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  • How can I remove OLD history from Google Chrome?

    - by Norman Ramsey
    I'm working on a laptop with a modest hard drive, and 500MB is taken up with Google Chrome "History Index" and "Thumbnails" files. Some of these files are a year old. Chrome offers me the option to remove recent history, but I want the opposite: I want to remove old history. (Ideally I would remove the least recently used history information, but I don't expect to be able to do that.) Anyone have any ideas? I'm running the standard Debian google-chrome-beta package.

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  • shinken/nagios discriminative between warning alert and critical alert

    - by SWdream
    i using shinken for my monitoring system. Now, i have a problem when i configure shinken notification. My purpose is to discriminative between notification for warning state and critical state of check service: with warning state: + time to send alert from 8h = 18 h everyday, via email and sms + notification_interval is 60 minutes (Re-notify about service problems every hour) with critical state: + time to send alert : all time (24 x 7), via email and sms + notification_interval is 30 minutes Please show me how to solve my problem! I have tried the following: i configured: + contact templates: define contact{ name warning-contact ; The name of this contact template register 0 ; DONT REGISTER THIS DEFINITION - ITS NOT A REAL CONTACT, JUST A TEMPLATE! host_notifications_enabled 1 define contact{ service_notifications_enabled 1 email shinken@localhost can_submit_commands 1 notificationways email_warning, sms_warning } define contact{ name critical-contact ; The name of this contact template register 0 ; DONT REGISTER THIS DEFINITION - ITS NOT A REAL CONTACT, JUST A TEMPLATE! host_notifications_enabled 1 service_notifications_enabled 1 email shinken@localhost can_submit_commands 1 notificationways email_critical, sms_critical } + time poriod templates: define timeperiod{ timeperiod_name warning alias Normal Work Hours monday 08:00-18:00 tuesday 08:00-18:00 wednesday 08:00-18:00 thursday 08:00-18:00 friday 08:00-18:00 saturday 08:00-18:00 sunday 08:00-18:00 #exclude 24x7 } define timeperiod{ timeperiod_name 24x7 alias 24_Hours_A_Day,_7_Days_A_Week sunday 00:00-24:00 monday 00:00-24:00 tuesday 00:00-24:00 wednesday 00:00-24:00 thursday 00:00-24:00 friday 00:00-24:00 saturday 00:00-24:00 #exclude workhours } + notification way templates: define notificationway{ notificationway_name email_warning service_notification_period warning host_notification_period warning service_notification_options w host_notification_options d,u,r,f,s notification_interval 60 ; Resend notifications every 30 minutes service_notification_commands notify-service-by-email ; send service notifications via email host_notification_commands notify-host-by-email ; send host notifications via email } define notificationway{ notificationway_name email_critical service_notification_period 24x7 host_notification_period 24x7 service_notification_options c,r host_notification_options d,u,r,f,s notification_interval 30 ; Resend notifications every 30 minutes service_notification_commands notify-service-by-email ; send service notifications via email host_notification_commands notify-host-by-email ; send host notifications via email } define notificationway{ notificationway_name sms_warning service_notification_period warning host_notification_period warning service_notification_options w host_notification_options d,u,r,f,s notification_interval 60 ; Resend notifications every 30 minutes service_notification_commands notify-service-by-sms ; send service notifications via sms host_notification_commands notify-host-by-sms ; send host notifications via sms } define notificationway{ notificationway_name sms_critical service_notification_period 24x7 host_notification_period 24x7 service_notification_options c,r host_notification_options d,u,r,f,s notification_interval 30 ; Resend notifications every 30 minutes service_notification_commands notify-service-by-sms ; send service notifications via sms host_notification_commands notify-host-by-sms ; send host notifications via sms } + my contacts define contact{ use warning-contact contact_name thanhwarn email xxxx pager xxxx ; contact phone number } define contact{ use critical-contact contact_name thanhcritical email xxxxx pager 01689xxxx ; contact phone number } + and define service: define service{ use generic-service service_description check_ram host_name graphite contacts thanhcritical, thanhwarn check_command check_nrpe!check_ram } but my shinken system don't send alert. i don't understand this. please show me where I went wrong! thanks all!

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  • Problems connecting Centos on VMware to the network using bridged connection.

    - by Sakin
    Hi, I installed CentOs on VMware running on windows XP. When trying to configure it to connect to the internet in a bridged configuration, I get an error message when trying to bring up the network interface: [root@VMLinux ~]# /et/init.d/network start Bringing up loopback interface: [ OK ] Bringing up interface eth0: Determining IP information for eth0... failed [FAILED] VM is running on a machine that has access to the network, I tried it on two different networks that have DHCP enabled. Everything works fine when using a NAT connection through my host. How can I make the bridge work for me? Thanks.

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  • Ubuntu server; Backup of server and MySql database, and Solr database

    - by Camran
    How is backup done on ubuntu servers? I have a server (Ubuntu 9.10) which has apache2 installed, php5, mysql etc... The website is a classifieds website where all classifieds are stored in mysql and Solr. I need to backup this server with all information to be able to fully restore it if something goes wrong. How should I start? Is it an automated task, or will I do backups manually? (prefer manually) Thanks

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  • sshd: How to enable PAM authentication for specific users under

    - by Brad
    I am using sshd, and allow logins with public key authentication. I want to allow select users to log in with a PAM two-factor authentication module. Is there any way I can allow PAM two-factor authentication for a specifc user? I don't want users - By the same token - I only want to enable password authentication for specific accounts. I want my SSH daemon to reject the password authentication attempts to thwart would-be hackers into thinking that I will not accept password authentication - except for the case in which someone knows my heavily guarded secret account, which is password enabled. I want to do this for cases in which my SSH clients will not let me do either secret key, or two-factor authentication.

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  • Will these instructions work when turning of journaling on an ext4 SSD?

    - by snowlord
    I have an Acer Aspire One with an SSD for storage. I recently installed Ubuntu on it and chose ext4 for my filesystem. Then I read that journaling on an SSD isn't the best idea, so I will try to disable journaling and I have found these intstructions (from http://fenidik.blogspot.com/2010/03/ext4-disable-journal.html): # Create ext4 fs on /dev/sda10 disk mkfs.ext4 /dev/sda10 # Enable writeback mode. This mode will typically provide the best ext4 performance. tune2fs -o journal_data_writeback /dev/sda10 # Delete has_journal option tune2fs -O ^has_journal /dev/sda10 # Required fsck e2fsck -f /dev/sda10 # Check fs options dumpe2fs /dev/sda10 |more For more performance add fstab opions: data=writeback,noatime,nodiratime i.e: /dev/sda10 /opt ext4 defaults,data=writeback,noatime,nodiratime 0 0 I will use them on my boot partition. Are there any particularly bad parts here, or are there any missing steps? Will my boot partition be fit for being on an SSD after this? Or should I consider switching to ext2, or even reinstall it all and choose ext2 at partitioning time (I'd rather not though, since I've configured quite some stuff already)?

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  • Authentication required by wireless network

    - by Roman
    I would like to use a wireless network from Ubuntu. In the network drop-down menu I select a network (this is a University network I have an account there). Then I get a windows with the following fields: Wireless Security: [WPA&WPA2 Enterprise] Authentication: [Tunneled TLS] Anonymous Identity: [] CA Certificate: [(None)] Inner Authentication: [some letters] User Name: [] Password: [] I put there my user name and password and do not change default value and leave "Anonymous Identity"blank. As a result of that I get "Authentication required by wireless network". How can I solve this problem? I think it is important to notice that our system administrator tried to find some files (which are probably needed to be used as "CA Certificate"). He said that he does not know where this file is located on Ubuntu (he support only Windows). So, probably this is direction I need to go. I need to find this file. But may be I am wrong. May be something else needs to be done. Could you pleas help me with that?

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  • Apache won't follow Symlink

    - by Marvin Dickhaus
    I have a LAMP server (Ubuntu 12.10) setup on my development machine. It is a T60 modified with an SSD. The server base is in /var/www. Apache has the following config: DocumentRoot /var/www <Directory /> Options FollowSymLinks AllowOverride None </Directory> <Directory /var/www/> Options Indexes FollowSymLinks MultiViews SymLinksIfOwnerMatch AllowOverride all Order allow,deny allow from all </Directory> I'm currently developing a SilverStripe CMS featured site. The folder for the server is /var/www/sfk/. The framework and all cms relavant features are in their respective folders. The only folder that need to be modified would be the /var/www/sfk/mysite folder. Because of that I want to keep the mysite folder under my home directory and symlink it into the server folder. So here is what I've done: ln -s ~/sfk/mysite/ /var/www/sfk/ sudo chgrp www-data /var/www/sfk/mysite -R ls tells me the following: /var/www/sfk (exerpt) drwxr-xr-x 3 marvin www-data 4096 Nov 16 16:53 assets drwxr-xr-x 12 marvin www-data 4096 Nov 16 16:53 cms drwxr-xr-x 29 marvin www-data 4096 Nov 16 16:53 framework -rw-r--r-- 1 marvin www-data 2410 Nov 16 16:53 index.php lrwxrwxrwx 1 marvin www-data 24 Nov 20 17:45 mysite -> /home/marvin/sfk/mysite/ -rw-rw-r-- 1 marvin www-data 514 Nov 16 16:55 _ss_environment.php drwxr-xr-x 4 marvin www-data 4096 Nov 16 16:53 themes and ls /var/www/sfk/mysite/ drwxrwxr-x 6 marvin www-data 4096 Nov 16 00:15 code drwxrwxr-x 2 marvin www-data 4096 Nov 16 11:51 _config -rwxrwxr-x 1 marvin www-data 2685 Nov 16 15:39 _config.php drwxrwxr-x 2 marvin www-data 4096 Nov 16 00:15 css drwxrwxr-x 2 marvin www-data 4096 Nov 16 00:15 images drwxrwxr-x 2 marvin www-data 4096 Nov 16 00:15 javascript drwxrwxr-x 5 marvin www-data 4096 Nov 16 00:15 templates This is literally the same setup I have on my desktop machine. The problem I have is that the mysite/ folder is just not recognized. I'm thankful for every advice I get. I'm frustrated because I'm stuck with this issue for hours.

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  • Raid1 with active and spare partition

    - by Daniel Baron
    I am having the following problem with a RAID1 software raid partition on my Ubuntu system (10.04 LTS, 2.6.32-24-server in case it matters). One of my disks (sdb5) reported I/O errors and was therefore marked faulty in the array. The array was then degraded with one active device. Hence, I replaced the harddisk, cloned the partition table and added all new partitions to my raid arrays. After syncing all partitions ended up fine, having 2 active devices - except one of them. The partition which reported the faulty disk before, however, did not include the new partition as an active device but as a spare disk: md3 : active raid1 sdb5[2] sda5[1] 4881344 blocks [2/1] [_U] A detailed look reveals: root@server:~# mdadm --detail /dev/md3 [...] Number Major Minor RaidDevice State 2 8 21 0 spare rebuilding /dev/sdb5 1 8 5 1 active sync /dev/sda5 So here is the question: How do I tell my raid to turn the spare disk into an active one? And why has it been added as a spare device? Recreating or reassembling the array is not an option, because it is my root partition. And I can not find any hints to that subject in the Software Raid HOWTO. Any help would be appreciated. Current Solution I found a solution to my problem, but I am not sure that this is the actual way to do it. Having a closer look at my raid I found that sdb5 was always listed as a spare device: mdadm --examine /dev/sdb5 [...] Number Major Minor RaidDevice State this 2 8 21 2 spare /dev/sdb5 0 0 0 0 0 removed 1 1 8 5 1 active sync /dev/sda5 2 2 8 21 2 spare /dev/sdb5 so readding the device sdb5 to the array md3 always ended up in adding the device as a spare. Finally I just recreated the array mdadm --create /dev/md3 --level=1 -n2 -x0 /dev/sda5 /dev/sdb5 which worked. But the question remains open for me: Is there a better way to manipulate the summaries in the superblock and to tell the array to turn sdb5 from a spare disk to an active disk? I am still curious for an answer.

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  • SFTP through proxy

    - by aerodynamic_props
    I have a large amount of data on scratch space at computer b that I want to get. In my network I cannot directly connect to computer b (ssh exits with "No route to host"); I must first connect to computer a, and then connect to computer b. I cannot move the data from the scratch space on computer b to computer a because of a disk quota that is imposed on me at computer a. How can I move the data from computer b to my computer in this situation?

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  • memcached install issues with lib event on server

    - by albert N
    I've installed libevent on my server in the directory root/data/ and have i'm about to install memcached with ./configure –with-lib-event=/data/; make; make install However, after running a bit I get this error saying i'm pointing to the wrong directory for libevent. checking for libevent directory... configure: error: libevent is required. You can get it from http://www.monkey.org/~provos/libevent/ If it's already installed, specify its path using --with-libevent=/dir/ make: *** No targets specified and no makefile found. Stop. make: *** No rule to make target `install'. Stop. Any suggestions. I am not experience with cli so anything is help. Thanks!

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  • Sending mail results in "Sender address rejected: Domain not found"

    - by user1281413
    The setup: WHM/CPanel CentOS 5 server running Exim and Courier for mail services, and BIND for domain name services. I recently moved servers. The old server was running a HIGHLY similar configuration, and all accounts were ported via WHM. However, the server is unable to send, and sometimes receive email. Errors I am seeing (when I do get an error mail back) state: 450 4.1.8 : Sender address rejected: Domain not found Edit for clarity: this is the error response from remote mail servers. Numerous independent mail servers come back with the same error. (Email address is merely one valid example) My first instinct of course was to check the domain records. However, k-t.org appears to have a valid record (including an MX record), even after running it through domain checks on a completely different server elsewhere and online. Note that the issue appears to happen with all the domains hosted on the server, not just k-t.org I have also ensured that a PTR was created. My Googling has only lead me to people who had fairly basic DNS mistakes, but either I'm blind/dumb (possible, DNS is not my strong suite), or it's something that is a bit more archaic. I've run out of ideas, and I can't seem to find anything that could explain why servers are unable to resolve the domains. There doesn't seem to be anything missing or incorrect.

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  • Sendmail Alias for Nonlocal Email Account

    - by Mark Roddy
    I admin a server which is running a number of web applications for a software dev team (source control, bug tracking, etc). The server has sendmail running solely as a transport to the departmental email server over which I have no control. We have someone who is still in the department but no longer on the dev team so I need to configure the transport agent to redirect all outgoing email (which would be coming from these applications) to the person that has taken their place. I added an entry in /etc/aliases like such: [email protected]: [email protected] But when I run /etc/init.d/sendmail newaliases I get the following error: /etc/mail/aliases: line 32: [email protected]... cannot alias non-local names So clearly I'm doing something I shouldn't. Is there a way to get aliases to work with non-local names or alternatively is their a way to accomplish my goal of redirecting outgoing mail for this user to another one? Technical Specs if the matter: Ubuntu 6.06 sendmail 8.13 (ubuntu provided package)

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  • OpenLDAP ACLs are not working

    - by Dr I
    First things first, I'm currently working with an OpenLDAP: slapd 2.4.36 on a Fedora release 19 (Schrödinger’s Cat). I've just install the openldap with yum and my configuration is the following one: ##### OpenLDAP Default configuration ##### # ##### OpenLDAP CORE CONFIGURATION ##### include /etc/openldap/schema/core.schema include /etc/openldap/schema/cosine.schema include /etc/openldap/schema/inetorgperson.schema include /etc/openldap/schema/nis.schema pidfile /var/lib/ldap/slapd.pid loglevel trace ##### Default Schema ##### database mdb directory /var/lib/ldap/ maxsize 1073741824 suffix "dc=domain,dc=tld" rootdn "cn=root,dc=domain,dc=tld" rootpw {SSHA}SECRETP@SSWORD ##### Default ACL ##### access to attrs=userpassword by self write by group.exact="cn=administrators,ou=builtin,ou=groups,dc=domain,dc=tld" write by anonymous auth by * none I launch my OpenLDAP service using: /usr/sbin/slapd -u ldap -h ldapi:/// ldap:/// -f /etc/openldap/slapd.conf As you can see it's a pretty simple ACL which aim to allow access to the userPassword attribute to a specific group read only, then to the owner read and write to anonymous requiring auth and refuse the access to everyone else. The problem is: Even using a valid user with correct password my ldapsearch ends with zero informations retrieved from the directory, plus I've got a strange response on the result line. # search result search: 2 result: 32 No such object # numResponses: 1 here is the ldapsearch request: ldapsearch -H ldap.domain.tld -W -b dc=domain,dc=tld -s sub -D cn=user,ou=service,ou=employees,ou=users,dc=domain,dc=tld I did not specify any filter as I want to check that ldapsearch is correctly printing only allowed attribute.

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  • mount multiple folders with nfs4 on centos

    - by microchasm
    I'm trying to get nfs4 working here. Machine 1 (server) I have a folder and in it 2 other folders I'm trying to share independently. /shared/folder1 /shared/folder2 Problem is, I can't seem to figure out how to mount the folders independently on the client. (Machine 1 - server) /etc/exports: /var/shared/folder1 192.168.200.101(rw,fsid=0,sync) /var/shared/folder2 192.168.200.101(rw,fsid=0,sync) ... exportfs -ra (Machine 2 - client) /etc/fstab: 192.168.200.201:/folder1/ /home/nfsmnt/folder1 nfs4 rw 0 0 ... mount /home/nfsmnt/folder1 mount.nfs4: 192.168.200.201:/folder1/ failed, reason given by server: No such file or directory The folder is there. I'm positive. I think there is something simple I'm missing, but I'm totally missing it. It seems like there should be a way in fstab to tell nfs which folder on the server I want to mount. But I can only find references to what looks like a root mount point (e.g. 192.168.1.1:/) which I assume is handled by exports on the server. But even with the folders set up in exports, there doesn't seem to be an apparent way to pich and choose which gets mounted. Is it not possible to mount separate folders from the same server to different mount points on the client? Any help appreciated.

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  • where are deleted files kept?

    - by ant2009
    Hello, Ubuntu 9.10 I recently deleted some files. I would like to know are the files kept in a directory? Like in windows recycle bin. I would like to know where these files are? Many thanks for any suggestions,

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  • How can I change the default domain in an OTRS installation?

    - by Jamie
    I used a turnkeylinux.org otrs installation and I'm trying to configure the default domain of 'yourhost.example.com'. I tried the following: sed -ri 's/yourhost.example.com/mydomain.com/' /usr/share/otrs/Kernel/Config/Defaults.pm sudo shutdown -r now The next time I logged and tried to create a user, the default domain was still there. How can I change default doamin in an OTRS installation?

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  • Killing all processes of current user

    - by Vi
    user@host$ killall -9 -u user Will it definitely kill all processes owned by user (including forkbombs)? No new processes is spawned to user from other users. No user's processes are in D-sleep and unkillable. No processes are trying to detect and ptrace or terminate this started killall. E.g. if killall will finish untampered and successfully is it 100% that no processes are left with this uid?

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  • How to kill user processes from the same user?

    - by Grey
    I opened a VNC server and my VNC session is suddenly dead. I have lot of xterms open. When I ssh to the machine. and type users I see a bunch of users – my user accounts, like: userA UserA UserA UserA UserA UserA UserA I know I can use pkill -u usersname Since I can only log in as userA, every time I run pkill-u UserA, it will just kill my current session. but other userAs are still there What can I do?

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  • debian 6 losing a large amount of packets

    - by Sc0rian
    I have a rather strange problem. We covered all the obvious hardware related issues (different nic, eth cable and switch) however I cannot seem to stop eth dropping packets. I have 4 servers all exactly the same. driver: e1000e version: 1.2.20-k2 firmware-version: 1.8-0 bus-info: 0000:06:00.0 They are all running the latest kernel(2.6.32-5-amd64). However they do this: RX packets:17073870634 errors:0 dropped:14147208 overruns:0 frame:0 another server: eth0 Link encap:Ethernet HWaddr e0:69:95:05:2f:cb inet addr:10.10.10.86 Bcast:10.10.10.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:5455209277 errors:0 dropped:375445 overruns:0 frame:0 TX packets:3666134366 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:6688414486673 (6.0 TiB) TX bytes:1611812171539 (1.4 TiB) Interrupt:20 Memory:d0600000-d0620000 eth1 Link encap:Ethernet HWaddr 00:1b:21:b7:7a:ce inet addr:10.10.0.86 Bcast:10.10.0.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:15473695728 errors:0 dropped:5808325 overruns:0 frame:0 TX packets:20112364421 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:9192378766434 (8.3 TiB) TX bytes:20216368266761 (18.3 TiB) Interrupt:17 Memory:d0280000-d02a0000 A massive amount of dropped packets. I have tried to load on the latest driver, 1.9.5. This did nothing. I'm not sure what else to do.

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  • How to maintain a SSD drive on Ubuntu ?

    - by Julien Nicoulaud
    I am running Ubuntu 10.04 on a Intel X25-M PostVille 160 Go SSD drive. How can I tell if there's something wrong ? What should/can I do to maintain its performance/health ? Should I use TRIM and how often ? This may look as a duplicate of this question, but I am more asking in term of good practices and learning how to use this new technology the right way...

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  • AutoMatically Creating New Sites When New Users Sign Up

    - by Eddy Freeman
    I would like to know how hosted eCommerce sites like www.shopify.com, www.3dCart.com etc.. automatically creates new sites when new users sign up. What kind of tools do they use to create those sites into the users profile. I have tried googling but couldn't find an answer. Does any of you guys have any knowledge or experience that you can share with me? Or do you know a tutorial that you can point me to? I hope my question is clear. Thanks for your help.

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  • Disable ipv6 support completely on debian squeeze 6.0.5

    - by markus
    I want to disable ipv6 support completely on debian squeeze 6.0.5. In many other posts I have seen setting the parameter net.ipv6.conf.all.disable_ipv6 = 1 in /etc/sysctl.conf should disable it. I've set that parameter and rebooted, but netstat -natp shows me that the ntp deamon is still using ipv6: udp6 0 0 :::123 :::* 0 7983 3138/ntpd Is there anything else I need to configure?

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