Search Results

Search found 2616 results on 105 pages for 'yi ping'.

Page 88/105 | < Previous Page | 84 85 86 87 88 89 90 91 92 93 94 95  | Next Page >

  • Domain names timing out after VPS IP change

    - by Fourjays
    I rent a CentOS 5 VPS from a UK-based provider, with DirectAdmin also installed. On Thursday night, they carried out planned maintenance to changed the two IPs I had been assigned to two new ones. On Friday, after the change had taken place, I updated my domain name records to reflect the IP change. Since then, all of the domains pointing to the VPS are timing out. Additionally, DirectAdmin was also not responding, but was was resolved by running the ipswap scripts as found in the DirectAdmin knowledgebase. It did not fix my domains though. I have contacted the VPS provider but I have been waiting for a response for some time now. I have checked again, and again, and all the IPs referenced in DirectAdmin are correct. If I go to the server IP in my browser it responds with "Apache is functioning normally." Email accounts on the server are also functioning correctly. But if I access a domain itself, it times out. Running a ping and a DNS look-up, I can confirm the nameserver IPs are correct. If I run a trace route it reaches an IP that is similar to my VPS IPs (last 2 blocks are different) before timing out (it never shows my server IP). I am relatively new to VPS management so don't have a vast wealth of experience with troubleshooting problems on them. I have checked all of the httpd configuration files, which don't seem to have any IP references in them at all. Looking in the Apache error logs, what errors there are do not coincide with times I have tried to access the site. Is this issue at my provider's end? Is there anything else I can check or test, to rule out post-IP-change problems with my server configuration? It was all running fine prior to the IP change.

    Read the article

  • Excael 2007: Name range problems when linking workbooks

    - by Mike
    I've 30+ workbooks each with 5 specific worksheets (formated the same). Each worksheet's data needs to be linked to a master workbook, so that I end up with 5 master workbooks and all the specific data in one long table format $A$2:$I$750. (Are you still with me? ;)) I don't have access to a database, so I'm having to link the sheets to their master workbook directly. I've highlighted the data I need; named the range; and then tried referencing this from my master workbook. I get the #Value error symbol when I try to link (=[WorkbookName]!MyNamedRange) to a cell that doesn't match the top left cell of my range. Example: MyNamedrange is always =$A$2:$I43$ on one specific sheet. On my master workbook it works if it's referenced at A2 but I get #Value if it's referenced A1, or A44. Any ideas? I'm trying to link my data in one continous table so I can run a pivot on it, and other things. Can it be done like this, or should I just copy and paste? I'm trying to keep things 'linked'so I do not need to spend time C&Ping all day. Many thanks Mike.

    Read the article

  • bond0 and xen = crash

    - by Rajat
    Bonding with xen 1 - Stop all guests. Reboot dom0 after running "chkconfig xend off" and "chkconfig xendomains off". 2 - Configure bond0 by enslaving eth0 and eth1 to it. I added the below two entries to /etc/modprobe.conf. alias bond0 bonding options bond0 mode=6,miimon=100 Content of /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE=eth0 USERCTL=no ONBOOT=yes MASTER=bond0 SLAVE=yes BOOTPROTO=none Content of /etc/sysconfig/network-scripts/ifcfg-eth1 DEVICE=eth1 USERCTL=no ONBOOT=yes MASTER=bond0 SLAVE=yes BOOTPROTO=none Content of /etc/sysconfig/network-scripts/ifcfg-bond0 DEVICE=bond0 IPADDR= NETMASK= ONBOOT=yes BOOTPROTO=static USERCTL=no Did "modprobe bond0" and "service network restart" after that. 3 - Edit /etc/xen/xend-config.sxp Change (network-script network-bridge) To (network-script 'network-bridge netdev=bond0') 4 - Start xend. "service xend start". 5 - chkconfig xend on. 6 - modprode bond0 7 - more /proc/net/bonding/bond0 8 - Create guest images as usual and bridge it to xenbr0. about config i did for my xen kernel rhel 5.3 after i reboot the host server i get in place bond0 get pbond0 and its get disconnect from network only i ping to my vm's on the host server any one have any idea why xen bond0 is acting like that or what is solutions to come out of pbond0 to bond0.

    Read the article

  • Valid IP address but can't surf without rebooting

    - by Kat
    I periodically lose internet and router connection at home. When this happens, others are using the router just fine. I am connecting directly through a wired connection to a Belkin router. I can release and renew the IP (and the IP addresses change to 0.0.0.0 and to an IP in my router's range beginning with 192.168.2. as they should) but still can't surf, can't access the router interface. Cycling the router doesn't help, and again, others are able to access the router fine at this time. Only rebooting the computer resolves the issue, and everything is wonderful for a few hours- and then I lose connection again. I have several ideas where to go from here, but I'd like to get some advice first. (Using Windows XP SP3, hardwired connection) Update As stated in the originally, releasing and renewing doesn't solve the issue. However, I have an update. I can ping localhost and my router IP with no problem at all when the issue occurs. However, repairing the network connection does not help. I AM able to get back on by disabling and then re-enabling the network connection in XP. What does that tell us?

    Read the article

  • How to access Windows Server 2008 R2 file shares from a different subnet

    - by Lloyd Cotten
    We have a couple of severs that used to be Windows Server 2003 that we recently upgraded to Windows Server 2008 R2. A couple of details to set the situation up: We wiped the OS and re-installed. These servers are on one subnet (172.16.x.x) and we are trying to access some file shares on them from another subnet (10.34.x.x). Firewall is disabled on these servers. Trying to access with UNC "\172.16.x.x\sharename" and net use \172.16.x.x However, we're having problems doing this. We are getting "The network path was not found". Here's some of the things we've tried so far and the result: Tried accessing the share from other (non-2008) servers on the same subnet... Success! Ping servers from different subnet... Success! Telnet connection into port 139 from different subnet... Success! Took a scan through Local Security Policies to see if something obvious needed to be enabled / disabled / configured... Fail I'm not sure where to look next. I know that the router between the two subnets is locked down pretty good, but this did work for our 2003 servers. Has anything changed in the way of ports used for UNC / file share access in 2008? Maybe I'm missing some security policy setting? Hoping somebody can take pity on a poor programming guy that can't figure out something really simple. :-) Thanks!

    Read the article

  • Internal/External Moodle - DNS

    - by Chief17
    Network diagram: I have a moodle (a VLE) setup that I want to be internally and externally accessible. The green route on the diagram below is the route I would like the traffic to take when the user is inside the LAN, and the red route is seemingly what it does take. The website has a domain name (like most websites do). From the User PC, if I ping the domain name, I get the internal IP of the webserver (because of a hosts file entry), if I nslookup the domain name I also get the internal IP of the webserver (because of an A record on my DNS server). Running the same two commands on the webserver gives me the webservers external IP. (going well so far) If I use PHPs gethostbyname() on the moodle website and use domain name as a parameter (getting php/apache to resolve the hostname) it returns the exernal IP of the webserver (good news, DNS seems to be doing what I want it to). All things so far seem to be going well. The only thing that is confusing me and preventing the moodle single sign on from working is the fact that if I get moodle to show my IP address, it says that it is an external one (outside my NATting firewall) when it should show an internal IP. This is the issue, any ideas on how to go about resolving this? Any ideas on tests I can perform (I have also tried a tracert and the request goes directly to the webserver), anything? Thanks all!

    Read the article

  • RDP or SSH connection trough Windows 2008 server VPN hang after a while

    - by xt4fs
    I have been experiencing a very strange issue with our VPN setup on Windows Server 2008. That server is running as a Xen Virtual Machine. We use it for two purposes, permit our mobile workers to connect to another server hosted somewhere else that only allow that ip, and use it to RDP or ssh to many other virtual machine on the same server. The server has no performance issue and still a load of memory free. All other virtual machine has no problem whatsoever. Many of those virtual machine have public IP (web servers) and all their firewall are set to allow only ssh connection or RDP connection from their local interface. When I am connecting directly with either ssh or RDP to one of the other virtual machine everything run without any issues. However, when I am doing so through the VPN after some time the connection just hang, it usually continue after some time (5 or 10 minutes). It seems as more there is network usage more often it happen to a point where it is completely unusable. The worst thing I can do to hang it faster is to actually ping the vpn client IP from the local network, after some time the latency increase until it hang. This happen even if I do RDP to the local ip of the VPN server trough the VPN. The server report no problem and if I disconnect to the vpn and reconnect right away everything is alright. There is nothing wrong in the VPN server log. I have taught at the beginning that it could have been an issue with the Host server so I try to RDP,ssh directly to the guest and I have experience no issue while doing this, so it really seems to be a problem with the VPN server on Windows server 2008. Another very weird thing is it does not seems to be of any issue if you only do Internet (NAT) without trying to connect to any local ips.

    Read the article

  • iptables-restore: line 1 failed

    - by Doug
    Hello, I am new to servers, and I was following this guide and it failed on the first command instructed. Could anyone give me a hand? http://wiki.debian.org/iptables ~ZORO~:/etc# iptables-restore < /etc/iptables.test.rules iptables-restore: line 1 failed Edit: iptables.test.rules ~ZORO~:/etc# cat /etc/iptables.test.rules *filter # Allows all loopback (lo0) traffic and drop all traffic to 127/8 that doesn't use lo0 -A INPUT -i lo -j ACCEPT -A INPUT -i ! lo -d 127.0.0.0/8 -j REJECT # Accepts all established inbound connections -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT # Allows all outbound traffic # You could modify this to only allow certain traffic -A OUTPUT -j ACCEPT # Allows HTTP and HTTPS connections from anywhere (the normal ports for websites) -A INPUT -p tcp --dport 80 -j ACCEPT -A INPUT -p tcp --dport 443 -j ACCEPT # Allows SSH connections for script kiddies # THE -dport NUMBER IS THE SAME ONE YOU SET UP IN THE SSHD_CONFIG FILE -A INPUT -p tcp -m state --state NEW --dport 30000 -j ACCEPT # Now you should read up on iptables rules and consider whether ssh access # for everyone is really desired. Most likely you will only allow access from certain IPs. # Allow ping -A INPUT -p icmp -m icmp --icmp-type 8 -j ACCEPT # log iptables denied calls (access via 'dmesg' command) -A INPUT -m limit --limit 5/min -j LOG --log-prefix "iptables denied: " --log-level 7 # Reject all other inbound - default deny unless explicitly allowed policy: -A INPUT -j REJECT -A FORWARD -j REJECT COMMIT

    Read the article

  • how do you add an A record for a root domain

    - by nbv4
    this seems really simple, but I can't figure it out. I'm using xname.org since it's free and I own a bunch of domains spread over a few different registrars. The setup I desire is very simple: one A record that points the bare domain name to my server, plus a wildcard CNAME record pointing all subdomains to the same server. So if the user goes to domain.com it will point them to 285.24.435.75, if they go to www.domain, blah.domain.com, or any other sub domain, they'll get sent to 285.24.435.75. All the examples I read on the internet about setting up A records all have the A record set to a subdomain such as www. WWW is deprecated so I want to have noting to do with it. Currently my xname.org zone looks like this: $TTL 86400 ; Default TTL domain.com. IN SOA ns0.xname.org. nbvfour.gmail.com. ( 2010052503 ; serial 10800 ; Refresh period 3600 ; Retry interval 604800 ; Expire time 10800 ; Negative caching TTL ) $ORIGIN domain.com. IN NS ns2.xname.org. IN NS ns0.xname.org. IN NS ns1.xname.org. @ IN A 65.49.73.148 * IN CNAME domain.com The '@' symbol is something that the godaddy domain interface uses to mean "this root domain', but that may have been specefic to that interface and has no meaning here. Before I had a 'www' entry in the A rcords and it worked in the sense that I could ping 'www.domain.com' and it returned a response, but pinging the root domain 'domain.com' returned "no host found".

    Read the article

  • What does a connection timeout indicate when performing an NFS mount?

    - by DeeDee
    We have a shiny new QNAP NAS (TS-879U-RP), and I'm trying to mount it to our big ol' RHEL server in the same manner as our other two QNAP NAS devices. The IT department won't give me the root privileges to the NAS, so I can't SSH in (I know, I know). The first thing I did was to, via the QNAP web admin interface, create a network share named "Runs." I then added the IP of the RHEL server to the permissions list: On the RHEL server, I then added the following line to /etc/fstab: [IP of NAS]:/Runs /mnt/gsrnas3 nfs defaults 0 0 Aside from the IP and the specific mount directory name, this is how I mounted the other two NAS devices. I then created the gsrnas3 directory under /mnt/, and then ran `mount /mnt/gsrnas3' I got the following error: mount.nfs: Connection timed out My first thought is that it's a ports issue, but I don't have enough specific experience with this issue to know for sure. I have two other NAS devices by the same manufacturer already mounted to this RHEL server, so that leads me to believe the configuration issue is on the NAS side of things. I can ping the NAS device successfully from the RHEL server. Not being able to SSH into said NAS is a huge hassle, though. Any ideas?

    Read the article

  • RAID administration in Debian Lenny

    - by Siim K
    I've got an old box that I don't want to scrap yet because it's got a nice working 5-disk RAID assembly. I want to create 2 arrays: RAID 1 with 2 disks and RAID 5 with the other 3 disks. The RAID card is Intel SRCU31L. I can create the RAID 1 volume in the console that you access with Ctrl+C at startup. But it only allows for creation of one volume so I can't do anything with the 3 remaining disks. I installed Debian Lenny on the RAID 1 volume and it worked out nicely. What utilites could I now use to create/manage the RAID volumes in Debian Linux? I installed the raidutils package but get an error when trying to fetch a list: #raidutil -L controller or #raidutil -L physical # raidutil -L controller osdOpenEngine : 11/08/110-18:16:08 Fatal error, no active controller device files found. Engine connect failed: Open What could I try to get this thing working? Can you suggest any other tools? Command #lspci -vv gives me this about the controller: 00:06.1 I2O: Intel Corporation Integrated RAID (rev 02) (prog-if 01) Subsystem: Intel Corporation Device 0001 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Step ping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort - <MAbort- >SERR- <PERR- INTx- Latency: 64, Cache Line Size: 32 bytes Interrupt: pin A routed to IRQ 26 Region 0: Memory at f9800000 (32-bit, prefetchable) [size=8M] [virtual] Expansion ROM at 30020000 [disabled] [size=64K] Capabilities: <access denied> Kernel driver in use: PCI_I2O Kernel modules: i2o_core

    Read the article

  • Using public interfaces on a server connected through a GRE tunnel

    - by Evan
    I'm pretty new to networking so please forgive any terminology mistakes. I have 2 servers connected with a GRE tunnel. Server1 (10.0.0.1) ---- Server2 (10.0.0.2) I want to be able to bind to the public IPs on Server2 using Server1. To do this, I setup virtual interfaces with Server2's public IPs on Server1 and then used routing rules on Server1 to route the packets through the GRE tunnel. On Server1: ip rule add from [Server2's first public IP] table gre ip rule add from [Server2's second public IP] table gre ip route add default via 10.0.0.2 dev gre1 table gre This works great and I can see the packets arriving via GRE on Server2. I can see the packet exiting the tunnel on Server2's gre1 device as shown: From Server1: ping -I [Server2's public ip] google.com tcpdump from Server2's GRE tunnel device: 12:07:17.029160 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto ICMP (1), length 84) [Server2's public ip] > 74.125.225.38: ICMP echo request, id 6378, seq 50, length 64 This is exactly the packet I want. However, I'm not seeing it go out at all on eth0:0 (where Server2's public IP is bound to). I've tried to use routing rules to get packets coming from Server2's public IP (which would be coming out of dev gre1) to go through dev eth0 on the public default gateway and that doesn't work either. I'm at a loss, thank you to anyone who can help.

    Read the article

  • Windows 8 Pro Hyper-V guest with no internet

    - by Perplexed
    Trying to get this working on my Windows 8 Pro machine. I created an External Switch Assigned the newly available adapter to a Guest machine with Win 2008 os. My host has internet connection. Host can ping Guest, Guest cannot ping Host. Guest has no internet connection. Pasting the ip of both host and guest. Your help appreciated. HOST ========================== Ethernet adapter vEthernet (EXTSW01): Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Hyper-V Virtual Ethernet Adapter #2 Physical Address. . . . . . . . . : 9C-B7-0F-0F-D7-D0 DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::5434:a9fd:8611:d207%54(Preferred) IPv4 Address. . . . . . . . . . . : 192.168.0.15(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Lease Obtained. . . . . . . . . . : Saturday, September 8, 2012 12:34:44 PM Lease Expires . . . . . . . . . . : Saturday, September 15, 2012 12:34:44 PM Default Gateway . . . . . . . . . : 192.168.0.1 DHCP Server . . . . . . . . . . . : 192.168.0.1 DHCPv6 IAID . . . . . . . . . . . : 916240141 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-17-DC-C9-2C-9C-B7-0D-0D-D7-D0 DNS Servers . . . . . . . . . . . : 64.71.255.999 NetBIOS over Tcpip. . . . . . . . : Enabled GUEST ========================== Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft Virtual Machine Bus Network Adapter Physical Address. . . . . . . . . : 00-15-5D-3F-0F-00 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::953f:ec5c:5d84:1b50%11(Preferred) IPv4 Address. . . . . . . . . . . : 192.168.0.20(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 0.0.0.0 DHCPv6 IAID . . . . . . . . . . . : 234886493 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-17-DD-2F-29-0F-15-5E-00-0F-00 DNS Servers . . . . . . . . . . . : ::1 127.0.0.1 NetBIOS over Tcpip. . . . . . . . : Enabled

    Read the article

  • Remove server hangs, gets stuck. How to debug?

    - by bibstha
    I have an vps running on VmWare ESX with Ubuntu 8.04 LTS. It has been running smoothly for the past 3 months, however recently we've notices two strange bugs. a. The server hangs, today was second time. The nature of the hang is very strange. I can ping to the server server, it sends back response fine. However all other services like sshd, apache, mysql etc do not respond at all. When working, telnet servername 22 Escape character is '^]'. SSH-2.0-OpenSSH_5.X Debian-5ubuntu1 And other web services would run fine. When its hung, I can make tcp connections to 22 as well as 80 but receive no response at all. telnet servername 22 Escape character is '^]'. How can I debug this problem? Is there any daemons I can run that will periodically log status? Please tell me as to how to proceed with it. b. The another strange problem is that, of lately I am unable to transfer files larger than around 100KB, smaller files of around 1-2 KB works file. scp anotherserver:filename . or wget http://www.example.com/file would get stuck. There is still around 6GB of space remaining, so I don't think that is an issue. Any pointers where I should look into?

    Read the article

  • OpenVPN (Tunnelblick) Suddenly Dropping Constantly

    - by Jeremy Privett
    I've been using Tunnelblick on my Mac for OpenVPN for about a year now. All of a sudden, this morning, it decided that it was going to take a nasty turn for the worse with no explanation. Here are the symptoms I'm seeing: I can connect to the VPN fine, initially. After about 2 - 5 minutes of no interruption, the connection suddenly dies. I can still see the VPN route using netstat -rn, and Tunnelblick believes it's still connected. No VPN traffic can go through and I can't even ping the VPN gateway. Eventually, Tunnelblick will catch on that the connection has died (usually about 5 - 10 minutes later) and shoot itself to restart and then the cycle starts over again. I've tried everything I can think of to figure this one out. I've completely flushed my system by rebooting and removing Tunnelblick and all traces of OpenVPN from my system and re-installing from scratch. No dice, same problem. I'm at my wits end, because I desperately need to get this fixed as the VPN is required for me to be able to do my job. Any ideas you have would be greatly appreciated.

    Read the article

  • DNS Problems with .pt configuration

    - by Tony S.
    Hello everyone! I have a hosting service with aplus.net, however I had a need to register a .pt domain, but aplus doesnt have this service, so I contacted a .pt registar, called hostingbug.net, to do this. So now I'm owner of a .pt domain, lets say, example.pt. I gave hostingbug the aplus nameservers needed for propagation. And here began the problems. When hostingbug tried to configure, the following error was displayed: <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_4.2 <<>> @64.29.151.221 click.pt. NS +norecurse (1 server found) global options: printcmd connection timed out no servers could be reached And they told me that aplus.net needed to create a new dns zone for .pt domains. So I contacted aplus.net, and they didnt understand this issue, and told me that everything was fine with their servers, and sent me back to hostingbug. So I'm felling like a ping pong ball right now... How can I configure this "new dns zone" for .pt domains? Anyone have clue of how to do this so I can tell them? Or should I cancel aplus services? Thanks in advance

    Read the article

  • Server unreachable without www

    - by deamon
    My server is unreachable without "www." prefix, even when trying it with ping. The DNS entry looks like this: $TTL 86400 @ IN SOA ns1.first-ns.de. postmaster.robot.first-ns.de. ( 2011010600 ; serial 14400 ; refresh 1800 ; retry 604800 ; expire 86400 ) ; minimum @ IN NS robotns3.second-ns.com. @ IN NS robotns2.second-ns.de. @ IN NS ns1.first-ns.de. @ IN A 1.2.3.4 localhost IN A 127.0.0.1 mail IN A 1.2.3.4 www IN A 1.2.3.4 ftp IN CNAME www imap IN CNAME www loopback IN CNAME localhost pop IN CNAME www relay IN CNAME www smtp IN CNAME www @ A DNS record of the same type for another domain on the same server is working with and without "www". And the VirualHost config looks like this: <VirtualHost *:80> ServerName somewhere.com ServerAlias www.somewhere.com ServerSignature Off ... </VirtualHost> Any idea what could be wrong?

    Read the article

  • Some guest networking and VMware Tools functionality broken with Sprint SmartView on the host

    - by Mads
    Using VMware Workstation 6.5.3 on Vista 64-bit. I started having problems with VMware networking about 6 months ago after upgrades to Sprint SmartView. I did not have problems previously, but I don't know if that is because I was lucky. The main symptoms of the problem when SmartView is installed are: I can no longer drag files from the host to copy them to the guest. When they are dragged, the disallowed cursor (the circle with a slash) shows in the guest. If I try to enable shared folders in the guest while it is running, I will not be able to see the shared files and will be informed that networking is not working. I can still ping guests from the host and I can still access network services via NAT most of the time when connected via my USB broadband adapter. When I configure shared folders so they are "always enabled" (with a mapped drive), I can access files on the via the mapped folders. I can also copy the file on the host and then paste it in the guest, as was suggested in some other threads concerning drag-and-drop problems that I found. The VMware Tools icon is showing in all cases and I don't see any obvious errors in the host's event viewer. If I uninstall SmartView, the problems disappear. If SmartView (current version is 2.28.0082) is reinstalled I will experience the same problems. I have tried uninstalling/reinstalling VMware and SmartView in various ways but it appears tha these problems are consistent when SmartView is installed (not just when it is running or connected, but when it is present on the system). I'm wondering if this is a combination of software (WS 6.5.3, Vista64, and SmartView) that works for other people, which would indicate a problem that is peculiar to my configuration.

    Read the article

  • Translating IPTables rule to UFW

    - by Dario Fumagalli
    we are using an Ubuntu 12.04 x64 LTS VPS. Firewall being used is UFW. I have setup a Varnish + LEMP setup. along with other things, including an Openswan IPSEC VPN from our office to the VPS data center. A second in house Ubuntu box is to act as MySQL slave and fetch data from the VPS through the VPN. Master's ppp0 is seen as 10.1.2.1 from the slave, they ping etc. I have done the various required tasks but I can't get the client (slave) MySQL (nor telnet 10.1.2.1 3306) to access the master through the VPN unless I issue this fairly obvious IPTables command: iptables -A INPUT -s 10.1.2.0/24 -p tcp --dport 3306 -j ACCEPT I willingly forced the accepted input to come from the last octet. With this rule everything works just fine! However I want to translate this command to UFW syntax so to keep everything in one place. Now I admit being inexperienced with UFW, I prepared rules like: ufw allow proto tcp from 10.1.2.0/24 port mysql and 2-3 variations involving specifying 3306 instead of mysql, specifying a target IP (MySQL's my.cnf at the moment is configured as 0.0.0.0) and similar but I just don't seem to be able to replicate the simple iptables rule in a functional way. Anyone could kindly give me a suggestion that is not to dump UFW? Thanks in advance.

    Read the article

  • Delete ARP cache on Mac OS when moving from one Wifi network to the other

    - by Puneet
    I am facing wireless connectivity problems when I move from one Wifi network to the other. Here is how it happens: I am at my friends place. I connect to his Wifi. His Wifi router ip address is 192.168.0.1. Everything is fine I close my laptop, come back to my house, open my laptop and I connect to the Wifi Network at my place. Different ESSID, but the Wifi router address is the same 192.168.0.1. At this point I cant get to anything on the internet. To debug I try to see if I can ping the router (192.168.0.1), I cant. I get a no route to host. Meanwhile airport tells me Im connected to Wifi. I see the arp cache and I see a permanent entry for 192.168.0.1 ? (192.168.0.1) at 5c:d9:98:65:73:6c on en1 permanent [ethernet] This permanent bit looks problematic. I go ahead and delete the arp cache entry and all is fine with the world until I go back to my friends place where the same situation plays out. Now my question is, why the hell is this happening? If there is no way around it, can I run a script on Wifi connect/disconnect to clear out the arp cache? Im using Mac OS X $uname -a Darwin 10.8.0 Darwin Kernel Version 10.8.0: Tue Jun 7 16:33:36 PDT 2011; root:xnu-1504.15.3~1/RELEASE_I386 i386

    Read the article

  • Windows 2008 R2 Servers Sending Arp Requests for IPs outside Subnet

    - by Kyle Brandt
    By running a packet capture on my my routers I see some of my servers sending ARP requests for IPs that exist outside of its network. For example if my network is: Network: 8.8.8.0/24 Gateway: 8.8.8.1 (MAC: 00:21:9b:aa:aa:aa) Example Server: 8.8.8.20 (MAC: 00:21:9b:bb:bb:bb) By running a capture on the interface that has 8.8.8.1 I see requests like: Sender Mac: 00:21:9b:bb:bb:bb Sender IP: 8.8.8.20 Target MAC: 00:21:9b:aa:aa:aa Target IP: 69.63.181.58 Anyone seen this behavior before? My understanding of ARP is that requests should only go out for IPs within the subnet... Am I confused in my understanding of ARP? If I am not confused, anyone seen this behavior? Also, these seem to happen in bursts and it doesn't happen when I do something like ping an IP outside of the network. Update: In response to Ian's questions. I am not running anything like Hyper-V. I have multiple interfaces but only one is active (Using BACS failover teaming). The subnet mask is 255.255.255.0 (Even if it were something different it wouldn't explain an IP like 69.63.181.58). When I run MS Network Monitor or wireshark I do not see these ARP requests. What happens is that on the router capturing I see a burst of about 10 requests for IPs outside of the network from the host machine. On the machine itself using wireshark or NetMon I see a flood of ARP responses for all the machines on the network. However, I don't see any requests in the capture asking for those responses. So it seems like maybe it is maybe refreshing the arp cache but including IPs that outside of the network. Also when it does this NetMon doesn't show the ARP requests?

    Read the article

  • Why would my wireless cut in and out every minute or so?

    - by Strilanc
    I've been having problems with my wireless. I moved to a new apartment, and the wireless seems incredibly unreliable. Sometimes it will be stable for hours until, all of a sudden, it starts cutting in and out. I'll get 30-90 seconds of normal behavior, then 5-30 seconds of nothing, then repeat. Sometimes the connection will stop working entirely, until I power-cycle the router. It is extremely, extremely annoying. Surfing the web isn't too bad, assuming you can stand the random 5-30 second waits. But some connections are sensitive enough to timeout, and it certainly makes multiplayer games unplayable. Facts: I confirmed the problem using ping google.com -t. I get normal traffic, interspersed with bursts of "Request timed out.". I've never had this problem before with this laptop. I didn't bring my own router or modem to the apartment. I'm using what the old tenant had. Hooking directly to the modem via an ethernet cable results in a stable connection. Temporarily cutting power to the router sometimes fixes the problem. Sometimes it doesn't. I reset the router, but the problem remained. Apparently the previous tenant had issues with the internet, but I don't know what they were specifically. The router is a D-Link DIR-615, and their tech support is useless.

    Read the article

  • How to set up port forwarding on a dedicated server running CentOS 5.4 to use Ubuntu 9.0.4

    - by mairtinh
    The basic situation that I have is a dedicated server running CentOS 5.4 At the moment I have one VM running Ubuntu 9.0.4. Later on, I will want to add another VM running Windows Server 2003 but at the moment I am focusing on getting Ubuntu up and running. The Ubuntu installation is working fine but I'm seriously struggling to get port forwarding working so that I can access websites to be hosted on the Ubuntu VM. As a newbie to Linux, I am confused about the relationship between IPTables and VMWare's own port forwarding. Here's what I've tried so far. The IP of my server is xxx.xxx.xxx.xxx and the provider support have told me that the subnet mask is 255.255.255.0, the gateway address is xxx.xxx.xxx.1 and the network address is xxx.xxx.xxx.0. (Those latter two surprise me a bit, I expected private gateway/network address rather than public ones.) First of all I tried Bridged Networking but had no success at all in communicating with the machine other than through the VMware console. I tried pinging it from the host (using ssh into the host) but no joy; also no Inernet access from the VM. I changed the interfaces configuration from DHCP to Static, using a static address of 192.168.1.100 and setting the gateway to xxx.xxx.xxx.1 as advised by the provider. No real difference, still cannot ping the guest from the host or vice versa and no Internet access from the guest. Then I tried NAT. The host automatically set the IP address to 192.168.132.128 with a gateway of 192.168.132.2 Now the guest has Internet access out and when I do a VNC to the host and open Firefox with 192.168.132.128 I can see the hosted website okay but I still cannot get into it from outside. I mentioned that I'm a bit confused about IPtables and VMware port forwarding, what I meant is that I'm not sure whether IPtable forwarding should be set to the IP address of the guest interface (192.168.132.128 in this case) or the gateway address 192.168.132.2 . I have a feeling that I'm missing something very simple here, can anybody tell me what it is?

    Read the article

  • Can't connect remotely to Windows Server 2008 R2

    - by JohnyD
    I have a new Dell R710 server running Windows Server 2008 R2. I one of it's 4 nic's set up and the rest are not being used. I have successfully given it an ip address, network mask, and dns servers. I can ping and resolve this machine from anywhere else in the network. However, when I try to connect to it via RDP it does several things: 1) it might just outright refuse me with the message, "This computer can't connect to the remote computer. Try connecting again." 2) it might connect me and let me chose the account I would like to log on as... but when you select an account then you receive the same message as in #1 3) it might actually allow you to connect but only for about 1 minute and then you receive the same message and it closes your session. I have configured the firewall service to allow for RDP over the domain network connection. This didn't have any noticible effect. I have now disabled the firewall for all 3 networks and have even stopped the Windows Firewall service. I am still having the same issue. I am new to Server 2008 R2 and things are very different. Please give me any advice you can on how to resolve this issue and/or any other gotchas that are sure to come my way. The 2003 - 2008 learning curve seems steep. Thanks

    Read the article

  • DLINK WBR-1310B Wireless Router seems to hang...

    - by Ira Baxter
    I have a brand new DLINK-1310B Wireless Router (box never before opened, although I bought it the neighborhood computer junk store). I am using it at home (and in fact am using it this instant from a wireless laptop). When operative, I can ping it at 192.168.0.1, and I can log into it from the PC attached to by LAN and from the wireless PC at //192.168.0.1. In the course of the day since I've installed, it seems to have locked up 3 times. Each time the symptoms are my web browser (or other internet service) stops with a "No internet connection" error. Attempts to contact the router via 192.168.0.1 get no reaction, from either the wireless laptop or from the hardwired PC sitting next to it. It doesn't respond to pings to that address either. Rebooting fixes it. Its brand new. I've seen discussion in other questions about aging cheap electronics. Its too new to be aged. Anyboyd else seen this behavior with a DLINK-1310? Or do I just need to exchange it for another and try again? (I hate rolling dice, I bought the DLINK becuase a previous Linksys died of apparant heating problems). Remarkably, nobody talks about how much software is in a router. Is the stuff just buggy?

    Read the article

< Previous Page | 84 85 86 87 88 89 90 91 92 93 94 95  | Next Page >