop HA connection issue

I am using the Azure VM to build a Hadoop HA cluster, I'm trying to set up an Active namenode and a Standby namenode. But when I finished my configurations, I found I can only access one namenode via ...
0
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1answer
27 views

Is my default File System ext4

By running df -hT that shows mounted file systems, how can I know if my default FS is ext4? Also as mentioned by one of the MongoDB engineers in this video (@1:13) from M202: MONGODB ADVANCED ...
0
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1answer
24 views

Installing RHEL 5.8 on > 2TB drive

I'm trying to install RHEL 5.8 x64 on Cisco UCS C240 server with 4TB OS Drive. The drive is behind LSI MegaSAS. Before installing RHEL, I booted off from an Ububtu 14.04 Live DVD. Using gparted, ...
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1answer
14 views

Dumpcap on remote linux interface

I want to capture packets on a remote linux interface using dumpcap. I have observed that there is a command - dumpcap -i rpcap://<host>/<interface> and dumpcap -i ...
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0answers
13 views

Ubuntu Server 14.04 stops responding [on hold]

This is a crosspost from askubuntu. I have set up an Ubuntu server at home to host a small web-page containing files I want to access from outside. All is working really well but sometimes if I wake ...
0
votes
1answer
15 views

Linux: Remove start entries only with file access

I need to disable a service (in this case bind9) from the default Linux startup because I keeps freezing the system at startup. I can't access the server via SSH or otherwise, i only have access to ...
0
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0answers
18 views

Run a Linux GUI application as service accessible via web (VNC?) [on hold]

We have a Linux GUI application (written mostly in Qt) and we've been tasked with creating a web-accessible method of running it. That is, the application will be hosted on our server(s) and the users ...
0
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1answer
19 views

Nginx Cache with PHP-FPM

I have the folowing niginx config file: server { listen 80; server_name pajilleros.com www.pajilleros.com; access_log off; location / { root ...
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0answers
6 views

Can the BS option cause data inconsistency with dd? [migrated]

I have a laptop partition (truecrypt) backed up with dd since it's impossible to back it up with anything else but do a raw bit by bit copy like: dd if=/dev/sda of=imagefile.img I can of course ...
1
vote
1answer
150 views

iptables block port range with single port exception

I`ve two rules. First blocked all port from range: -A INPUT -m state --state NEW -m tcp -p tcp --match multiport --dports 200:65535 -j DROP and second open one in this range: -A INPUT -i ...
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0answers
20 views

Linux raw socket (layer2) - best strategy [migrated]

The context: I am thinking about the best way to process packet from nic to apps. I have 4 processes running and receiving packets from ethernet nic. They run pf_packet sockets so they receive ...
0
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0answers
17 views

How to read/ modify freetds.conf (for ODBC) using augtool or similar in bash script?

How can I get augtool (augeas) or a similarly common tool to work with freetds.conf, so I can automate some configuration in a bash install script? This doesn't seem to work: augtool print ...
0
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0answers
23 views

Linux - set the number of rx/tx queues

Context Debian 64 bits. kernel 3.12.x Question I own a "Ethernet controller: Marvell Technology Group Ltd. 88E8053 PCI-E Gigabit Ethernet Controller (rev 22)" on my laptop. i would like that NIC ...
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0answers
12 views

Issue with port range of passive FTPS using VSFTPD

First of all, I am aware that there are many similar questions to this one out there, however the common solution to those problems is the source of my problem; therefore I am asking my own question. ...
1
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0answers
38 views

OpenVPN Linux client - tls key negotiation failed to occur (FrootVPN) [migrated]

I'm using the free FrootVPN service (works flawlessly on Windows). However on Linux I can't manage to get it to work. FrootVPN's support webpage is broken so I can't message their support. I know ...
1
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0answers
33 views

Slow performance due to txg_sync for ZFS 0.6.3 on Ubuntu 14.04

I am using native ZFS with "ZFS on Linux" installed from the PPA here. Setup was not a problem and I am using it in mirrored configuration with two WD 4TB Red HDDs. Unfortunately I am having ...
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1answer
30 views

Error code: ERR_CONNECTION_REFUSED [on hold]

I ran the drush cron command, and it was taking a long time so I let it run. The website is down now somehow. I stopped the process of the cron, but now when I try to go there, I just get: This ...
0
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0answers
11 views

How to sync configuration and settings to fallback / failover server [on hold]

I have a Linux file/web/git and other things server that is in use 24/7. I've just bought an identical machine and I would now like to go about duplicating the server on to the new machine to use as a ...
0
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0answers
7 views

LDAP uniqueMember attribute not recognised in linux

I have an LDAP group with a groupOfUniqueNames objectclass and and an auxiliary posixGroup objectclass. When I use the memberUid attribute the values (members of group) are recognised in linux. But ...
2
votes
1answer
24 views

How to test non-smtp ACLs in exim

Exim provides the option to test your ACLs via CLI using exim -bh. However, this method opens an SMTP connection and you can only test SMTP ACLs. I wish to debug and test the acl_not_smtp ACL - is ...
1
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0answers
52 views

finding if my linux server is the bottleneck

I have a redhat linux 6.x server being used for writing of backup images by NetBackup before being dedup to tape library. currently, I have at least 20 servers writing to it every time their backup ...
5
votes
3answers
544 views

If condition is true, sleep the cron job for 5 minutes

I have a script set to run after every minute. But in the script we have mentioned, if a condition is true, the script has to sleep for 5 minutes. How could this affect the crontab? Will the script be ...