chris

How To Set Up ProFTPD on Ubuntu 12.04 — step-by-step Linux tutorial on Progressive Robot

How To Set Up ProFTPD on Ubuntu 12.04

ProFTPD is a popular ftp server. Although it is not the lightest ftp server available for virtual servers, it is a powerful and configurable program. This tutorial explains how to install, configure, and access the ProFTPD server. It is written for Ubuntu 12.04.

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FreeBSD 12 — npm — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — npm — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 30 June 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: NPM — Multiple vulnerabilities Related CVEs: CVE-2019-16775 CVE-2019-16776 CVE-2019-16777 Upstream summary: NPM reports: Global node_modules Binary Overwrite Symlink reference outside of node_modules Arbitrary File Write Table of contents Symptom & […]

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How to Set Up a Ceph Storage Cluster on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Set Up a Ceph Storage Cluster on RHEL 8

Ceph is a unified, distributed storage system that simultaneously provides object, block, and file storage on commodity hardware. It eliminates single points of failure through replication and erasure coding, and scales linearly by adding nodes. The cephadm tool, introduced in Ceph Octopus, simplifies cluster deployment by using containers (Podman on RHEL 8) to manage Ceph […]

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SLES 12 — gettext-tools — vulnerability — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — gettext-tools — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 30 June 2019 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-IU-2020:117-1 (see also SUSE bugzilla) Related CVEs: CVE-2018-18751 Upstream summary: An issue was discovered in GNU gettext 0.19.8. There is a double free in default_add_message in read-catalog.c, related to an invalid free […]

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openSUSE Tumbleweed — inn — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — inn — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2020:0234-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-3692 Upstream summary: The packaging of inn on SUSE Linux Enterprise Server 11; openSUSE Factory, Leap 15.1 allows local attackers to escalate from user inn […]

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ConcurrentHashMap in Java — step-by-step Programming tutorial on Progressive Robot

ConcurrentHashMap in Java

If you are a Java Developer, I am sure that you must be aware of ConcurrentModificationException that comes when you want to modify the Collection object while using iterator to go through with all its element.

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SLES 15 — terraform — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — terraform — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 30 June 2019 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2020:0320-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-19316 Upstream summary: When using the Azure backend with a shared access signature (SAS), Terraform versions prior to 0.12.17 may transmit the token and state […]

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