configure
Here’s a quick post on how to build and setup NFS server. Fedora 9: Quick NFS Server HowTo NFS Server Configuration 1. Download and install NFS rpm package using yum # yum -y install nfs-utils rpcbind If you have an earlier Fedora versions # yum -y intall nfs-utils portmap 2. Prepare and modify /etc/exports for [...]
Linux accesses, build, command, configuration, configure, create, exports, file, folders, install, network, networking, nfs, server, servers, services, source,
Sharing files over network have been very usual network activity in any type of networks whether private or public network. NFS is only way of sharing files located from server over a network of hosts. Here’s a quick run down on how top mount an existing read-only NFS share folder over a network from a [...]
Tech Guru activation, client, configuration, configure, exports, file, folders, hosts, linux, network, networking, nfs, server, servers, services,
There has been a lot of web debates and arguments which STMP email server works better, safer and faster. Not to discredit any other SMTP armies on the field, but I do often hear people debating about how difficult for them to configure Sendmail on time. Probably sendmail should be repackaged with a little teaspoon [...]
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As soon as a host connects to SMTP port running a sendmail MTA, sendmail can also be configured to check and block IP addresses of incoming emails that are found to be listed on one or more DNS blacklists. This is possible by configuring sendmail directive dnsbl or DNS blacklists. During the SMTP handshake and [...]
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Yahoo messenger from Yahoo! is one of the most commonly installed messenger on windows-based desktop systems, besides from MSN messenger, which comes as a default windows messenger from windows OS. In Linux world, there are variety of all around chat/voice messengers available. From the default GNOME GAIM messenger, now known as Pidgin, there’s also Kopete [...]
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Normally, when delivering mails to destination host by any mail transfer agent (MTA), MTA keeps track of delivery details such as delivery item location, delivery time stamps, particular mail IDs, and delivery attempt status. If a problem occurs when sending mails, normally an attempt should be made a later time and MTAs should queue up [...]
IT-Tips, Linux, Sendmail Backup, computer, configuration, configure, connection, email, hosts, network, networking, queues, sendmail, server, servers, smtp, track,
Both on Linux and Windows world, we get used to a lot of things. This attitude of getting used to the world around us at times, shower us some attitude of just-accept-that and do-not-complain. Getting down to network connectivity, at times, we are just used to plug the cable and wait for it network card [...]
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Considering the high-end rising PCs and storage capacity nowadays, it is now practical and cost effective to do backup management and administration to server’s local or network storage disk, not like decades ago where you would buy a very costly tape backup drive to backup small enteprise scaled data. This is where we cover BackupPC. [...]
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This sendmail directive implements the number of allowed recipients of each email message. One signature of an email spammer is delivering an email to thousands and hundreds of recipients all at the same time. This sendmail directive prevents that. MAX_RCPTS_PER_MESSAGE If an email message comes with more than the allowed number of recipients per message, [...]
Linux activation, Backup, configuration, configure, connection, edit, edition, email, network, networking, prevent, sendmail, sites, smtp,
Changing file permission is a file security thing. Any file owned by another user with improper file permissions could grant file access for free to any system users. This could also lead to super user access to the whole operating system in the case of improper default umask value with shadow and password files. Introducing [...]
IT-Tips, Linux accesses, Backup, configuration, configure, create, determine, difference, directory, file, logins, passwords, secure, Security, shadow, shell, system, systems,
Whenever a sendmail receives SMTP request and connection from a remote host, it spawn’s a new copy of itself to deal with incoming mail messages. This approach makes it useful for sendmail to process multiple incoming mails simultaneously. However, the nature of linux application always comes with a trade off thing. This issue of spawning [...]
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With default OpenSSH installation, SSH allows access to any clients. This retriction can be configured to allow SSH access only to certain hosts and IP addresses to decrease unauthorized SSH login attempts to known and particular computer hosts and IP addresses only. SSH Access Restrictions via TCP Wrapper Step One 1. Backup and modify /etc/hosts.allow [...]
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From recent SSH post entry of restricing SSH access to specific IP address and computer hosts, we now move on to restrict SSH port and SSH connection to specific or particular users. As a requirement, an existing SSH server should be currently installed and running. If not, simpl install openssh server rpm package and start [...]
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Multiple SSH attacks coming from multiple hosts with multiple connection can bog down even a firewalled SSH server. Minimizing these kind of attacks can lessen SSH brute force attempts and decrease SSH hack attempts at the same time. Here’s a quick entry on how to tweak SSH configuration to limit the maximum number of unauthenticated [...]
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When booting from Fedora and other rpm-based linux distro, pressing ESC key will take you to GRUB menu. By default, GRUB menu holds a default display timeout of 5 seconds. Here’s an entry on how to modify your grub configuration file to increase or decrease GRUB timeout value. Modify GRUB Display Timeout Value To modify [...]
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