What does the immutable bit do to a file?

896

---

What are hard links?

791

---

What is an a record, an ns record, a ptr record, a cname record, an mx record?

847

---

What does ps do?

849

---

What is linux? How is it different from unix?

883

---

What does sar provide?

826

---

What is the ssl handshake?

832

---

How to connect to a remote server via ssh?

866

---

What is a typical size for a swap partition under a linux system?

931

---

What is the difference between soft and hard mounting points?

831

---

What is a zombie process?

875

---

State the difference between swap partition and a swap file?

884

---

What is ld_library_path?

903

---

What is the difference between an environment and a local variable?

872

---

What does ls -r do?

963

---