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  • Issue with yum hanging. Strace provided

    - by barrrista
    If I do a simple yum update, it hangs and I get the following strace: etsockname(9, {sa_family=AF_INET, sin_port=htons(41169), sin_addr=inet_addr("hiddenip")}, [38654705680]) = 0 close(9) = 0 socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 9 connect(9, {sa_family=AF_INET, sin_port=htons(80), sin_addr=inet_addr("hiddenip")}, 16) = 0 getsockname(9, {sa_family=AF_INET, sin_port=htons(46910), sin_addr=inet_addr("hiddenip")}, [38654705680]) = 0 close(9) = 0 socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 9 connect(9, {sa_family=AF_INET, sin_port=htons(80), sin_addr=inet_addr("hiddenip")}, 16) = 0 getsockname(9, {sa_family=AF_INET, sin_port=htons(50917), sin_addr=inet_addr("hiddenip")}, [38654705680]) = 0 close(9) = 0 socket(PF_INET, SOCK_STREAM, IPPROTO_TCP) = 9 fcntl(9, F_GETFL) = 0x2 (flags O_RDWR) fcntl(9, F_SETFL, O_RDWR|O_NONBLOCK) = 0 connect(9, {sa_family=AF_INET, sin_port=htons(80), sin_addr=inet_addr("hiddenip")}, 16) = -1 EINPROGRESS (Operation now in progress) select(10, NULL, [9], NULL, {30, 0}

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  • Why is 64 bit Ubuntu not recomended for daily usage?

    - by REA_ANDREW
    I am just in the process of setting up a new laptop which came with Windows 7 64 bit installed. I am going to set it up to dual boot Windows 7 and Ubuntu. When I went to get the Ubuntu download I noticed that the 64 bit version is labelled with Not recomended for daily desktop usageNot recomended for daily desktop usage Why would this be? Why is 64 bit Ubuntu not recommended for daily desktop usage?

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  • use ubuntu from a removable drive to work both on laptop and desktop computer

    - by moragos
    my laptop, which i run ubuntu on, is getting a bit old and i find it's getting slower and slower at running applications. My desktop computer is stronger, but I can't give up on the portability of my laptop. I was thinking of installing a HD drawer for both my laptop and desktop. and when I come home just pull the HD from the laptop and plug it into the desktop. I wanted to ask if anyone have tried it or have any inputs on the idea

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  • iso9660 filesystem when remade with a slight change blows its size by 100M

    - by user1458001
    I have an iso 9660 filesystem image in which I need to edit just one file. I copied the files using cp -avf. When the files reach the destination, the sizes increase. That must be due to the increase in block size. But when I remake the iso9660 filesystem using mkisofs -J -U -r the sizes of the files remain the same and just a small editing in a file leads to a blow up of about 100M in the newly created iso image. I think I'm missing some option there, but I'm not able to find out in the manpage and google search. Some quick help would be greatly appreciated as I'm stuck. My host filesystem is ext3..if that's required.

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  • How can I use apt-get to resolve package dependencies when there are multiple versions in the repository?

    - by user1165144
    I've package a-package.deb which depends on b-package.deb in version 1.0. Everything works fine. But now a b-package in version 1.1 gets added to the repository. I'd suspect that apt-get installs the a-package and version 1.0 of the b-package. What really happens is, that a-package won't get installed: # apt-get install a-package Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: a-package : Depends: b-package (= 1.0) but 1.1 is to be installed E: Unable to correct problems, you have held broken packages. Is there a workaround to fix the behavior? Is there other software to use, that can handle the dependencies as defined?

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  • is there a way to tail a log from remote server without using any user credentials?

    - by suhprano
    I run a script tailing a log in a remote server, like so: ssh userx@someip tail -f /data/current.log|python2.7 monitorlog.py There are dependencies and service requirements that disallows me to run the script off the remote server. (DB, ACLs, and path to another service is uses) Is there a way I can tail and monitor a log without using the ssh userx@someip? I thought about generating RSA keys but I think you still need a user to ssh.

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  • ip6tables blocking output traffic

    - by jmccrohan
    My OpenVZ VPS is blocking outbound IPv6 traffic, but correctly filtering inbound IPv6 traffic. Below is my ip6tables-restore script. *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] -A INPUT -i lo -j ACCEPT -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT -A INPUT -p ipv6-icmp -j ACCEPT -A INPUT -p tcp -m tcp --dport 22 -j ACCEPT -A INPUT -p tcp -m tcp --dport 80 -j ACCEPT -A INPUT -p udp -m udp --dport 1194 -j ACCEPT -A INPUT -p tcp -m tcp --dport 51413 -j ACCEPT -A INPUT -p udp -m udp --dport 51413 -j ACCEPT -A INPUT -m limit --limit 5/min -A INPUT -j REJECT --reject-with icmp6-adm-prohibited -A FORWARD -j ACCEPT -A OUTPUT -j ACCEPT COMMIT ICMPv6 traffic is still able to pass both inbound and outbound. When I flush these rules using -F, outbound traffic flows fine. What am I missing here? EDIT: It appears that ip6tables is marking ESTABLISHED packets as INVALID. Consequently, the outbound traffic is NOT actually being blocked. The reply packets are not allowed inbound again, hence appearing like blocked outbound traffic. Allowing INVALID packets inbound solves the outbound issue, but also renders the inbound filter useless.

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  • permissions on upload folder not working

    - by Camran
    I have a php script which uploads images to a folder. I have these permissions on the upload folder: drwxrwxr-- 4 user user 4096 2010-06-02 16:20 temp_images Shouldn't these permissions be enough for files to be uploaded to the folder? But this doesn't work. It only works when I set the permissions to 777. "user" is added to the www-data group, still no luck. Any ideas why?

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  • Error : [0.8879153] kernel panic -not syncing VFS unable to mount fs unknow block (8.3)

    - by user43069
    i installed ubuntu using wubit inside the windows and started working on it then i got this error afer updating [0.8879153] kernel panic -not syncing VFS unable to mount fs unknow block (8.3) and i can't user rescue mode and it's give me another error no filesystem could mount root ..... i looked at grub folder and didn' find any file on disks/boot/grub/ so i tryed to user super grub to fix it but it didn' work and it keep giving me. boot/grub/stage1 not found i didn't edit anything from grub folder. any idea plz .

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  • Automate Restart Of Solr

    - by Brain Buddies
    I have 3 instance of solr running using tomcat (in shell u will find something like -Dcatalina.base=/usr/local/apache-tomcat-6.0.35 -) suing tomcat_1 (in shell u will find something like -Dcatalina.base=/usr/local/apache-tomcat-6.0.35_1 -) using tomcat_2 (in shell u will find something like -Dcatalina.base=/usr/local/apache-tomcat-6.0.35_2 -) Can i write a shell script which can kill the particular instance for 1 : kill tomcat but not tomcat_1 & tomcat_2 for 2 : kill tomcat_1 but not tomcat & tomcat_2 for 3 : kill tomcat_2 but not tomcat & tomcat_1

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  • Preventing an Apache 2 Server from Logging Sensitive Data

    - by jstr
    Apache 2 by default logs the entire request URI including query string of every request. What is a straight forward way to prevent an Apache 2 web server from logging sensitive data, for example passwords, credit card numbers, etc., but still log the rest of the request? I would like to log all log-in attempts including the attempted username as Apache does by default, and prevent Apache from logging the password directly. I have looked through the Apache 2 documentation and there doesn't appear to be an easy way to do this other than completely preventing logging of these requests (using SetEnvIf). How can I accomplish this?

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  • Using cd to go up multiple directory levels

    - by Tossrock
    I'm dealing with java projects which often result in deeply nested folders (/path/to/project/com/java/lang/whatever, etc) and sometimes want to be able to jump, say, 4 directory levels upwards. Typing cd ../../../.. is a pain, and I don't want to symlink. Is there some flag to cd that lets you go up multiple directory levels (in my head, it would be something like cd -u 4)? Unfortunately I can't find any man page for cd specifically, instead just getting the useless "builtins" page.

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  • what is best multi-server configuration with OpenVPN

    - by sebut
    We have a number of Database severs running MongoDB on Debian plus a number of Application servers also on Debian. The db servers hold replicating db clusters, so they need to talk to each other. Application servers need to talk to all db servers (for reasons of fault tolerance). The servers are potentially spread across multiple hosting centers, so we need secure channels between all servers. The number of servers is bound to grow, so we need a VPN solution that's easy to maintain and expand. This is why I feel that SSH that we use for testing might not be up to the task and OpenVPN seems the way to go. I have ruled out TAP, since I understand that this would mean all traffic going to all the servers - perhaps this is a misunderstanding and TAP acts more like a switch? With TUN devices I imagine that all DB servers would live in their own separate subnet, they would also need a client configured to be able to connect to each of their peers. The application servers could live in a common subnet range with a client config only. Does this sound like a reasonable setup? Strangely, on the web I did not find anything about multi-server with OpenVPN. Thanks for all insights and ideas!

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  • How to write more than one line in a launcher

    - by seraex
    How can I run three commands in a launcher? My commands are cd /home/seraex/MyDoc rm MyDoc.tgz tar cfz MyDoc.tgz * which will go to my documents folder and delete old backup and make a new backup. At the moment I make a text file and then make a launcher and point it to the file, but I want to delete the file and make the launcher run the commands directly. I'm using ubuntu 10.10 ' ubuntu site says 'Unfortunately launchers do not have access to the Bash environment so you cannot just include the multi commands' when i ggole chaining in launchers. thanks, admin may delete the question '

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  • /dev/null file became regular file

    - by user197719
    In our production server suddenly /dev/null became a regular file and due to this sshd service got stopped and not able to login the server. And also we tried to the below steps to configure back to character device file, rm -rf /dev/null mknod /dev/null c 1 3 As soon as we run the rm command /dev/null is being re-created as a regular file before mknod can run. We can't figure out how this happening and which component is creating this file. So until we solve this issue we are unable to create /dev/null as character device file.

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  • Configuring two subnets with two NICS. Access from a NAS to the internet

    - by archipestre
    I am having trouble configuring my NAS. I have a DSL router with WIFI (192.168.1.1) in my flatmates room. In my room I have a server with two NICS: 1) wlan0 (192.168.1.2) that connects to the DSL router via wireless 2) em1 (192.168.0.1) that connects to the NAS (192.168.0.20) with a crossover cable. I have Fedora 17 and I have enable packet forwarding. My IP configuration is as follows: WLAN0 inet 192.168.0.1 netmask 255.255.255.0 broadcast 192.168.0.255 EM1 inet 192.168.1.2 netmask 255.255.255.0 broadcast 192.168.1.255 My routing table looks like: Destination Gateway G enmask Flags Metric Ref Use Iface 0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 wlan0 192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 em1 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 wlan0 I have enable a static route in the DSL server: Status Network Destination Subnet Mask Interface Gateway Remove Edit Active 192.168.0.0 255.255.255.0 LAN 192.168.1.2 From my server I can ping the DSL router and the NAS. From the NAS I can ping both NICS of the server. However the NAS is unable to ping the DSL router or any address in the Internet. Any idea of what is wrong. Thank you in advance

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  • Wrap current session in a screen session

    - by NebyGemini
    I started an big operation, but I didn't start a screen session, So i can't disconnect without canceling the operation. Is there a way to inject screen so that the operation continues and sends its output to the screen session and i can safely disconnect my ssh session?

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  • Is there a list of programs for yum

    - by scriptingalias
    Basically I would like to know if there's is an actual web page that can be searched for the programs available under yum. I have yumex and I've tried using it but its super slow to search (sometimes it takes 5 minutes) and I would like some webpage or other method of doing a search. thanks,

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  • Manually Editing iptables

    - by JamesB41
    I'm using CentOS. What I'm wondering is, what happens if I manually edit /etc/sysconfig/iptables and save it? Is that the definitive source? When I type iptables -L I get something that doesn't match the contents of that file. Is there a way I can just edit the chains directly without adding/removing rules one at a time? i.e. open VIM and get everything set up the way I want it and then save. Along those lines, when I do something like iptables -A INPUT , where does that go in the immediate sense? Is it not applied until I do an iptables-save? I feel like I'm just missing an a-ha moment here and I can't seem to find the answer in a search.

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  • yum erase tells me pkg not installed. yum install tells me package is already installed

    - by barrrista
    erase complains pkg not installed yum erase libstdc++-4.1.2-52.el5_8.1.x86_64 Setting up Remove Process No Match for argument: libstdc++-4.1.2-52.el5_8.1.x86_64 Package(s) libstdc++-4.1.2-52.el5_8.1.x86_64 available, but not installed. No Packages marked for removal install complains pkge already installed yum install libstdc++-4.1.2-52.el5_8.1.x86_64 Setting up Install Process Package matching libstdc++-4.1.2-52.el5_8.1.x86_64 already installed. Checking for update. Nothing to do What gives?

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